WO2016084517A1 - 放射線画像撮影装置および放射線画像撮影システム - Google Patents
放射線画像撮影装置および放射線画像撮影システム Download PDFInfo
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- WO2016084517A1 WO2016084517A1 PCT/JP2015/079394 JP2015079394W WO2016084517A1 WO 2016084517 A1 WO2016084517 A1 WO 2016084517A1 JP 2015079394 W JP2015079394 W JP 2015079394W WO 2016084517 A1 WO2016084517 A1 WO 2016084517A1
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Definitions
- the present invention relates to a radiographic imaging apparatus and a radiographic imaging system, and more particularly to a radiographic imaging apparatus and a radiographic imaging system used for radiography.
- such a portable radiographic imaging device has been configured to operate under imaging control by a console constituted by a computer or the like.
- the console activates the radiographic imaging device, or the power consumption state of the radiographic imaging device (so-called power saving state (also referred to as a sleep state) or imaging enabled state (also referred to as a wake up state)).
- power saving state also referred to as a sleep state
- imaging enabled state also referred to as a wake up state
- Switching, transferring image data or the like from the radiographic imaging device for each radiographing, or associating (linking, etc.) the generated radiographic image with radiographing order information describing instructions for radiographic image radiography Also referred to as, for example, Patent Document 1).
- the radiographic image capturing apparatus is hereinafter referred to as a controlled mode in the sense that the radiographic image capturing apparatus is controlled by an external console. That is, the controlled mode represents a conventional normal imaging mode in which the radiographic image capturing apparatus operates under imaging control by the console.
- Patent Document 2 imaging is performed using a radiographic imaging apparatus without being controlled by a console, and the captured image data is stored in a storage unit in the radiographic imaging apparatus.
- a type of radiographic imaging device that is memorized is known.
- patent document 2 when downloading the image
- the radiographic image capturing apparatus is hereinafter referred to as a self-supporting mode in the sense that the radiographic image capturing apparatus performs imaging in an independent state without being controlled by the console. That is, the self-supporting mode represents an imaging mode in which the radiographic image capturing apparatus performs imaging without receiving imaging control by the console and the captured image data is stored in the radiographic image capturing apparatus.
- the radiographic imaging device in a controlled mode, information such as imaging order information relating to each radiography to be performed in the future is usually transferred from the console to the radiographic imaging device, and the radiographic imaging device performs imaging sequentially in accordance with those information. It is controlled to do. Then, the image data is transferred from the radiation image capturing apparatus to the console in the order of capturing. Therefore, when associating the radiographic image generated based on the image data transmitted from the console as described above with the radiographing order information, for example, the radiographic image is not the radiographing order information that instructs the radiographic image to be radiographed.
- the radiation image and the imaging order information can be accurately associated with each other without causing a situation such as association with the information.
- a new shooting order information corresponding to the shooting is created on the console and added to the console.
- the operation is troublesome.
- the radiographic imaging device in the self-supporting mode is used, an operator such as a radiographer can perform radiographing freely without being restricted by console control or radiographing order information. Shooting and the like can be freely performed at his own discretion. Therefore, the radiographic imaging device in the self-supporting mode is easy to use for an operator such as a radiographer at least in this respect.
- the radiographic image capturing apparatus in the self-supporting mode it is possible to perform image capturing freely without being restricted by the image capturing order information as described above. For this reason, the image is generated based on the image data captured.
- a medical worker such as a radiologist has to associate the radiation image with the imaging order information on the console. Therefore, the radiographic imaging device in the self-supporting mode is inconvenient for medical personnel such as radiologists at least in this respect.
- the present invention has been made in view of the above-described problems, and provides a radiographic image capturing apparatus and a radiographic image capturing system that can effectively exhibit the respective advantages in the respective imaging modes of the controlled mode and the independent mode. With the goal.
- the radiographic imaging device of the present invention includes: A plurality of radiation detection elements that are arranged in a two-dimensional manner and generate electric charges according to the dose of irradiated radiation; Control means for controlling to read out the charge from at least each of the radiation detection elements and generate image data;
- the shooting mode can be switched between a controlled mode that is controlled by an external console and a self-supporting mode that performs shooting independently without being controlled by the console.
- the control means switches its processing method to the processing method in the shooting mode after switching.
