WO2010134365A1

WO2010134365A1 - Radiographic image capturing system

Info

Publication number: WO2010134365A1
Application number: PCT/JP2010/052255
Authority: WO
Inventors: 壮一朗山田
Original assignee: コニカミノルタエムジー株式会社
Priority date: 2009-05-19
Filing date: 2010-02-16
Publication date: 2010-11-25

Abstract

The image data and the image capturing order information, which have been obtained by radiographic image capturing in a plurality of image capturing methods are accurately associated with each other. Disclosed is a radiographic image capturing system (1) wherein a portable radiographic image detector (2) is provided with an attitude detection sensor (29) (attitude detection means) for detecting the attitude of the portable radiographic image detector (2), notifies the result of the attitude detection by the attitude detection sensor (29) to a console (7), and transmits the image data obtained by the radiographic image capturing to the console (7) in the order of image capturing. Also, the console (7) associates the image data received from the portable radiographic image detector (2) with registered image capturing order information according to the result of the attitude detection notified from the portable radiographic image detector (2) and image capturing method information included in the registered image capturing order information.

Description

Radiation imaging system

The present invention relates to a radiographic image capturing system.

For the purpose of disease diagnosis and the like, radiation images taken using radiation represented by X-ray images are widely used. Conventionally, such medical radiographic images have been taken using a screen film, but in recent years, digitization of radiographic images has been realized, and a CR (Computed Radiography) apparatus using a photostimulable phosphor sheet. Recently, a radiation image detector that detects irradiated radiation with a radiation detection element and obtains it as digital image data has been developed.

This type of radiation image detector is known as FPD (Flat Panel Detector), and is a portable radiation image detector (hereinafter simply referred to as a radiation image detector) in which a radiation detection element or the like is stored in a housing. Is a portable type radiographic image detector that has a built-in battery and wireless communication means such as an antenna and performs wireless communication with an external device such as a console. Has also been developed (see, for example, Patent Document 1). The cableless radiographic image detector does not require a cable for connecting to an external device such as a console or a power source, so that the portability of the radiographic image detector can be utilized, and radiographic image detection at the time of radiographic imaging There is no restriction on the position of the vessel, and the degree of freedom of shooting can be increased.

In addition, in the CR apparatus, it is necessary to prepare the same number of CR cassettes as the number of radiographs. In general, however, a radiographic image detector temporarily stores each image data obtained by a plurality of radiographic image captures. It has a memory for storing, and is configured to be able to continuously perform radiographic imaging multiple times (see, for example, Patent Document 2). In general, the radiation image detector is expensive, and there are many cases where a large number of radiation image detectors are not prepared depending on medical facilities such as hospitals.

In addition, the radiation image detector is usually designed and manufactured in accordance with the JIS standard size in the conventional screen / film cassette, and the existing radiation image detector has been introduced to be compatible with the conventional screen / film cassette. It is configured so that it can be loaded into a Bucky device. As the bucky device, there are known a standing-type bucky device for taking a radiographic image while the patient stands up, and a supine type bucky device for taking a radiographic image while the patient is lying on the side.

In addition, in recent years, taking advantage of the portability of the radiological image detector, it is not loaded into the bucky device, so to speak, it is used in a single state. There is an increasing number of cases in which a hand is placed directly, and radiation images are taken by irradiating radiation from a portable radiation generator.

If such a radiographic image detector is used, a single radiographic image detector can be used for standing-up imaging using a standing-type bucky device, standing-up imaging using a standing-type bucky device, and no use of a bucky device. Since it is possible to cope with each photographing method of portable photographing, it is not necessary to prepare a radiation image detector corresponding to each photographing method, which is convenient.

Japanese Patent Laid-Open No. 7-140255 Japanese Patent Laid-Open No. 6-342099

The image data acquired in the above-described radiographic image detector is transmitted from the radiographic image detector to an external device such as a console, and the console associates with imaging order information including patient information, imaging conditions, and the like of the patient to be imaged. And stored in a predetermined storage area.

Here, when there is a plurality of pieces of radiographing order information for one patient (subject), a plurality of radiographic image takings based on the plurality of radiographing order information are continuously performed using the above-described radiographic image detector. Can be executed. For example, when three pieces of imaging order information corresponding to each of the upright shooting, the upright shooting, and the portable shooting are registered in this order for one patient, the upright type is displayed in the shooting room. It is possible to continuously perform the standing position photographing using the bucky device, the standing photographing using the standing type bucky device, and the portable photographing not using the bucky device. Image data acquired by radiographic imaging of each imaging method is transmitted from the radiographic image detector to the console in the order of imaging, and the console executes processing for associating with each imaging order information in the order in which the image data is received. .

For example, as described above, when the shooting order information corresponding to the standing shooting, the shooting order information corresponding to the standing shooting, and the shooting order information corresponding to the portable shooting are registered in this order, When radiographic imaging is performed in the imaging room in the order corresponding to the registration order of imaging order information (in the order of standing imaging → standing imaging → portable imaging), each imaging order information and each imaging method are displayed on the console. Are associated with each other correctly.

However, operators such as radiologists and doctors often leave the radiation image detector in the photographing room as it is after the radiation image capturing. For example, if standing radiography is performed using a standing-type bucky device at the end of the previous radiographic imaging for another patient, the radiological image detector remains loaded in the standing-type bucky device. Is likely to be.

In such a case, for the next patient, even if the three pieces of imaging order information corresponding to each of the standing position photographing, the standing position photographing, and the portable photographing are registered in this order, the standing position photographing is performed first. Is less burdensome on the operator than performing radiographic imaging in the order corresponding to the registration order of radiographing order information, and the time required for radiographic imaging can be shortened. In other words, when performing radiographic imaging in accordance with the registration order of radiographing order information, an operator is loaded into the standing-type bucky device prior to radiographic imaging in order to perform radiographic imaging first. Therefore, it is necessary to take out the radiation image detector that has been taken out once and load it again in the position-type bucky device, which places a heavy burden on the operator and takes time to prepare for imaging and is not efficient.

However, if a plurality of radiographic images are taken in the order different from the order of registration of the imaging order information in the imaging room, the respective image data and imaging order information are not correctly associated with each other in the console. The operator must look at the image display of each image data on the console and perform the work of correcting the correspondence between the image data and the shooting order information, which increases the work load on the operator. was there.

The present invention has been made to solve the above-described problem, and radiographic imaging capable of accurately associating image data obtained by radiographic imaging with a plurality of imaging methods and imaging order information. Is to provide a system.

In order to solve the above-described problem, the radiographic imaging system of the present invention includes:
A portable radiation image detector having a power supply means and a communication means;
A console capable of communicating with the portable radiation image detector;
With
The portable radiation image detector is
Attitude detection means for detecting the attitude of the portable radiographic image detector;
Notification means for notifying the console of the attitude detection result by the attitude detection means;
Storage means for storing image data acquired by radiographic imaging;
Transmitting means for transmitting the image data acquired by radiographic imaging to the console;
With
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the posture detection result notified by the notification unit and the imaging method information included in the imaging order information registered by the registration unit, and the registration The imaging order information registered by the means is associated with the imaging order information.

Moreover, the radiographic imaging system of the present invention is
A portable radiation image detector having a power supply means and a communication means;
At least one bucky device capable of being loaded with the portable radiographic image detector;
A console capable of communicating with the bucky device and the portable radiation image detector;
With
The bucky device is
Loading detection means for detecting whether or not the portable radiographic image detector is loaded;
Notification means for notifying the console of the result of detection of loading by the loading detection means;
With
The portable radiation image detector is
Storage means for storing image data acquired by radiographic imaging;
A transmission means for transmitting the image data acquired by radiographic imaging to the console;
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the loading detection result notified from the portable radiographic image detector and the imaging method information included in the imaging order information registered by the registration unit. And the imaging order information registered by the registration means.

Moreover, the radiographic imaging system of the present invention is
A radiation generator for emitting radiation;
A portable radiation image detector having a power supply means and a communication means;
A console communicable with the radiation generator and the portable radiation image detector;
Position control means for controlling the position of the radiation generator;
With
The portable radiation image detector is
Storage means for storing image data acquired by radiographic imaging;
A transmission means for transmitting the image data acquired by radiographic imaging to the console;
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the position of the radiation generating device controlled by the position control unit and the imaging method information included in the imaging order information registered by the registration unit; The imaging order information registered by the registration unit is associated with the imaging order information.

According to the radiographic imaging system of the system of the present invention, in the console, the posture detection result notified by the portable radiographic image detector, the loading detection result notified by the bucky device, or the position of the radiation generator, and registration Based on the imaging method information included in the acquired imaging order information, the image data transmitted from the portable radiation image detector is associated with the registered imaging order information. Therefore, even when radiographic imaging in a plurality of imaging methods is executed in a different order from the order in which the imaging order information is registered, image data acquired by radiographic imaging in each imaging method at the console And shooting order information can be accurately associated with each other.

1 is a diagram illustrating an overall configuration of a radiographic image capturing system according to a first embodiment. It is a perspective view which shows the external appearance structure of a portable radiographic image detector. It is a block diagram which shows the functional structure of a portable radiographic image detector. It is a figure which shows an example of the attitude | position detection information which concerns on 1st Embodiment. FIG. 5A shows a case where the radiological image detector is loaded in a vertical vertical direction on the standing-type bucky device, and FIG. 5B shows a case where the radiographic image detector is loaded in a vertical horizontal direction on the vertical-type bucky device. It is a figure for demonstrating. FIG. 6A shows a case where the radiological image detector is loaded horizontally on the buckle-type bucky device, and FIG. 6B shows a case where the radiographic image detector is loaded horizontally on the buckle-type bucky device. It is a figure for demonstrating. It is a figure for demonstrating the case where a radiographic image detector is used in the state inclined diagonally, without being loaded in a Bucky apparatus. It is a block diagram which shows the functional structure of the console which concerns on 1st Embodiment. It is a figure which shows an example of imaging | photography order information. It is FIG. 1 of the flowchart which shows an example of the process sequence in the radiographic image system which concerns on 1st Embodiment. It is FIG. 2 of the flowchart which shows an example of the process sequence in the radiographic image system which concerns on 1st Embodiment. It is an example of the selection screen of imaging | photography order information displayed on the display means of a console. It is an example of the registered imaging order information. It is an example of imaging | photography order information matched with the imaging | photography order identified based on the attitude | position detection result. It is a figure which shows the whole structure of the radiographic imaging system which concerns on a modification. It is a block diagram which shows the functional structure of the console which concerns on a modification. It is an example of the registered imaging order information. It is a figure which shows the whole structure of the radiographic image system which concerns on 2nd Embodiment. It is a block diagram which shows the functional structure of the console which concerns on 2nd Embodiment. It is an example of a Bucky device provided with a loading detection means. It is a figure which shows the whole structure of the radiographic image system which concerns on 3rd Embodiment. It is a block diagram which shows the functional structure of the console which concerns on 3rd Embodiment.

[First Embodiment]
Hereinafter, a first embodiment of a radiographic imaging system according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following illustrated examples.

The radiographic imaging system 1 according to the first embodiment is a system that assumes radiographic imaging performed in a hospital or a clinic. For example, as shown in FIG. An imaging room R1 that captures an image of a subject (a patient's imaging target region), and a radiological image acquired by controlling radiation or irradiating the radiation to a subject by a radiologist or doctor (hereinafter referred to as an operator). Dispersed and arranged in the front chamber R2 for processing and the like.

In the present embodiment, a bucky device 3 that can be loaded with a portable radiation image detector 2 (hereinafter simply referred to as a radiation image detector 2) in the imaging room R1, a radiation generator 4 that irradiates a subject with radiation, and communication. A wireless access point 5 (base station) or the like for relaying the communication is provided.

Further, the front chamber R2 is provided with a tag reader 6 for detecting a tag, which will be described later, incorporated in the radiation image detector 2, a console 7 for controlling the entire radiation image capturing system 1, and the like.

Hereinafter, each of the bucky device 3, the radiation generation device 4, the radiation image detector 2, the wireless access point 5, the tag reader 6, and the console 7 will be described in this order.

(Bucky device)
In the present embodiment, as the bucky device 3, a standing-type bucky device 3a for standing-up shooting and a lying-up type bucky device 3b for standing-up shooting are provided. Each of these

bucky devices

3a and 3b is provided with a cassette holding unit 31 for holding the radiation image detector 2 in a predetermined position. The radiographic image detector 2 is loaded into the cassette holding unit 31, and the radiation is detected. An image can be taken.

This Bucky device 3 is configured so that it can be loaded with a CR cassette or FPD cassette (radiation image detector 2) having dimensions conforming to the JIS standard for a conventional screen / film cassette. Therefore, in the present embodiment, not only the radiographic image detector 2 having dimensions conforming to the JIS standard but also radiographic imaging can be performed by bringing the CR cassette into the imaging room R1.

In the standing-type bucky device 3a and the recumbent-type bucky device 3b, for example, it is possible to appropriately adjust the position of the device itself or the height of the cassette holding portion 31 with respect to the device body, etc. It is the same as a known Bucky device.

Further, when the radiographic image detector 2 is loaded in the bucky device 3, power is supplied from the bucky device 3 to the radiographic image detector 2 via a repeater or the like, or the console 7 is connected via the bucky device 3. Alternatively, image data or the like can be transmitted.

(Radiation generator)
The imaging room R1 is provided with at least one radiation generator 4 including a radiation source that irradiates the subject with radiation. In the present embodiment, the stationary radiation generator 4a that is also used as the standing-up type bucky device 3a for standing-up imaging and the upright-type bucky device 3b for standing-up imaging is not associated with the bucky device 3. Two radiation generators 4 are arranged, including a portable radiation generator 4b for portable imaging. This portable radiation generator 4b can be carried anywhere in the photographing room R1, and can irradiate radiation in any direction.

In addition, the structure which provides separately the radiation generator 4 only for the standing position imaging | photography corresponding to the standing position type | mold Bucky apparatus 3a, and the radiation generation apparatus 4 only for the position position imaging | photography corresponding to the position type | mold bucky apparatus 3b. It is also good. Further, the portable radiation generator 4b may not be provided. In this case, portable imaging can be performed using the radiation generator 4 for supine imaging.

Each of the fixed radiation generation apparatus 4a and the portable radiation generation apparatus 4b includes a radiation source such as an X-ray tube connected to an operation console 41 to be described later, and the radiation source has a voltage when a high voltage is applied. It is designed to emit radiation at a dose corresponding to Each radiation source is provided with a diaphragm (not shown) that can be opened and closed.

In the present embodiment, the radiation source of the stationary radiation generator 4a that is also used as the standing-type bucky device 3a and the recumbent-type bucky device 3b is suspended from the ceiling of the imaging room R1, for example. At the time of imaging, it is activated based on an instruction from an operation console 41 to be described later, and is moved to a predetermined position (position facing the radiation image detector 2) according to each imaging by a moving means (not shown). The direction is adjusted so that the irradiation direction faces a predetermined direction.

The console 41 includes a computer having a general-purpose CPU (Central Processing Unit), a computer having a dedicated processor, and the like. The console 41 is connected to each of the fixed radiation generating apparatus 4a and the portable radiation generating apparatus 4b by a cable or the like, and is connected to the console 7 via a cable or the like. Then, the console 41 acquires imaging part information, irradiation conditions of the radiation generator 4 and the like from the console 7, and adjusts the position of the radiation generator 4, and the radiation generator 4 based on an instruction from the console 7. Adjustment of radiation exposure dose and adjustment of diaphragm of radiation generator.

(Radiation image detector)
As shown in FIG. 2, the radiation image detector 2 is configured as a cassette-type portable radiation image detector in which a radiation detection element such as a photodiode (not shown), a scintillator, and the like are housed in a housing 21.

2 shows a case where the casing 21 is formed of a front member 21a and a back member 21b. In addition, the casing 21 may be formed in a cylindrical monocoque shape. Is possible. The radiation image detector of the present invention is not limited to the so-called indirect radiation image detector 2, and besides that, it directly detects the irradiated radiation with a radiation detection element without using a scintillator. Various types of radiation image detectors 2 such as a direct type radiation image detector 2 can be used.

Further, as shown in FIG. 3, a battery 22 (power supply means) for supplying power to each member of the radiation image detector 2 is built in the housing 21 of the radiation image detector 2. A lid member 23 that is opened and closed for replacement of the battery 22 built in the housing 21 is provided on a side surface portion of the housing 21 of the radiation image detector 2. An antenna device 24 is embedded in a side surface portion of the lid member 23 as a communication means for the radiation image detector 2 to transmit / receive information to / from the outside via the wireless access point 5. The radiological image detector 2 is configured to be able to perform transmission of image data and transmission / reception of various signals to / from the console 7 by the antenna device 24 by a wireless method.

It should be noted that the transmission of image data to the console 7 may be configured such that, for example, the radiation image detector 2 is brought into the front room R2 and connected to the console 7 by wire connection.

Further, as described above, when the radiographic image detector 2 is loaded in the bucky device 3, power is not supplied from the battery 22 but is supplied from the bucky device 3 via a repeater or the like. In addition, the wireless communication using the antenna device 24 may be switched to the wired communication via the bucky device 3.

Further, the side surface portion of the radiation image detector 2 is further configured with, for example, an LED or the like, and an indicator 25 for displaying the charging status of the battery 22 and various operation statuses, and the power source of the radiation image detector 2 are connected to the power source. A power switch 26 is provided for switching between the on state and the power off state.

Further, a tag (not shown) is built in the radiation image detector 2. In the present embodiment, a so-called RFID (Radio Frequency IDentification) tag is used as a tag, and a control circuit that controls each part of the tag and a storage unit that stores unique information of the radiation image detector 2 are compact. Built in. This unique information includes, for example, a cassette ID as identification information assigned to the radiation image detector 2, scintillator type information, size information, resolution, and the like. When the radiographic image detector 2 receives the radio wave transmitted from the tag reader 6 via the antenna device 24, the radiographic image detector 2 transmits the unique information stored in the tag storage unit to the tag reader 6 via the antenna device 24. It is configured.

In the present embodiment, the radiation image detector 2 has a size conforming to JIS Z 4905 (the corresponding international standard is IEC 60406) in a conventional screen / film cassette. That is, the thickness in the radiation incident direction is within a range of 15 mm + 1 mm to 15 mm-2 mm, and is 8 inches × 10 inches, 10 inches × 12 inches, 11 inches × 14 inches, 14 inches × 14 inches, 14 inches × 17 inches. (Half cut size) etc. are prepared.

Thus, since the radiation image detector 2 is formed in conformity with the JIS standard relating to the screen / film cassette, the existing Bucky device capable of loading the CR cassette formed in conformity with the above-mentioned JIS standard. 3 (standing-up type bucky device 3a, upright-type bucky device 3b) can be used.

Further, in the present embodiment, the radiation image detector 2 can be used by being mounted on the standing-type bucky device 3a or the recumbent-type bucky device 3b, or can be used by directly facing the subject. It is configured.

In portable radiography using the radiographic image detector 2 alone, the radiographic image detector 2 is placed on a support stand C (see FIG. 7) provided in the radiographing room R1, for example, in a single state where the radiographic image detector 2 is not loaded in the bucky device 3. Then, the patient's hand as the subject is placed on the radiation incident surface P (see FIG. 2), or is inserted between the patient's waist or legs lying on the bed and the bed, for example. Then, radiographic imaging is performed by irradiating radiation from the portable radiation generator 4b.

That is, in this embodiment, the single radiographic image detector 2 is used to mount the standing-up type bucky device 3a for use in the standing position, to use the standing-up type bucky device 3b for the standing position shooting, and the bucky. Radiation image capturing can be performed by three imaging methods, ie, portable imaging using the radiation image detector 2 alone without using the apparatus 3.

Furthermore, the radiation image detector 2 includes a control means 27, a storage means 28, and an attitude detection sensor 29 as shown in FIG.

The control means 27 is composed of, for example, a general-purpose CPU, a ROM (Read Only Memory), and a RAM (Random Access Memory) (all not shown). The control means 27 reads out a predetermined program stored in the ROM, expands it in the work area of the RAM, and controls various operations of the radiation image detector 2 by the CPU executing various processes according to the program. To do.

The storage means 28 has a storage area capable of temporarily storing a plurality of image data acquired by a plurality of radiographic imaging. Then, by continuously irradiating the subject a plurality of times and recording the image data obtained by the radiation irradiation in the storage means 28 each time, continuous shooting and moving image shooting are possible. Yes.

The posture detection sensor 29 detects the posture of the radiation image detector 2 itself as posture detection means. The posture detection sensor 29 is provided in the radiation image detector 2 at a position (outside the effective image area) that does not overlap the radiation detection element or the like so as not to prevent radiation detection by a radiation detection element (not shown). For example, as illustrated in FIG. 2, in the radiation image detector 2, the posture detection sensor 29 is provided at a corner in the housing 21.

In the present embodiment, as the posture detection sensor 29, for example, three axes that detect acceleration (dynamic acceleration) acting on the radiation image detector 2 in the three axis directions of the X axis, the Y axis, and the Z axis that are orthogonal to each other. An acceleration sensor is used. The voltage value indicating the acceleration in the X-axis, Y-axis, and Z-axis directions detected by the attitude detection sensor 29 is output to the control means 27, and the radiation image detector 2 Based on the detection signal from the posture detection sensor 29, the control means 27 monitors whether or not its posture continuously changes for a predetermined time. When the control unit 27 determines that the posture of the radiation image detector 2 itself does not change continuously for a predetermined time, that is, the radiation image detector 2 is held in the same posture for a predetermined time continuously. In this case, as a notification means, the attitude detection result indicating the attitude is notified to the console 7 via the antenna device 24 and the wireless access point 5.

More specifically, the control means 27 of the radiation image detector 2 stores the history of acceleration data (voltage values) in the X-axis, Y-axis, and Z-axis directions detected by the attitude detection sensor 29. The voltage value in each axis direction is monitored while being stored, and it is determined whether or not the outputs in the three axis directions are continuously zero for a predetermined time. Then, the control means 27 determines that the radiation image detector 2 is in a stationary state where it is not currently moving in any direction when the voltage values in the three-axis directions are continuously 0 for a predetermined time, Reference is made to the voltage values in the three-axis directions of the X-axis, Y-axis, and Z-axis detected immediately before each voltage value in the three-axis direction becomes zero.

Here, as shown in FIG. 4, a correspondence relationship between the voltage values in the three-axis directions output from the posture detection sensor 29 and the posture of the radiation image detector 2 is stored in the storage unit 28 in advance as posture detection information. The control means 27 refers to the posture detection information of FIG. 4 and the three-axis directions of the X axis, the Y axis, and the Z axis detected immediately before each voltage value in the three axis directions becomes zero. Based on these voltage values, the posture of the radiation image detector 2 is specified from “vertical (vertical)”, “vertical (horizontal)”, “horizontal”, and “oblique”. A posture detection result indicating the posture (vertical (vertical)) / vertical (horizontal) / horizontal / oblique) of the radiation image detector 2 identified based on the detection signal from the posture detection sensor 29 is transmitted via the antenna device 24. To the console 7.

Hereinafter, a method for determining the posture of the radiation image detector 2 based on the posture detection information shown in FIG. 4 will be described in detail. Here, as shown in FIG. 2 and the like, the X axis is taken in the long side direction of the radiation image detector 2, the Y axis is taken in the short side direction, and the Z axis is taken in the thickness direction.

For example, as shown in FIG. 5 (a), in the case of performing portrait shooting in the standing position, that is, when the radiation image detector 2 is loaded in the vertical position on the standing-type bucky device 3a, Immediately before, the movement of the loaded radiation image detector 2 in the Y-axis direction is stopped, so that acceleration occurs only in the Y-axis direction. Therefore, the absolute value | X | of the output in the X-axis direction of the posture detection sensor 29 is almost 0, the absolute value | Y | of the output in the Y-axis direction is a significant positive value, and the absolute value | Z of the output in the Z-axis direction | Is almost zero.