- the radiographic imaging system of the present invention is A plurality of radiation detection elements that are arranged in a two-dimensional manner and generate electric charges according to the dose of irradiated radiation; Control means for controlling to read out the charge from at least each of the radiation detection elements and generate image data;
- a radiographic imaging device comprising: A console capable of controlling the operation of the radiographic apparatus, In a radiographic imaging system comprising: The radiographic imaging device is capable of switching the imaging mode between a controlled mode that is controlled by the console and an independent mode that performs imaging independently without being controlled by the console, When the imaging mode is switched between the controlled mode and the self-supporting mode, the control unit of the radiographic imaging device switches its processing method to a processing method in the imaging mode after switching. .
- radiographic image capturing apparatus and radiographic image capturing system of the system as in the present invention it is possible to effectively exert the respective advantages in the respective imaging modes of the controlled mode and the self-supporting mode in the radiographic image capturing apparatus. .
- FIG. 6 is a timing chart for explaining the timing of applying an on-voltage to each scanning line when radiographic imaging apparatus and radiation irradiation apparatus perform imaging in cooperation.
- FIG. 7 is a timing chart showing that offset data reading processing is performed by repeating the processing sequence shown in FIG. 6.
- FIG. It is a figure which shows the structural example in case the radiographic imaging system is constructed
- FIG. B It is a flowchart showing each process in the structural example B in case the imaging
- a so-called indirect radiation image includes a scintillator or the like as a radiation image capturing device, converts irradiated radiation into light of other wavelengths such as visible light with a scintillator, and obtains image data with a radiation detection element.
- a scintillator or the like as a radiation image capturing device, converts irradiated radiation into light of other wavelengths such as visible light with a scintillator, and obtains image data with a radiation detection element.
- the imaging apparatus will be described, the present invention can also be applied to a so-called direct type radiographic imaging apparatus that directly detects radiation with a radiation detection element without using a scintillator or the like.
- FIG. 1 is a perspective view showing an appearance of a radiographic image capturing apparatus.
- the radiographic image capturing apparatus 1 is configured such that a later-described radiation detection element 7 and the like are housed in a housing 2, and a power switch 25 and a changeover switch 26 are provided on one side surface of the housing 2.
- the connector 27, the indicator 28, etc. described above are arranged.
- an antenna 29 (see FIG. 2 to be described later) for performing wireless communication with a console 58 and the like which will be described later is provided on the opposite side surface of the housing 2, for example. It has been.
- the radiographic imaging apparatus 1 uses the antenna 29 when communicating with the outside in a wireless manner, and communicates by connecting a cable or the like (not shown) to the connector 27 when communicating with the outside in a wired manner. It has become.
- FIG. 2 is a block diagram showing an equivalent circuit of the radiation image capturing apparatus.
- a plurality of radiation detection elements 7 are arranged in a two-dimensional shape (matrix shape) on a sensor substrate (not shown). Each radiation detection element 7 generates a charge according to the dose of the irradiated radiation.
- a bias line 9 is connected to each radiation detection element 7, and the bias line 9 is connected to a connection 10.
- the connection 10 is connected to a bias power supply 14 so that a reverse bias voltage is applied from the bias power supply 14 to each radiation detection element 7 via the bias line 9 and the like.
- a thin film transistor (hereinafter referred to as TFT) 8 is connected to each radiation detection element 7 as a switch element, and the TFT 8 is connected to the signal line 6.
- the scanning drive means 15 the on voltage and the off voltage supplied from the power supply circuit 15a via the wiring 15c are switched by the gate driver 15b and applied to the lines L1 to Lx of the scanning line 5. Yes.
- each TFT 8 is turned on when an on-voltage is applied via the scanning line 5, discharges the charge accumulated in the radiation detection element 7 to the signal line 6, and also passes through the scanning line 5.
- the off voltage is applied, the radiation state is turned off, the conduction between the radiation detection element 7 and the signal line 6 is interrupted, and the charge generated in the radiation detection element 7 is accumulated in the radiation detection element 7. It has become.
- a plurality of readout circuits 17 are provided in the readout IC 16, and the signal lines 6 are connected to the readout circuits 17, respectively.
- the amplifier circuit 18 responds to the amount of the charged charge. Output voltage value.
- the correlated double sampling circuit (described as “CDS” in FIG. 2) 19 reads out the voltage value output from the amplifier circuit 18 as analog image data D and outputs it to the downstream side.
- the output image data D is sequentially transmitted to the A / D converter 20 via the analog multiplexer 21, and is sequentially converted into digital image data D by the A / D converter 20, and is output to the storage means 23. Are stored sequentially.
- the control means 22 is a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a RAM (Random Access Memory), an input / output interface connected to the bus, an FPGA (Field Programmable Gate Array) or the like. It is configured. It may be configured by a dedicated control circuit.