Therefore, in the present embodiment, as shown in FIG. 4, a predetermined value a is set as a threshold value of the voltage value in the triaxial direction output from the attitude detection sensor 29, and the control unit 27 sets each voltage value in the triaxial direction. If only the absolute value | Y | of the output in the Y-axis direction is equal to or greater than the predetermined value a immediately before 0 becomes 0 (that is, if | X | ≈0, | Y | ≧ a, | Z | ≈0) ), The posture of the radiation image detector 2 is determined to be “vertical (vertical)”.

Further, as shown in FIG. 5B, in the case of performing landscape photography in the standing position, that is, in the case where the radiation image detector 2 is loaded vertically in the standing-type bucky device 3a, the same as described above. Immediately before loading, acceleration occurs only in the X-axis direction, the absolute value | X | of the posture detection sensor 29 in the X-axis direction is a significant positive value, and the absolute value of the output in the Y-axis direction | Y | Is almost 0, and the absolute value | Z | of the output in the Z-axis direction is almost 0.

Therefore, immediately before each voltage value in the three-axis direction becomes 0, the control means 27 determines that only the absolute value | X | of the output in the X-axis direction is equal to or greater than the predetermined value a (that is, as shown in FIG. 4). , | X | ≧ a, | Y | ≈0, and | Z | ≈0), the posture of the radiation image detector 2 is determined to be “vertical (horizontal)”.

Further, as shown in FIG. 6A, when the portrait-oriented photographing is performed by the lying position method, that is, when the radiation image detector 2 is mounted in the vertically oriented bucky device 3b in the horizontal and vertical direction, As shown in b), when taking a landscape image in the lying position, that is, when the radiation image detector 2 is loaded horizontally in the lying position type bucky device 3b, the radiation image is detected at the time of loading. The container 2 is moved in the Y-axis direction and the X-axis direction, but acceleration is generated only in the Z-axis direction because it is loaded into the cassette holding part 31 of the lying-down type bucky device 3b immediately before loading. Therefore, the absolute value | X | of the posture detection sensor 29 in the X-axis direction is almost 0, the absolute value | Y | in the Y-axis direction is almost 0, and the absolute value | Z | in the Z-axis direction is significant. Positive value.

Therefore, immediately before each voltage value in the three-axis direction becomes zero, the control means 27 is only if the absolute value | Z | of the output in the Z-axis direction is equal to or greater than the predetermined value a (that is, | X | ≈0, If | Y | ≈0 and | Z | ≧ a), the posture of the radiation image detector 2 is determined to be “horizontal”.

Further, as shown in FIG. 7, when performing oblique imaging in a portable manner, that is, the radiation image detector 2 is not mounted on the bucky device 3 but is placed on the support table C as it is, and is obliquely When used in an inclined state, each of the X-axis, Y-axis, and Z-axis detected immediately before the radiation image detector 2 is in a stationary state (that is, each voltage value in the three-axis direction becomes 0). As described above, the absolute value of the output in the axial direction is such that only one of the outputs does not become a positive value, and among each voltage value, the absolute value of the output of two or more axes is a significant positive value. Become.

For example, when the radiation image detector 2 is placed on the tilted support base C as shown in the example of FIG. 7 while being tilted in the X-axis direction, the Y-axis direction, and the Z-axis direction, the posture detection is performed. The absolute value | X | of the output in the X-axis direction of the sensor 29, the absolute value | Y | of the output in the Y-axis direction, and the absolute value | Z | of the output in the Z-axis direction are all significant positive values.

Therefore, as shown in FIG. 4, the control means 27 immediately before each voltage value in the three-axis direction becomes 0, the absolute value | X | of each voltage value in the X-axis direction, the Y-axis direction, and the Z-axis direction, If two or more of | Y | and | Z | are greater than or equal to the predetermined value a, the posture of the radiation image detector 2 is determined to be “oblique”.

In the above description, the absolute values | X |, | Y |, and | Z | of the voltage values in the three axis directions of the X axis, the Y axis, and the Z axis detected by the attitude detection sensor 29 are significant positive values that are not zero. In the above description, it has been described that whether or not a certain value is output using a predetermined value a as a threshold value. However, different absolute values | X |, | Y |, | Z | It can also be configured to set as a threshold value, and the threshold value is appropriately set to an appropriate value.

Further, in the above, the control means 27 detects and detects the posture of the radiation image detector 2 based on the voltage values in the X-axis, Y-axis, and Z-axis directions detected by the posture detection sensor 29. Although the posture is notified to the console 7 as the posture detection result, the posture detection result notified from the radiation image detector 2 to the console 7 is not limited to this.

For example, the control means 27 periodically transmits acceleration data (voltage values) in the X-axis, Y-axis, and Z-axis directions detected by the attitude detection sensor 29 to the console 7 as attitude detection results. The console 7 may be configured to determine whether or not the posture of the radiation image detector 2 is continuously changed for a predetermined time.

Further, in the control means 27, based on the respective voltage values in the respective axial directions output from the posture detection sensor 29, a radiographic image capturing method (for example, standing position shooting (portrait shooting) / standing position shooting (landscape shooting) It is also possible to discriminate (shooting) / posture shooting / portable shooting) and transmit the determined shooting method to the console 7 as a posture detection result.

Further, each voltage value output from the attitude detection sensor 29 is converted into an angle to detect the attitude of the radiation image detector 2 and information on each angle is transmitted to the console 7 as an attitude detection result. Also good.

In the above example, the radiation image detector 2 is in any posture such as vertical (corresponding to standing imaging), horizontal (corresponding to supine imaging), and oblique (corresponding to portable imaging) with respect to the direction of gravity. In addition to determining whether or not the image is present, the arrangement direction (vertical or horizontal) of the detection surface of the radiation image detector 2 in the vertical posture is also determined. The latter is a rotation process (port) at the time of image display on the console 7. It is used to determine whether or not a rate or landscape display is necessary, and detection of the arrangement direction is not necessarily required. That is, the posture detection information transmitted from the radiation image detector 2 to the console 7 is not limited to the above-described information of “vertical (vertical orientation) / vertical (horizontal orientation) / horizontal / oblique”, but “vertical / horizontal / oblique”. It may be only the information.

In the above example, the arrangement direction of the detection surface in the vertical posture of the radiation image detector 2 is determined. However, the arrangement direction of the detection surface in the horizontal posture or the oblique posture may also be determined. .

As described above, the control means 27 of the radiation image detector 2 notifies the console 7 of the attitude detection result detected by the attitude detection sensor 29.

As will be described later, the console 7 selects and controls the radiation generator 4 used for the imaging method corresponding to the posture of the radiation image detector 2 based on the posture detection result acquired from the radiation image detector 2. For example, when the posture of the radiation image detector 2 is a posture (vertical) parallel to the gravitational direction, the stationary radiation generator 4a corresponding to the standing-type bucky device 3a is selected and controlled to detect the radiation image. When an imaging preparation completion signal is acquired from the device 2, radiation irradiation is permitted. When an exposure switch is pressed by an operator such as a radiologist, radiation is emitted.

On the other hand, the control means 27 of the radiation image detector 2 reads out the electric charges generated and accumulated in each radiation detection element by irradiation of radiation, and acquires image data (raw data). Then, pixels (that is, digital data output from each radiation image detection element) are thinned out from the acquired image data (raw data) at a predetermined thinning rate, and the data amount is, for example, 1 / of the original image data (raw data). Thinned-out image data reduced to about 16 is generated. Then, when the thinned image data is generated, the control unit 27 transmits the generated thinned image data to the console 7 in order of photographing in preference to the image data (raw data) that is the source of the thinned image data.

Further, after transmitting the thinned image data, the control means 27 of the radiation image detector 2 transmits the acquired image data (raw data) to the console 7 in the order of imaging.

Here, in this embodiment, every time radiographic imaging is performed, the thinned image data and the image data (raw data) are transmitted to the console 7 in this order. For example, when radiographic imaging is performed three times for one patient, the first thinned image data and the first image data (raw data) are obtained after the first radiographic imaging. It is transmitted to the console 7 in this order, and after the second radiographic image capturing, the second thinned image data and the second image data (raw data) are transmitted to the console 7 in this order, After the third radiographic image capture, the third thinned image data and the third image data (raw data) are transmitted to the console 7 in this order.

It should be noted that a plurality of pieces of image data (raw data) obtained by a plurality of radiographic image captures may be configured to be transmitted together after transmission of each thinned image data by a series of radiographic image captures.

In addition, after the last radiographic image capturing, a plurality of thinned image data and a plurality of image data (raw data) obtained by a series of radiographic image capturing are transmitted in the order of the plurality of thinned image data and the plurality of image data (raw data). It is also good to do.

Further, it is possible to configure so that only the image data (raw data) is transmitted to the console 7 without generating the thinned image data.

In addition, as described above, in the present embodiment, a plurality of image data (thinned image data, image data (raw data)) obtained by a plurality of radiographic image captures for a single patient in the order of imaging. A case of transmission to the console 7 will be described, that is, when radiographic imaging is performed three times for one patient, image data obtained by the first radiographic imaging → second time The image data obtained by radiographic imaging is transmitted in the order of image data obtained by radiographic imaging for the third time.

Note that the transmission order of image data is not limited to such an imaging order (that is, the first-in / first-out system in the storage means 28), and the first-in / last-out system is adopted and obtained by the last radiographic imaging. The image data may be transmitted in order from the received image data. In this case, if the system 7 is notified of which method the image data is transmitted to, the console 7 side can transmit the image data by either the first-in / first-out or first-in / last-out method. Can be dealt with.

As described above, the transmission timing and transmission order of the thinned image data and the image data (raw data) can be set as appropriate, but at any timing and order, the transmission of the thinned image data and the image data (raw data) Whether to perform transmission is determined so that overall efficiency (time reduction) can be achieved in consideration of the movement distance of the operator to the place where the console 7 is arranged (place where the image is confirmed). preferable.

Further, in the present embodiment, the attitude detection result detected by the attitude detection sensor 29 is displayed on the console at the timing when the attitude of the radiographic image detector 2 changes (that is, before transmission of image data obtained by radiographic imaging). 7 will be described. For example, the orientation information of the detection surface in the posture detection result is transmitted along with the thinned-out image data obtained by radiographic imaging or the original image data (raw data). It's also good. The arrangement direction information of the detection surface is used for rotation processing at the time of image display on the console 7 or the like.

(Wireless access point)
The wireless access point 5 relays these communications when the radiological image detector 2 and the console 7 communicate wirelessly. In FIG. 1, the wireless access point 5 is provided in the vicinity of the entrance of the photographing room R <b> 1. Can be provided. The communication between the wireless access point 5 and the console 7 may be wired communication.

(Tag reader)
The tag reader 6 transmits predetermined instruction information on radio waves or the like via a built-in antenna (not shown), and enters or exits the front room R2, that is, the radiographic image detector 2, that is, the radiographing room R1 or the front room R2. The radiation image detector 2 that has entered the range is configured to be detected. Further, the tag reader 6 reads the unique information such as the cassette ID, scintillator type information, size information, and resolution stored in the detected RFID tag of the radiation image detector 2, and transmits the read unique information to the console 7.

(console)
As shown in FIG. 8, the console 7 includes console control means 71, wireless communication means 72, input means 73, display means 74, and storage means 75.

The console control means 71 is composed of, for example, a general-purpose CPU, ROM, RAM, etc. (all not shown), reads a predetermined program stored in the ROM, expands it in the work area of the RAM, and As the CPU executes various processes according to the program, the operation of each part of the console 7 is controlled.

The wireless communication means 72 is for performing wireless communication with the radiation image detector 2 via the wireless access point 5. For example, the wireless communication means 72 receives a posture detection result or image data received from the radiation image detector 2. Do. As described above, the communication between the wireless access point 5 and the console 7 may be a wired system.

The input means 73 is composed of a keyboard, a mouse and the like for inputting various instructions and information, and is used by the operator to input various instructions. Specifically, as will be described later, the input unit 73 registers, as a registration unit, radiographing order information including information on a patient to be radiographic imaged and imaging conditions prior to radiographic imaging. It is operated when.

The display means 74 includes a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), and the like, and displays various information such as an image transmitted from the radiation image detector 2 and imaging order information.

The storage means 75 is composed of a hard disk or the like and stores various information.

More specifically, the storage means 75 stores imaging order information including information on a patient who is a subject of radiographic imaging in the imaging room R1 and imaging conditions. The imaging order information is stored in advance in the storage means 75 in a list format prior to radiographic imaging.

In the present embodiment, as shown in FIG. 9, the imaging order information includes “patient ID” P2, “patient name” P3 “sex” P4, “age” P5, “clinic department” P6 and imaging as patient information. It includes “imaging region” P7, “imaging direction” P8 as conditions, and “imaging method” P9 (imaging method information) related to the radiation image capturing method. Then, “shooting order ID” P1 is automatically assigned to each shooting order information in the order in which the shooting order information is received.

The above-described shooting method information stores whether the shooting method is standing shooting (portrait shooting / landscape shooting), standing shooting or portable shooting. The imaging method information may be any information that can be associated with at least two imaging methods. For example, imaging part information may be used as imaging condition information.

The patient information and the imaging conditions written in the imaging order information are not limited to those described above. For example, the imaging mode, the date of birth of the patient, the number of medical examinations, the radiation dose, whether the patient is fat or thin It can also be configured to include information, and can be set as appropriate. Further, for example, the console 107 can be connected to a HIS (Hospital Information System) or RIS (Radiology Information System) (both not shown) via a network, and imaging order information can be obtained from them. It is.

Further, the storage means 75 has a storage area for storing each image data (decimated image data, raw data) received from the radiation image detector 2 in association with the registered imaging order information. In addition, in one imaging room R1, radiographic imaging for one patient is continuously performed a plurality of times, and the console 7 receives a plurality of image data acquired by radiographic imaging. The received image data for one patient is grouped in units of patients and stored in the storage means 75.

Further, the storage means 75 is a table in which cassette IDs and information such as scintillator type information, size information, and resolution are associated with the radiation image detector 2 that can be used for radiographic imaging in the imaging room R1. Is stored in advance.

As shown in FIG. 1, the console 7 configured as described above is connected to the above-described fixed radiation generator 4 a, portable radiation generator 4 b, tag reader 6, and the like via cables or the like, and wirelessly. Wireless communication can be performed with the radiation image detector 2 existing in the imaging room R through the communication means 72, the wireless access point 5, and the like.

In addition to this, from the console 7, an HIS (Hospital Information System) 8 or RIS (Radiology Information System) 8 which provides the console 7 with imaging order information of the inspection object related to imaging via the network NW. A PACS server 9 that stores the output image data, an imager 10 that records and outputs a radiation image on an image recording medium such as a film based on the image data output from the console 7 are connected.

Here, in a case where one radiographing room R1 continuously executes radiographic image capturing using a plurality of imaging methods for one patient, the radiographic image detector 2 corresponds to each imaging method. Each time the imaging position is set, the radiation image detector 2 notifies the console 7 of a plurality of different posture detection results.

Then, the console control means 71 of the console 7 performs the order of radiographic imaging (imaging order) based on the attitude detection results received from the radiographic image detector 2 in the imaging room R1 and the reception order of the attitude detection results. And the thinned-out image data and image data (raw data) transmitted from the radiation image detector 2 are associated with the imaging order information based on the specified imaging order.

Further, when the console control means 71 of the console 7 receives the posture detection result from the radiation image detector 2, the radiation generator 4 used for an imaging method corresponding to the posture of the radiation image detector 2 via the console 41. Is controlled to move and start according to the imaging method corresponding to the posture of the radiation image detector 2.

Next, the operation of the radiographic imaging system 1 according to the first embodiment will be described with reference to the flowcharts of FIGS. 10 and 11. Hereinafter, a case where only one radiation image detector 2 exists in the imaging room R1 will be described.

Prior to radiographic imaging, the console control means 71 of the console 7 reads out the imaging order information stored in the storage means 75 (or obtains imaging order information from the HIS / RIS 8 via the network) and acquires it. For example, as shown in FIG. 12, it is displayed on the selection screen H1 of the display means 74. As shown in FIG. 12, the selection screen H1 is provided with a shooting order information display field h11 for displaying a list of shooting order information stored in the storage means 107e. Further, on the left side of the radiographing order information display field h11, a selection button h12 for selecting radiographing order information set in the current radiographic imaging is provided corresponding to each radiographing order information. In addition, a determination button h13 and a return button h14 are provided below the shooting order information display field h11.

On the selection screen H1, the operator uses the input means 73 to click the selection button h12 corresponding to the imaging order information of the current radiographic imaging, and further clicks the decision button h13, thereby acquiring imaging order information. Is selected and registered (step S1 in FIG. 10).

At this time, when the operator registers a plurality of pieces of radiographing order information for one patient on the selection screen H1, the plurality of registered radiographing order information includes the current radiation image for the patient. Grouped as shooting order information related to shooting.

FIG. 13 is an example of a table storing a plurality of pieces of imaging order information registered for the patient A. For example, when three pieces of shooting order information of shooting order IDs “001” to “003” are selected on the selection screen H1 in FIG. 12, as shown in FIG. 13, each selected shooting order information is displayed. And stored together with the registration order. In the table of FIG. 13, the shooting order information of the shooting order ID “001” whose shooting method is “upper position” is registered first, and the shooting order of the shooting order ID “002” whose shooting method is “standing”. Information is registered second, and shooting order information of shooting order ID “003” whose shooting method is “portable” is registered third. Note that, in the stage before the execution of radiographic image capturing, as illustrated in FIG. 13, the column of the imaging order corresponding to each registered imaging order information is blank.

When the radiograph imaging order information is registered by the input means 73 of the console 7, the console control means 71 transmits the imaging order information registered on the selection screen H1 to the anterior chamber R2 via a cable or the like. Is transmitted to the operation console 41 arranged in (1).

When the operation of registering the imaging order information on the console 7 is completed, the operator moves from the front room R2 in which the console 7 is arranged to the imaging room R1, and performs imaging such as the radiation image detector 2 and subject setting. Prepare for.

Here, the operator may perform radiographic imaging in a plurality of imaging methods in any order regardless of the registration order of imaging order information.

For example, in the radiographing room R1, the radiographic image detector 2 is left in a state where it is loaded in the standing-type bucky device 3a used at the end of the previous radiographic imaging for another patient. As shown in FIG. 13, even if the imaging order information whose imaging method is “post position” is registered first, the operator places the radiation image detector 2 in the standing-type Bucky device 3a. Standing photography can be performed first with the battery loaded.

Further, for example, when the radiographic image detector 2 is left in the state of being loaded in the supine type bucky device 3b used at the end of the previous radiographic image capturing for another patient, Even if the imaging order information whose imaging method is “standing position” is registered first, the operator places the radiographic image detector 2 in the upright-type bucky device 3b and first takes up the upright imaging. Can be executed.

The control means 27 of the radiological image detector 2 arranged in the radiographing room R1 measures the time during which the detection signal from the posture detection sensor 29 continues, and the detection signal from the posture detection sensor 29 is for a predetermined time. It is determined whether or not there is a continuous change (step S2 in FIG. 10). If the detection signal from the posture detection sensor 29 changes before the predetermined time elapses (that is, any of | X |, | Y |, | Z | is equal to or greater than a predetermined value a; step S2 in FIG. 10). No) continues monitoring.

On the other hand, when it is determined that the detection signal from the posture detection sensor 29 does not continuously change for a predetermined time (that is, | X | ≈0, | Y | ≈0, | Z | ≈0, Step S2; Yes). The control unit 27 refers to the history of detection signals from the posture detection sensor 29 and sets the radiographic image detector 2 in a static state, assuming that the radiographic image detector 2 is set at the imaging position and is in a static state. The X-axis, Y-axis, and Z-axis detection signals immediately before the time point correspond to the correspondence shown in FIG. 4 to detect the posture of the radiation image detector 2 (FIG. 10). Step S3).

Then, when the detected posture of the radiation image detector 2 is different from the previously detected posture, the radiation image detector 2 transmits a posture detection result indicating the detected posture from the antenna device 24 to the console 7. (Step S4 in FIG. 10).

When the console control means 71 of the console 7 receives the attitude detection result transmitted from the radiation image detector 2 by the wireless communication means 72 (step S5 in FIG. 10), the attitude detection result transmitted from the radiation image detector 2 Based on the reception order of the posture detection results and the order of reception of the posture detection results, the imaging order of radiographic imaging in each imaging method is specified (step S6 in FIG. 10), and the specified imaging order of radiographic imaging is stored in the storage means 75.

The specification of the imaging order based on the attitude detection result is repeatedly executed every time the console 7 receives the attitude detection result from the radiation image detector 2.

Here, a method of specifying the imaging order of radiographic imaging in each imaging method based on the attitude detection result received from the radiographic image detector 2 and the order of receiving the attitude detection result in the console 7 will be described.

First, when the console control means 71 receives the posture detection result from the radiographic image detector 2 arranged in the radiographing room R1, the console control means 71 determines the radiographic imaging method based on the received posture detection result.

Specifically, the console control unit 71 sets the radiographic image detector 2 in a vertical orientation to the standing-type bucky device 3a when the posture detection result of the radiographic image detector 2 is “vertical (vertical)”. It is determined that the camera is loaded, and the shooting method is determined as “standing position shooting (portrait shooting)”. If the posture detection result of the radiological image detector 2 is “vertical (horizontal)”, it is determined that the radiographic image detector 2 is loaded sideways in the standing-type bucky device 3a, and the imaging method is used. Is determined as “standing position shooting (landscape shooting)”. Further, when the posture detection result of the radiation image detector 2 is “horizontal”, it is determined that the radiation image detector 2 is loaded in the supine type bucky device 3b, and the photographing method is set to “posture photographing”. Is determined.

Further, when the posture detection result of the radiation image detector 2 is “oblique”, it is determined that the radiation image detector 2 is set at the photographing position for portable photographing, and the photographing method is “portable photographing”. Determine.

As described above, the posture detection information transmitted from the radiation image detector 2 to the console 7 is only information indicating the postures of “vertical”, “horizontal”, and “oblique”, and the vertical or horizontal shooting in the vertical shooting is performed. Such determination (determination of the arrangement direction of the detection surface) may not be performed.

Further, the console 7 determines the imaging method based on the posture detection result, while selecting the radiation generation device 4 corresponding to the imaging method indicated by each posture detection result, and selects the selected radiation generation device 4 according to the imaging method. The imaging order of radiographic imaging in each imaging method is specified based on the order in which posture detection results are received from the radiographic image detector 2, and the specified imaging order is stored in the storage means 75. To remember.

For example, when the console 7 first receives the posture detection result “vertical (vertical)”, next receives the posture detection result “horizontal”, and finally receives the posture detection result “diagonal”, these The radiographic imaging performed first is standing-up imaging (portrait imaging), assuming that radiographic imaging of the imaging method indicated by each attitude detection result has been executed in the order in which the attitude detection results are received. It is specified that the radiographic imaging performed the third time is the vertical imaging, and the radiographic imaging performed third is the portable imaging. The identified shooting order is stored in association with the registered shooting order information.

FIG. 14 is a table in which the imaging order determined based on the posture detection result from the radiation image detector 2 and the reception order thereof is stored in association with the imaging order information illustrated in FIG.

For example, as illustrated in FIG. 13, when three pieces of radiographing order information are registered for the patient A, the radiographic image detector is used in the radiographing room R1 in order for the operator to perform the first standing radiographing. 2 is left in a state in which it is loaded vertically in the standing-type bucky device 3a. At this time, the radiation image detector 2 loaded vertically in the standing-type bucky device 3a is notified to the console 7 that the posture of the radiation image detector 2 is “vertical (vertical)”. The In response to this, the console control means 71 determines that the radiographic imaging method to be executed first is “standing position imaging (portrait imaging)”, and obtains imaging order information whose imaging method is “standing position”. Correspond to “shooting order 1”.

Next, the operator takes out the radiation image detector 2 from the standing-type bucky device 3b and reloads it into the standing-type bucky device 3b in order to execute the lying position photographing. At this time, the radiographic image detector 2 loaded in the supine type bucky device 3b notifies the console 7 that the attitude of the radiographic image detector 2 is “horizontal”. In response to this, the console control means 71 determines that the radiographic imaging method to be executed second is “upside-down imaging”, and sets the imaging order information with the imaging mode “upside-down” as “imaging order 2”. ”And memorize it.

Finally, in order to perform portable imaging, the operator takes out the radiation image detector 2 from the supine type bucky device 3b and sets it at the imaging position for portable imaging. At this time, the radiation image detector 2 arranged at the photographing position for portable photographing notifies the console 7 that the posture of the radiation image detector 2 is “oblique”. In response to this, the console control means 71 determines that the radiographic imaging method executed third is “portable imaging”, and imaging order information whose imaging method is “portable” is “imaging order 3”. Store it in association.

As described above, in the imaging room R1, for example, when radiographic imaging is performed in the order of standing imaging (portrait imaging), supine imaging, and portable imaging, the console 7 transmits from the radiographic image detector 2. Based on the detected posture detection results and the order in which these posture detection results are received, the imaging order of radiographic imaging in each imaging method is specified and stored in association with the imaging order information. Yes.

Further, when the posture of the radiation image detector 2 in the posture detection result notified from the radiation image detector 2 is “vertical”, the console 7 further sets the posture of the radiation image detector 2 to “vertical (vertical)”. Orientation) ”or“ vertical (landscape) ”, it is determined whether the vertical shooting is portrait shooting or landscape shooting, and the determination result is stored.

Next, an operator who has completed preparations for imaging such as the radiation image detector 2 and the setting of the subject operates the operation console 41 arranged in the front room R2, and emits radiation from the radiation generator 4 used for imaging. The radiation image detector 2 is irradiated.

Then, when the radiation irradiated from the radiation generator 4 and transmitted through the imaging region of the patient is converted into an electrical signal and accumulated in each radiation detection element (step S7 in FIG. 10), control of the radiation image detector 2 is performed. The means 27 reads all electrical signals accumulated in each radiation detection element, acquires image data (raw data), and stores it in the storage means 28 (step S8 in FIG. 10). When a plurality of image data is stored in the storage unit 28, each image data is stored in the shooting order.

Next, the control means 27 of the radiation image detector 2 performs various correction processes such as offset / gain correction and defect correction on the image data (raw data) stored in the storage means 28 as necessary.

Subsequently, the control means 27 of the radiation image detector 2 thins out pixels from the image data (raw data) stored in the storage means 28 at a predetermined thinning rate (for example, 1/16), thereby reducing the data amount. The reduced thinned image data is generated (step S9 in FIG. 10), and the generated thinned image data is transmitted to the console 7 via the antenna device 24 and the wireless access point 5 (step S10 in FIG. 10). Note that the processes in steps S2 to S16 are repeatedly executed as many times as the number of registered radiographing order information, and the thinned image data obtained by radiographic image radiography is transmitted to the console 7 in the radiographing order.

That is, for example, when radiographic imaging is performed in the order of standing imaging (portrait imaging), supine imaging, and portable imaging, the first thinned image data after the first standing imaging (vertical imaging) Is transmitted to the console 7, the second thinned image data is transmitted to the console 7 after the second position photographing, and the third thinned image data is transmitted to the console 7 after the third portable photographing. It will be.

Then, as will be described later, an operator such as a radiologist is displayed on the display means 74 of the console 7 based on the thinned image data transmitted from the radiation image detector 2 every time radiographic image capturing is completed. A preview image (thinned-out image) can be visually recognized to determine whether or not re-shooting is necessary.

Next, when receiving the thinned image data from the radiation image detector 2, the console control means 71 of the console 7 associates the received thinned image data with the photographing order information in the photographing order corresponding to the reception order of the thinned image data. (Step S11 in FIG. 11).

That is, for example, the console control means 71 associates the thinned image data received first with the photographing order information associated with “photographing order 1”. The thinned image data received second is associated with the imaging order information associated with “imaging order 2”. The thinned-out image data received third is associated with the imaging order information associated with “imaging order 3”.

For example, as described above, in the imaging room R1, when radiography (vertical photography), supine photography, and portable photography are performed in this order, the radiological image detector 2 applies to the console 7. The thinned image data obtained by standing photographing, the thinned image data obtained by standing photographing, and the thinned image data obtained by portable photographing are transmitted in this order.

Then, the console 7 obtains the thinned-out image data acquired by standing shooting and registered first, and the shooting order information (shooting order 1) of “shooting order 1” in which the shooting method is “standing”. ID “002”). Further, the thinned image data acquired by the saddle position shooting and received secondly is registered first, and the shooting order information of the “shooting order 2” with the shooting method of “upward position” (shooting order ID “001”). ). Also, the thinned image data acquired by portable shooting and received third is the shooting registration information (shooting order ID “003”) of “shooting order 3”, which is registered third and the shooting method is “portable”. Associate.

As described above, the console 7 associates the thinned image data received from the radiation image detector 2 with the photographing order information of the photographing order corresponding to the reception order of the thinned image data, and thus differs from the registration order of the photographing order information. Even when radiographic imaging of each imaging method is executed in order, each imaging order information and each thinned image data are correctly associated with each other.

Next, the console control means 71 of the console 7 causes the display means 74 to display the preview image (thinned image) based on the received thinned image data together with the shooting order information associated by the processing in step S11 (FIG. 11). Step S12).

When the console control unit 71 displays the thinned image data for which the imaging method is determined to be “standing position” on the display unit 74, referring to FIG. The display direction of the thinned image is determined based on which of the images is taken, and the thinned image is rotated by 90 ° and displayed as necessary. As a result, the thinned image data obtained by standing-up imaging in which the radiation image detector 2 is loaded in the standing-type bucky device 3a in the vertical direction is displayed in the vertical direction (portrait), while the radiation image detector 2 is The thinned-out image data obtained by standing-up shooting loaded sideways on the standing-type bucky device 3a is displayed in the horizontal direction (landscape), and the operator can save time and effort for correcting the image display direction. .

Next, the operator looks at the preview image (thinned-out image) displayed on the display means 74 of the console 7 and confirms whether or not re-shooting is necessary and whether it is associated with correct shooting order information. If re-photographing is not required, the input unit 73 is used to instruct transmission of the original image data (raw data) of the thinned image data.

When the input means 73 instructs the console control means 71 to transmit the original image data (raw data) of the thinned image data, the console control means 71 transmits an instruction signal for requesting the transmission of the original image data (raw data) by wireless communication. The thinned image data is transmitted to the radiation image detector 2 that has transmitted the thinned image data via the means 72 and the wireless access point 5 (step S13 in FIG. 11).

When the control means 27 of the radiation image detector 2 receives an instruction signal for requesting transmission of the original image data (raw data) from the console 7, the control means 27 reads the original image data (raw data) from the storage means 28, and the antenna device. 24 and the wireless access point 5 to the console 7 (step S14 in FIG. 11). As described above, the processes in steps S2 to S16 are repeatedly executed for the number of registered radiographing order information, and image data (raw data) obtained by radiographic image radiography is transmitted to the console 7 in the radiographing order. Is done.

That is, for example, when radiographic imaging is performed in the order of standing imaging (portrait imaging), supine imaging, and portable imaging, after sending the thinned image data after the first standing imaging (vertical imaging), The first image data (raw data) is transmitted to the console 7, the second image data (raw data) is transmitted to the console 7 after transmission of the thinned image data after the second position photographing, and the third time. The third image data (raw data) is transmitted to the console 7 after the thinned image data is transmitted after the portable photographing.

In addition, when one radiographic image detector 2 is loaded and used in each imaging apparatus as in the present embodiment, as described above, image data (raw data) obtained by multiple radiographic imaging. May be transmitted collectively after transmission of all the thinned-out image data. In this case, the storage means 75 needs a capacity capable of storing a plurality of image data.

When the console 7 receives the original image data (raw data) from the radiation image detector 2, the imaging order information of the imaging order corresponding to the reception order of the image data (raw data) is converted into the received image data (raw data). (Step S15 in FIG. 11).

That is, the console control means 71, for example, the first received image data (raw data) is similar to the processing at the time of reception of the thinned image data described above, the shooting order information associated with “shooting order 1”. Associate. The second received image data (raw data) is associated with the imaging order information associated with “imaging order 2”. The third received image data (raw data) is associated with the imaging order information associated with “imaging order 3”.

For example, as described above, when radiographic image capturing is performed in the order of standing-up shooting (portrait shooting), supine shooting, and portable shooting in the shooting room R1, the radiographic image detector 2 applies to the console 7. Thus, image data (raw data) obtained by standing photography, image data (raw data) obtained by standing photography, and image data (raw data) obtained by portable photography are transmitted in this order. .

Therefore, in the console 7, the image data (raw data) received from the radiation image detector 2 is associated with the imaging order information of the imaging order corresponding to the reception order of the image data (raw data), thereby performing the standing-up imaging. The acquired image data (raw data) is registered second, and is associated with the imaging order information (imaging order ID “002”) of “imaging order 1” whose imaging method is “standing”, Image data (raw data) acquired by shooting is registered first, and is associated with shooting order information (shooting order ID “001”) of “shooting order 2” whose shooting method is “superposition”. Image data (raw data) acquired by portable shooting is registered third, and shooting order information of “shooting order 3” in which the shooting method is “portable” And thus to be associated with (capturing order ID "003").

Therefore, even when radiographic imaging of each imaging method is executed in an order different from the registration order of imaging order information, each imaging order information and each image data (raw data) are correctly displayed on the console 7. It will be associated.

Further, the console control means 71 of the console 7 performs necessary image processing such as trimming correction on each of the original image data (raw data) associated with the radiographing order information, so that an image for diagnosis as a radiation image is obtained. Is stored in the storage means 28 (step S16 in FIG. 11). The generated image is displayed on the display means 74 or recorded on an image recording medium such as a film by the imager 10.

When the radiographic image detector 2 and the console 7 perform radiographic imaging subsequent to the process of step S16, the process returns to step S2 of FIG. If all radiographic image capturing corresponding to the radiographing order information has been completed, this processing ends.

Further, the console control means 71 of the console 7 displays the thinned image data determined to be in the “standing position” on the display means 74 when the thinned image is displayed, as shown in FIG. The display direction of the thinned image is determined based on whether the vertical shooting is the vertical shooting or the horizontal shooting, and the thinned image is rotated by 90 ° and displayed as necessary. As a result, the thinned image data obtained by standing-up imaging in which the radiation image detector 2 is loaded in the standing-type bucky device 3a in the vertical direction is displayed in the vertical direction (portrait), while the radiation image detector 2 is The thinned-out image data obtained by standing-up shooting loaded sideways on the standing-type bucky device 3a is displayed in the horizontal direction (landscape).

Note that the console 7 similarly outputs a thinned image output direction (based on whether the vertical shooting or the horizontal shooting is used when the diagnostic image is output to an image storage medium such as a film. Vertical (portrait) and horizontal (landscape) can be determined, and the thinned image can be rotated by 90 ° and output as necessary.

As described above, according to the radiographic imaging system 1 of the first embodiment of the present invention, the portable radiographic image detector 2 is provided with the attitude detection sensor 29 (attitude detection means) that detects its own attitude. When radiographic imaging with a plurality of imaging methods for one patient is continuously performed, every time the portable radiographic image detector 2 is set at an imaging position corresponding to each imaging method. The posture detection result by the posture detection sensor 29 is notified to the console 7. Further, the console 7 specifies the imaging order of radiographic imaging in each imaging method in the imaging room R1 based on the posture detection result notified from the radiographic image detector 2, and from the portable radiographic image detector 2, When image data acquired by radiographic imaging in each imaging mode is transmitted to the console 7, it is received in accordance with the radiographic imaging sequence specified based on the attitude detection result notified from the radiographic image detector 2. The obtained image data is associated with each shooting order information.

Therefore, even when radiographic imaging with a plurality of imaging methods is executed in an order different from the order in which the imaging order information is registered, images obtained by radiographic imaging with each imaging method on the console 7 are obtained. Data and shooting order information are accurately associated with each other, and it is necessary for the operator to see the image display of each image data on the console and correct the correspondence between the image data and the shooting order information. This eliminates the burden on the operator.

In addition, since the radiographic image capturing is performed in any order, the image data acquired by each radiographic image capturing and the radiographing order information are accurately associated with each other. Therefore, the order corresponding to the registration order of the radiographing order information Thus, there is no need to execute radiographic image capturing, and radiographic image capturing in each imaging method can be performed in a desired order.

As a result, when the operator starts the series of radiographic image capturing, the radiographic image detector 2 is set at the imaging position corresponding to the imaging method of the imaging order information whose registration order is the second or later. Even in such a case, it is possible to first perform radiographic image capturing corresponding to the imaging order information of the second and subsequent registration orders using the radiographic image detector 2 in the state set at the imaging position. . Accordingly, it is possible to save the operator from having to reset the radiation image detector 2 set at the imaging position corresponding to a certain imaging method to the imaging position corresponding to another imaging method prior to the radiographic image capturing. In addition, the time required for radiographic imaging can be shortened.

In addition, the operator does not need to be aware of the order in which radiographic imaging is performed when radiographic imaging is performed, and this is a very convenient system for the operator.

Further, since the fact that the radiation image detector 2 is set at the photographing position corresponding to each photographing method is detected using the posture detection sensor 29 provided in the radiation image detector 2 itself, It is not necessary to provide the device 3 with a sensor for detecting that the radiographic image detector 2 is loaded, a terminal for communicating with the radiographic image detector 2, and the like. The existing Bucky device 3 can be used as it is without performing the above.

In the above embodiment, the case where only one portable radiographic image detector 2 is present in the radiographing room R1 has been described. However, the present invention provides a plurality of portable radiographic image detectors 2 in the radiographing room R1. It can also be applied to the case where there exists.

In this case, for example, the portable radiographic image detector 2 is configured to be switchable between a radiographable state and a sleep state, and only the portable radiographic image detector 2 in the radiographable state has its own posture. It can be configured to detect.

Further, when there are a plurality of portable radiographic image detectors 2 that have transmitted the attitude detection results to the console 7, the console 7 issues a warning, and the plurality of portable radiographic image detectors 2 are imaged to the operator. It is preferable to inform that it is possible. For example, two posture detection results of “vertical” (corresponding to standing position shooting) and “horizontal” (corresponding to standing position shooting) are transmitted, and the order information of shooting order information is “standing position” and “standing position”. If the portable radiographic image detector 2 that has sent the posture detection result of “horizontal” (corresponding to supine imaging) is shifted to the sleep state, the portable radiographic image detector 2 is set to sleep. When the state is changed, the warning can be terminated and the process can proceed to the next step (photographing step using the standing device).

In addition, it is displayed that two posture detection results of “vertical” (corresponding to standing position imaging) and “horizontal” (corresponding to supine position imaging) have been received, and “vertical” and “ For example, if “vertical” (corresponding to standing-up imaging) is selected by an operator such as a radiographer, the other “horizontal” (corresponding to supine imaging) posture detection result The portable radiographic image detector 2 that has transmitted the above may be configured to transition to the sleep state.

Moreover, although the said embodiment demonstrated the case where the two radiation generators 4b, the fixed radiation generator 4a and the portable radiation generator 4b, were provided, the standing-type bucky device 3a and the supine type bucky device Only the fixed radiation generator 4a corresponding to 3b may be provided, or three or more radiation generators 4 may be provided.

In the above embodiment, the triaxial acceleration sensor that detects the acceleration in the triaxial direction has been described as the posture detection sensor. However, for example, the posture of the radiation image detector 2 is detected by detecting the direction of gravity using the gravity sensor. It is also possible to configure so as to specify.

[Modification]
Next, a modification of the radiographic image capturing system will be described. In the following description, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant descriptions are omitted. Further, only the parts different from the first embodiment will be described, and it is assumed that the configuration is the same as that of the first embodiment unless otherwise specified.

FIG. 15 is a diagram illustrating an overall configuration of a radiographic image system according to a modification, and FIG. 16 is a block diagram illustrating a functional configuration of a console according to the modification.

In addition to the configuration of the radiographic imaging system 1 of the first embodiment described above, the radiographic imaging system 1a of the modified example is further executed at the end of a series of radiographic imaging for a certain patient in the console 7a. The radiographic image capturing method is stored. In the next radiographic imaging for another patient, when a plurality of imaging order information is registered, the registered plurality of imaging orders are executed at the end of the previous radiographic imaging of the patient. The radiographic images can be rearranged based on the radiographic imaging method (hereinafter, the radiographic imaging method executed at the end of the previous radiographic image acquisition is referred to as “final imaging method”).

For example, in the previous radiographic image capturing, when the saddle position photographing is finally performed, the console control unit 71a of the console 7a sets the radiographic image photographing method “the supine position” performed last as the final photographing method. Store in the storage means 75.

Prior to radiographic imaging for another patient B, a plurality of radiographing order information is registered in the console 7a, and the same radiographing method “post position” as the final radiographing method is registered in the registered plural radiographing order information. When the imaging order information is registered, the console control unit 71a assumes that there is a high possibility that the radiographic imaging of the same imaging method as the final imaging method is executed first, and the same imaging method “post position” as the final imaging method. Is stored in association with the shooting order information of “shooting order 1”.

FIG. 17 is an example of a table that stores a plurality of pieces of radiographing order information registered for patient B following a series of radiographic imaging for another patient. For example, when two pieces of shooting order information of shooting order IDs “004” and “005” are selected on the selection screen H1 in FIG. 12, the two pieces of selected shooting order information as illustrated in FIG. Are stored together with the registration order.

In the table shown in FIG. 17, the shooting order information of the shooting order ID “004” whose shooting method is “standing” is registered first, and shooting of the shooting order ID “005” whose shooting method is “recumbent” is recorded. Order information is registered second.

Further, the console control means 71a of the console 7a detects the imaging order information of the same imaging method as the final imaging method “post position” in the previous radiographic imaging for another patient from the imaging order information of FIG. . Then, when it is determined that the shooting order information of the shooting order ID “005” is shooting order information of the same shooting method as the final shooting method “post position”, as shown in FIG. 17, the shooting of the shooting order ID “005” is taken. The order information is stored in association with “shooting order 1”. Also, as shown in FIG. 17, when there are two registered shooting order information, when the shooting order of one shooting order information (shooting order ID “005”) is determined, one remaining shooting is automatically performed. “Shooting order 2” is associated with the shooting order information of the order ID “004”.

Although illustration is omitted, if three or more pieces of imaging order information are registered, the imaging order information associated with the imaging order 1 cannot be estimated since the imaging order of the second and subsequent radiographic image capturing cannot be estimated. In other cases, the shooting order column is blank.

When the operator performs radiographic imaging in the imaging room R1, every time the radiographic image detector 2 is set at an imaging position corresponding to each imaging method, as in the radiographic imaging system 1 of the first embodiment. Further, the attitude of the radiation image detector 2 is detected based on the detection signals in the three-axis directions by the attitude detection sensor 29, and an attitude detection result indicating the detected attitude is notified to the console 7a.

Then, the console 7a specifies the imaging order of radiographic imaging in each imaging method in the imaging room R1 based on the attitude detection result notified from the radiographic image detector 2. Then, when there is an imaging order specified in advance based on the final imaging method in the previous radiographic imaging for another patient, the imaging order specified based on the final imaging method, and the radiographic image detector 2 Whether or not the imaging order specified based on the posture detection result notified from is coincident, and if both do not coincide, the image is identified based on the posture detection result notified from the radiation image detector 2 The shooting order is stored in association with the shooting order information.

When the thinned image data and the image data (raw data) acquired by radiographic imaging in each imaging method are transmitted from the radiographic image detector 2 to the console 7a, the console control unit 71a The data is associated with the imaging order information in the imaging order corresponding to the reception order of the image data.

For example, in the radiographing room R1, when radiographic imaging is performed in the order of supine imaging and standing imaging (horizontal imaging) for the patient B, the radiographic image is detected from the radiographic image detector 2 to the console 7a. A posture detection result indicating that the posture of the detector 2 is “horizontal” and a posture detection result indicating that the posture of the radiation image detector 2 is “vertical (horizontal)” are notified in this order.

In response to this, the console control means 71a sets the radiographic imaging method to be executed first based on the attitude detection result indicating that the attitude of the radiographic image detector 2 is “horizontal”. It is determined whether or not the shooting order information whose shooting method is “posture” is associated with “shooting order 1”. Further, based on the attitude detection result indicating that the attitude of the radiation image detector 2 is “vertical (horizontal)”, the radiographic imaging method to be executed second is determined as “standing (horizontal)”. Then, it is confirmed whether or not the shooting order information whose shooting method is “standing position” is associated with “shooting order 2”, and the fact that the shooting is landscape shooting is stored.

After that, the thinned image data and image data (raw data) obtained by the upright photographing and the thinned image data and image data obtained by the standing photographing (horizontal photographing) from the radiation image detector 2 to the console 7a. (Raw data) is transmitted in the order of imaging, the console control unit 71a converts the image data (decimated image data, raw data) received from the radiation image detector 2 into an imaging order corresponding to the reception order of the image data. Correlate with the shooting order information.

That is, the console control means 71a uses the first received image data obtained from the supine shooting as the shooting order information (shooting order ID “005”) of “shooting order 1” whose shooting method is “post position”. The image data obtained by the second standing position photographing (horizontal photographing) is associated with the photographing order information of the “photographing order 2” in which the photographing method is “standing position” (the photographing order ID “004”). Correlate with.

As described above, in the radiographic imaging system 1a according to the modification, the imaging order of radiographic imaging in each imaging method is specified based on the radiographic imaging method executed at the end of the previous radiographic imaging. Thus, even when radiographic imaging of each imaging method is executed in an order different from the registration order of imaging order information, each image data and each imaging order information are correctly associated with each other in the console 7a. It becomes.

Further, by specifying the imaging order of radiographic imaging in each imaging method based on the attitude detection result transmitted from the radiographic image detector 2, the actual radiographic imaging is performed at the end of the previous radiographic imaging. It is possible to confirm whether or not the imaging sequence specified based on the radiographic imaging method that has been executed is performed, and to associate the imaging order information with the image data more accurately.

Note that, in the above, based on the posture detection result transmitted from the radiation image detector 2, whether or not the actual radiation image capturing has been performed in the imaging order specified based on the final imaging method in the previous radiation image capturing. However, the imaging sequence confirmation processing based on the posture detection result transmitted from the radiation image detector 2 may not be performed.

Further, based on the imaging method information of the imaging order information associated with the image data acquired last in the previous radiographic imaging, the imaging method that is likely to be executed first for the next patient is specified. It is also possible to configure as described above.

[Second Embodiment]
In the first embodiment described above, the radiation image detector 2 is provided with the posture detection sensor 29 that detects the posture of the radiation image detector 2 itself, and in the console 7, each position is detected based on the posture detected by the posture detection sensor 29. The case where the imaging order of radiographic imaging in the imaging system is specified has been described. However, instead of providing the posture detection sensor 29 in the radiation image detector 2, a means for detecting that the radiation image detector 2 is loaded in the bucky device 3 for loading the radiation image detector 2 is provided. By specifying the bucky device 3 used for radiographic imaging, it is also possible to specify the radiographic imaging sequence in each imaging method. Hereinafter, this case will be described in the second embodiment of the present invention.

In the following description, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant descriptions are omitted. In the second embodiment, only the parts different from the first embodiment will be described, and unless otherwise specified, the second embodiment has the same configuration as the first embodiment.

FIG. 18 is a diagram illustrating an overall configuration of a radiographic image system according to the second embodiment, and FIG. 19 is a block diagram illustrating a functional configuration of a console according to the second embodiment.

In the radiographic image capturing system 1b according to the second embodiment, as in the first embodiment, as a bucky device 3A in the imaging room R1, a standing-type bucky device 3a1 for standing position imaging and a supine position imaging function are used. And a recumbent bucky device 3b1. Each of these bucky devices 3a1 and 3b1 is provided with a cassette holding unit 31 for holding the radiation image detector 2 in a predetermined position, and the radiographic image detector 2 is loaded into the cassette holding unit 31. Radiation imaging can be performed.

As shown in FIG. 20, loading detection as loading detecting means for detecting that the radiation image detector 2 is loaded inside the cassette holding portion 31 of the standing-type bucky device 3a1 and the standing-type bucky device 3b1. A switch 32 is formed. The loading detection switch 32 physically detects that the radiation image detector 2 has been loaded by being pressed by the radiation image detector 2 when the radiation image detector 2 is normally loaded in the cassette holding unit 31. .

When the bucky device 3 </ b> A detects that the radiation image detector 2 is loaded in the cassette holding unit 31 based on a signal from the loading detection switch 32, the radiation image detector 2 is connected via the wireless access point 5. The console 7 is notified of the result of loading detection indicating that is loaded. At this time, the standing-type bucky device 3a1 and the recumbent-type bucky device 3b1 transmit ID information assigned to the loading detection result with the attached information.

Further, in the radiographing room R1, as the radiation generating device 4, a standing-type bucky device 3a1 for standing-up imaging and a fixed-type radiation generating device that is also used as a standing-type bucky device 3b1 for standing-up imaging are provided. Yes.

As shown in FIG. 19, the console 7b includes console control means 71b, wireless communication means 72, input means 73, display means 74, and storage means 75.

The console control means 71b is composed of, for example, a general-purpose CPU, ROM, RAM, etc. (all not shown), reads a predetermined program stored in the ROM, expands it in the work area of the RAM, and The CPU executes various processes according to the program to control the operation of each part of the console 7b.

As shown in FIG. 18, the radiation generator 4 and the tag reader 6 are connected to the console 7b via cables and the like, and in the imaging room R via the wireless communication means 72 and the wireless access point 5 and the like. Wireless communication can be performed with the radiation image detector 2 existing in the network.

The console 7b is connected to the standing-type bucky device 3a1 and the standing-type bucky device 3b1 via a cable or the like, and is transmitted from the standing-type bucky device 3a1 and the standing-type bucky device 3b1. The loading detection result is received. Note that the communication between the standing-type bucky device 3a1 and the recumbent-type bucky device 3b1 and the console 7b may be wireless communication.

Here, in the case where one patient's subject is subjected to standing-up imaging and supine imaging continuously in one radiographing room R1, the radiological image detector 2 is placed in the upright-type bucky device 3a1 or 臥. Each time it is loaded into the position type bucky device 3b1, the load detection result indicating that the radiation image detector 2 has been loaded is notified to the console 7 from the bucky device 3A that has detected the loading of the radiation image detector 2. The Rukoto.

Then, the console control means 71b of the console 7b establishes the Bucky device loaded with the radiation image detector 2 based on the ID information attached to the loading detection result received from the Bucky device 3A in the photographing room R1. The photographing method is specified by discriminating between the position-type Bucky device 3a1 and the position-type Bucky device 3b1, and the standing position photographing and the standing position photographing are executed based on the receiving order of the posture detection results. Specified order (shooting order). Based on the specified imaging order, the thinned image data and image data (raw data) transmitted from the radiation image detector 2 are associated with the imaging order information.

For example, prior to radiographic imaging, when two imaging order information items “006” and “007” for the patient C are selected on the selection screen H1 in FIG. Two pieces of imaging order information are stored together with the registration order. Here, for example, the shooting order information of the shooting order ID “006” having the shooting method “standing position” is registered first, and the shooting order information of the shooting order ID “007” having the shooting method “standing position” is registered. Is registered second.

In the radiographing room R1, for example, when radiographic imaging is performed on the patient C in the order of standing imaging and supine imaging, the operator first sets the radiographic image detector 2 to the standing-type bucky device. Load 3a1. Then, a loading detection result indicating that the radiation image detector 2 is loaded is notified from the standing-type bucky device 3a1 to the console 7b. When the standing position photographing is completed, the operator takes out the radiation image detector 2 from the standing position bucky device 3a1 and loads the radiation image detector 2 into the standing position bucky device 3b1. Then, the loading detection result indicating that the radiation image detector 2 is loaded is notified from the supine type bucky device 3b1 to the console 7b.

In response to this, the console control means 71b is a standing-up type bucky device 3a1 in which the bucky device used for photographing is based on the loading detection result received from the standing-up type bucky device 3a1 and the ID information. Recognize that. As a result, the first radiographic imaging method to be executed is determined as “standing position”, and the imaging order information (imaging order ID “007”) whose imaging method is “standing position” is set as “imaging order 1”. Associate. Further, based on the loading detection result received from the recumbent bucky device 3b1 and the ID information, it is recognized that the bucky device used for photographing is the recumbent recumbent bucky device 3b1. As a result, the radiographic image capturing method to be executed second is determined to be “posture”, and the radiographing order information (photographing order ID “006”) having the radiographing method “prone” is set to “imaging order 2” Associate.

Thereafter, the thinned image data and image data (raw data) obtained by standing imaging and the thinned image data and image data (raw data) obtained by standing imaging from the radiation image detector 2 to the console 7b. Are transmitted in the imaging order, the console control unit 71b captures the image data (decimated image data, raw data) received from the radiation image detector 2 in the imaging order corresponding to the reception order of the image data. Correlate with.

That is, the console control means 71b captures the imaging order information (imaging order 1) of the “imaging order 1” in which the image data obtained by the standing imaging received first is registered second and the imaging method is “standing”. Order ID "007"). In addition, the image data obtained by the second received position shooting is registered first, and the shooting order information of the “shooting order 2” whose shooting method is “upward position” (shooting order ID “006”). Correlate with.

As described above, in the radiographic imaging system 1b according to the second embodiment, loading of the portable radiographic image detector 2 is detected in the bucky device 3A (the standing-type bucky device 3a1 and the recumbent-type bucky device 3b1). When the loading detection switch 32 (loading detection means) is provided and radiographic image capturing in a plurality of imaging systems for one patient is continuously performed, the portable radiographic image detector 2 performs each imaging. Each time it is loaded into the bucky device 3A corresponding to the system, the loading detection result by the loading detection switch 32 is notified to the console 7b. In addition, the console 7b specifies the imaging order of radiographic imaging in each imaging method in the imaging room R1 based on the loading detection result notified from the Bucky device 3A, and each imaging from the portable radiographic image detector 2 When the image data acquired by radiographic imaging in the method is transmitted to the console 7b, the received image is received in accordance with the radiographic imaging sequence specified based on the loading detection result notified from the radiographic image detector 2. The data is associated with each shooting order information.

Therefore, even when radiographic imaging using a plurality of imaging methods is performed in an order different from the order in which the imaging order information is registered, the console 7b uses the image data acquired by each radiographic imaging and the imaging order. The information is accurately associated with the operator, and it is not necessary for the operator to look at the image display of each image data on the console to correct the correspondence between the image data and the shooting order information. Work burden can be reduced.

In the second embodiment, the detection that the radiation image detector 2 is loaded in the bucky device 3A is performed using the loading detection switch 32 formed in the cassette holding unit 31 of the bucky device 3A. explained. However, the means for detecting that the radiation image detector 2 is loaded in the bucky device 3A is not limited to this. For example, the connector of the radiation image detector 2 and the connector of the bucky device 3A are combined. This is based on detection, detection of an RFID tag or barcode label attached to the surface of the portable radiographic image detector 2 by the Bucky device 3A, operation of a switch provided on the Bucky device 3A, etc. Is also possible.

[Third Embodiment]
In the said 1st Embodiment and 2nd Embodiment, in

console

7, 7a, by detecting the attitude | position of the radiographic image detector 2, and the presence or absence of the loading of the radiographic image detector 2 to the Bucky device 3A, The case where the imaging order of radiographic imaging in the imaging system is specified has been described. However, based on the position of the radiation generator 102 at the time of radiographic imaging, it is also possible to specify the radiographic imaging sequence in each imaging method. Hereinafter, this case will be described in the third embodiment of the present invention.

In the following description, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant descriptions are omitted. Further, in the third embodiment, only portions different from the first embodiment will be described, and unless otherwise specified, the third embodiment has the same configuration as the first embodiment.

FIG. 21 is a diagram illustrating an overall configuration of a radiation imaging system according to the third embodiment, and FIG. 22 is a block diagram illustrating a functional configuration of a console according to the third embodiment.

In the radiographic image capturing system 1c according to the third embodiment, as in the first embodiment, as a bucky device 3 in the imaging room R1, a standing-type bucky device 3a for standing position imaging and a supine position imaging And a recumbent bucky device 3b. Each of these

bucky devices

3a and 3b is provided with a cassette holding unit 31 for holding the radiation image detector 2 at a predetermined position. The cassette image holding unit 31 is loaded with the radiation image detector 2. Radiation imaging can be performed.

Also, at least one radiation generator 4 having a radiation source for irradiating the subject with radiation is provided in the imaging room R1. In the present embodiment, as the radiation generating device 4, a stationary radiation generating device that is also used as a standing-type bucky device 3a for standing-up imaging and a standing-type bucky device 3b for standing-up imaging is disposed.

In addition, the structure which provides separately the radiation generator 4 only for the standing position imaging | photography corresponding to the standing position type | mold Bucky apparatus 3a, and the radiation generation apparatus 4 only for the position position imaging | photography corresponding to the position type | mold bucky apparatus 3b. It is also good. Moreover, it is good also as providing the portable radiation generator used for portable imaging | photography.

The radiation generator 4 includes a radiation source such as an X-ray tube connected to the console 41a. When a high voltage is applied to the radiation source, the radiation generator emits a dose of radiation corresponding to the voltage. Yes. The radiation source is provided with an aperture (not shown) that can be opened and closed.

Further, in the present embodiment, the radiation source of the radiation generator 4 that is also used as the standing-type bucky device 3a and the recumbent-type bucky device 3b is suspended from the ceiling of the imaging room R1, for example. At the time of imaging, it is activated based on an instruction from an operation console 41a, which will be described later, and is moved to a predetermined position corresponding to each imaging (a position facing the radiation image detector 2 loaded in the bucky device 3) by a moving means (not shown). It is configured to be moved so that the direction of radiation is adjusted so that the direction of irradiation is in a predetermined direction.

The console 41a is composed of a computer having a general-purpose CPU (Central Processing Unit) or a computer having a dedicated processor, and is connected to the radiation generating apparatus 4 by a cable or the like and to the console 7 via a cable or the like. Has been. Then, the console 41a acquires the imaging region information, the irradiation conditions of the radiation generator 4 and the like from the console 7c, and adjusts the position of the radiation generator 4 and the radiation generator 4 based on the operator's instruction. It functions as position control means by adjusting the radiation exposure dose, adjusting the aperture of the radiation generator, and the like. Further, the operator console 41a notifies the console 7c of position information indicating the adjusted position of the radiation generating apparatus 4 every time the position of the radiation generating apparatus 4 is adjusted based on an instruction to the operator during radiographic imaging. To do.

In the present embodiment, the position of the radiation generating device 4 is the position of the radiation source provided in the radiation generating device 4, and the position is controlled not only in the position of the radiation source but also in the direction (irradiation direction). Adjustment is also included.

The console 7c includes console control means 71c, wireless communication means 72, input means 73, display means 74, and storage means 75 as shown in FIG.

The console control means 71c is composed of, for example, a general-purpose CPU, ROM, RAM, etc. (all not shown), reads a predetermined program stored in the ROM, expands it in the work area of the RAM, and The CPU executes various processes according to the program to control the operation of each part of the console 7c.

As shown in FIG. 21, the radiation generator 4 and the tag reader 6 are connected to the console 7c via cables and the like, and in the radiographing room R via the wireless communication means 72 and the wireless access point 5 and the like. Wireless communication is possible with the radiation image detector 2 existing in

Here, in one radiographing room R1, for one patient, standing-up imaging using the standing-type bucky device 3a and standing-up imaging using the lying-up type bucky device 3b are continuously performed. In this case, the operator performs an operation on the console 41a to activate the radiation generating device 4, and to the radiation image detector 2 loaded in the standing-type bucky device 3a or the standing-type bucky device 3b. The position of the radiation generator 4 is adjusted according to the imaging method so that the radiation is appropriately irradiated. Therefore, every time the position of the radiation generating apparatus 4 is adjusted according to the imaging method, the position indicating the position of the radiation generating apparatus 4 from the console 41a that controls the position of the radiation generating apparatus 4 to the console 7c. Information will be notified.

Then, the console control means 71c of the console 7c determines whether the position of the radiation generator 4 corresponds to either the standing-type bucky device 3a or the standing-type bucky device 3b based on the positional information received from the console 41a. Is determined, and the order in which the standing-up shooting and the standing-up shooting are performed (shooting order) is specified based on the reception order of the position information. Based on the specified imaging order, the thinned image data and image data (raw data) transmitted from the radiation image detector 2 are associated with the imaging order information.

For example, prior to radiographic imaging, when two imaging order information items “008” and “009” for the patient D are selected on the selection screen H1 in FIG. Two pieces of imaging order information are stored together with the registration order. Here, for example, the shooting order information of the shooting order ID “008” whose shooting mode is “standing” is registered first, and the shooting order information of the shooting order ID “009” whose shooting mode is “recumbent”. Is registered second.

In the radiographing room R1, when performing radiographic imaging for the patient D in the order of, for example, supine imaging and standing imaging, the operator first sets the radiographic image detector 2 to the supine type bucky device. 3b, and then, in the front chamber R2, the console 41a is operated to activate the radiation generating device 4, and the radiation generating device 4 is moved to a position corresponding to the position photographing by the moving means (not shown). The position is adjusted so that the radiation image detector 2 loaded in the depression-type bucky device 3b is irradiated with radiation. . Then, the position information indicating the position of the radiation generating apparatus 4 is notified from the console 41a that has adjusted the position of the radiation generating apparatus 4 to the console 7c. Further, when the upright photographing is finished, the operator loads the radiation image detector 2 into the standing-type bucky device 3a, and then operates the console 41a in the front room R2 to activate the radiation generating device 4. In addition, the radiation generator 4 is moved to a position corresponding to the standing-up imaging (a position facing the radiation image detector 2 loaded in the standing-up type bucky device 3a) by a moving unit (not shown), The orientation is adjusted so that the radiation image detector 2 loaded in the bucky device 3a is irradiated with radiation. Then, the position information indicating the position of the radiation generating apparatus 4 is notified from the console 41a that has adjusted the position of the radiation generating apparatus 4 to the console 7c.

In response to this, the console control unit 71c determines that the radiographic image capturing method to be executed first is “recumbent” based on the position information received from the operation console 41a. The radiographing order information (imaging order ID “009”) is associated with “imaging order 1”, and the radiographic imaging method to be executed second is determined as “standing”, and the imaging method is “ The imaging order information (imaging order ID “008”) that is “standing” is associated with “imaging order 2”.

Thereafter, the thinned image data and image data (raw data) obtained by the standing position photographing and the thinned image data and image data (raw data) obtained by the standing position photographing from the radiation image detector 2 to the console 7b. Are transmitted in the order of imaging, the console control unit 71c captures image data (decimated image data, raw data) received from the radiation image detector 2 in the order of imaging corresponding to the reception order of the image data. Correlate with.

That is, the console control unit 71c captures the image data obtained by the first received standing image capturing, the image capturing order information (capturing order 1) of the “image capturing order 1” that is registered second and the image capturing method is “post position”. ID “009”). Also, the image data obtained by the second received standing shooting is set to the shooting order information (shooting order ID “008”) of “shooting order 2” which is registered first and the shooting method is “standing position”. Associate.

As described above, in the radiographic image capturing system 1c according to the third embodiment, the operation console 41a (position control means) for controlling the position of the radiation generation apparatus 4 is provided, and a plurality of targets for one patient are provided. When radiographic imaging is continuously performed in the imaging mode, position information indicating the position of the radiation generator 4 is notified from the console 41a to the console 7 every time the position of the radiation generator 4 is controlled. The Moreover, the console 7c specifies the imaging | photography order of the radiographic imaging in each imaging | photography method in imaging | photography room R1 based on the positional information on the radiation generator 4 notified from the console 41a, and portable radiographic image detector 2 is used. When image data acquired by radiographic imaging in each imaging method is transmitted to the console 7c, the radiographic imaging sequence specified based on the loading detection result notified from the radiographic image detector 2 is used. The received image data is associated with each shooting order information.

Therefore, even when radiographic imaging using a plurality of imaging methods is performed in an order different from the order in which the imaging order information is registered, the console 7c uses the image data acquired by each radiographic imaging and the imaging order. The information is accurately associated with the operator, and it is not necessary for the operator to look at the image display of each image data on the console to correct the correspondence between the image data and the shooting order information. Work burden can be reduced.

In the third embodiment, the operation console 41a connected to the radiation generator 4 and the console 7c has been described as controlling the position of the radiation generator 4 as position control means. The position control means may be configured to directly control the position of the radiation generator 4 and the like.

In the third embodiment, the case where only one radiation generating device 4 is provided in the imaging room R1 has been described. However, a plurality of radiation generating devices 4 may be provided. In this case, it can be configured to notify the console 7c of the position information of the radiation generator 4 in the activated state or the radiation generator 4 whose position has been finally controlled.

In each of the above-described embodiments, the case where the console is provided in the front room R2 adjacent to the imaging room R1 has been described. However, the console may be configured to be arranged in another place. Furthermore, in each of the above-described embodiments, a case has been described in which a console is previously associated with the imaging room R1 in a one-to-one relationship. However, a plurality of imaging rooms R1 and one or more consoles are connected by a network or the like. For example, it is possible to configure the designated photographing room R1 and the console to be associated one-to-one by designating an unused photographing room R1 by an operation on the console side.

Further, in each of the above embodiments, radiographic image capturing in each imaging method specified based on the position detection means provided in the portable radiographic image detector, the loading detection means provided in the Bucky device, the position information of the radiation generation device, and the like. Although the case where the imaging order is stored in association with the registered imaging order information has been described, for example, the registered imaging order information is rearranged according to the specified imaging order, and the portable radiographic image detector You may comprise so that the received image data may be matched with the imaging | photography order information after rearrangement in order.

In the above embodiment, the radiographic image detector is exemplified by “standing position shooting (portrait shooting)”, “standing position shooting (landscape shooting)”, supine shooting, and portable shooting. The type and number of imaging methods are not limited to this, and the present invention can be applied to a system in which radiographic imaging is executed by at least two imaging methods.

In the above embodiment, when the operator requests transmission of the original image data (raw data) of the thinned image data at the console, the radiation image detector 2 sends the original image data (raw) to the console. In the case where the image transmission switch is provided, an image transmission switch for instructing the radiographic imaging apparatus to transmit the image data is provided, and the image data is sent to the console when the operator operates the image transmission switch. May be configured to transmit.

In addition, it goes without saying that the present invention is not limited to the above-described embodiment and can be modified as appropriate.

1 Radiographic imaging system 2 Radiographic image detector (portable radiographic image detector)
22 Battery (Power supply means)
24 Antenna device (communication means)
28 Storage means 29 Attitude detection sensor (Attitude detection means)
27 Control means (notification means, transmission means)
7 Console 73 Input means (registration means)
DESCRIPTION OF SYMBOLS 1a Radiographic imaging system 7a Console 1b Radiographic imaging system 3A Bucky device 32 Loading detection switch (loading detection means)
3a1 Standing type Bucky device 3b1 Standing type Bucky device 7b Console 1c Radiation imaging system 4 Radiation generator 41a Operation console (position control means)
7c Console 3 Bucky device 3a Standing type Bucky device 3b Standing type Bucky device

Claims

A portable radiation image detector having a power supply means and a communication means;
A console capable of communicating with the portable radiation image detector;
With
The portable radiation image detector is
Attitude detection means for detecting the attitude of the portable radiographic image detector;
Notification means for notifying the console of the attitude detection result by the attitude detection means;
Storage means for storing image data acquired by radiographic imaging;
Transmitting means for transmitting the image data acquired by radiographic imaging to the console;
With
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the posture detection result notified by the notification unit and the imaging method information included in the imaging order information registered by the registration unit, and the registration A radiographic imaging system characterized by associating with the imaging order information registered by the means.
2. The radiographic image capturing system according to claim 1, wherein the imaging method information is imaging method information related to any one of a standing position photographing, a standing position photographing, and a portable photographing method.
The portable radiation image detector is
The radiographic image capturing system according to claim 1, wherein the posture detection result by the posture detecting unit is transmitted to the console before the image data acquired by the radiographic image capturing is transmitted. .
A portable radiation image detector having a power supply means and a communication means;
At least one bucky device capable of being loaded with the portable radiographic image detector;
A console capable of communicating with the bucky device and the portable radiation image detector;
With
The bucky device is
Loading detection means for detecting whether or not the portable radiographic image detector is loaded;
Notification means for notifying the console of the result of detection of loading by the loading detection means;
With
The portable radiation image detector is
Storage means for storing image data acquired by radiographic imaging;
A transmission means for transmitting the image data acquired by radiographic imaging to the console;
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the loading detection result notified from the Bucky device and the imaging method information included in the imaging order information registered by the registration unit, and the registration A radiographic imaging system characterized by associating the imaging order information registered by the means.
The radiological imaging system according to claim 4, wherein the bucky device includes a standing-type bucky device and a recumbent-type bucky device.
The portable radiation image detector is
The radiographic imaging system according to claim 4 or 5, wherein the loading detection result by the loading detection unit is transmitted to the console before transmission of the image data acquired by the radiographic imaging. .
A radiation generator for emitting radiation;
A portable radiation image detector having a power supply means and a communication means;
A console communicable with the radiation generator and the portable radiation image detector;
Position control means for controlling the position of the radiation generator;
With
The portable radiation image detector is
Storage means for storing image data acquired by radiographic imaging;
A transmission means for transmitting the image data acquired by radiographic imaging to the console;
The console is
A registration means for registering a plurality of radiographing order information including radiographing method information indicating a radiographic image radiographing method for one subject,
The image data transmitted by the transmission unit based on the position of the radiation generating device controlled by the position control unit and the imaging method information included in the imaging order information registered by the registration unit; A radiographic imaging system characterized by associating the imaging order information registered by the registration means.
The position control means includes
The radiation image capturing system according to claim 7, wherein the radiation generating device is adjustable to at least a position corresponding to the standing-type bucky device and a position corresponding to the standing-type bucky device.
The portable radiation image detector is
The thinned image data is generated based on the image data acquired by the radiographic imaging, and the generated thinned image data is transmitted to the console in preference to the image data. Item 9. The radiographic image capturing system according to any one of Items 8.
The portable radiation image detector is
The radiographic imaging system according to claim 1, wherein a battery is incorporated as the power supply unit.