- the control means 22 is connected to a storage means 23 composed of SRAM (Static RAM), SDRAM (Synchronous DRAM) or the like, and communicates with the outside via an antenna 29 or a connector 27 in a wireless or wired manner.
- a communication unit 30 is connected.
- the control means 22 is connected to a battery 24 and the like for supplying necessary power to each functional unit such as the scanning drive means 15, the readout circuit 17, the storage means 23, and the bias power supply 14. Then, the control means 22 controls the operation of the scanning drive means 15 and the readout circuit 17 as described above during the generation processing of the image data D, reads out the charges from the radiation detection elements 7 and reads the image data. Control is performed to generate D.
- the radiographic image capturing apparatus 1 can be mounted on the imaging stand 51 and used for imaging.
- the radiographic imaging device 1 is not loaded on the imaging stand 51 and is in a single state.
- it can be applied to the body of a patient as a subject, or can be used for photographing by being inserted between a patient and a bed, for example.
- FIG. 3 is a diagram illustrating a configuration example when the radiographic image capturing system 50 is constructed in the imaging room R1.
- an imaging table 51 is installed, and the imaging table 51 can be loaded with the radiographic imaging device 1 in the cassette holder 51a.
- FIG. 3 a case in which a shooting table 51 ⁇ / b> A for standing position shooting and a shooting table 51 ⁇ / b> B for standing position shooting are installed as the shooting table 51, but only one shooting table 51 is provided. It may be.
- at least one radiation source 52A of a radiation irradiating apparatus 57 that irradiates the radiation image capturing apparatus 1 mounted on the imaging stand 51 via a subject is provided in the imaging room R1. ing.
- a repeater 54 having an access point 53 is provided for relaying communication between each device in the photographing room R1 and each device outside the photographing room R1, and the like.
- the repeater 54 is connected to a radiation irradiation device 57, a console 58, and the like.
- the relay 54 converts a LAN (Local Area Network) communication signal transmitted from the radiation image capturing apparatus 1 or the console 58 to the radiation irradiation apparatus 57 into a signal for the radiation irradiation apparatus 57, or the like.
- a converter (not shown) that performs the reverse conversion is incorporated.
- the cradle 55 is provided in the photography room R1. Note that the cradle 55 can also be disposed in the front chamber R2, which will be described later. As shown in FIG. 4, when the radiographic image capturing apparatus 1 is inserted into the cradle 55 and the connector 27 (see FIG. 1) of the radiographic image capturing apparatus 1 and the connector 55 a of the cradle 55 are connected, the cradle 55 is connected. Thus, power is supplied to the battery 24 (see FIG. 2) of the radiographic apparatus 1 so that the battery 24 can be charged.
- the relay 54 and the cradle 55 are connected, and as shown in FIG. 4, when the radiographic imaging device 1 brought into the imaging room R1 is inserted into the cradle 55,
- the cassette ID which is identification information of the radiographic imaging apparatus 1, is configured to be notified to the console 58 via the relay 54, and the radiographic imaging apparatus 1 existing in the imaging room R1 is managed by the console 58. It is also possible to configure.
- the front room (also referred to as an operation room or the like) R2 is provided with a console for the radiation irradiation device 57, and the console is provided with an exposure switch 56 as shown in FIG. 5A.
- the console is provided with an exposure switch 56 as shown in FIG. 5A.
- an operator such as a radiologist performs the first stage operation (that is, so-called half-press operation) on the button 56a of the exposure switch 56 as shown in FIG. Start up.
- the second stage operation that is, so-called full pressing operation
- the radiation irradiation device 57 emits radiation from the radiation source 52. It is supposed to be irradiated.
- the radiation irradiation device 57 transmits an irradiation start signal to the radiation image capturing device 1.
- the radiographic imaging device 1 detects radiation by sequentially applying an on-voltage to each of the lines L1 to Lx of the scanning line 5 from the gate driver 15b (see FIG. 2) of the scanning driving unit 15 as preprocessing for imaging.
- the reset process of the element 7 is performed, when the irradiation start signal is received from the radiation irradiation apparatus 57, the reset process is stopped as shown in FIG.
- an off voltage is applied from the gate driver 15b to each of the lines L1 to Lx of the scanning line 5 to turn off all the TFTs 8, and charges accumulated by radiation irradiation are accumulated in each radiation detecting element 7.
- an interlock release signal is transmitted to the radiation irradiation device 57.
- the radiation irradiation apparatus 57 is comprised so that radiation may be irradiated from the radiation source 52, when an interlock release signal is received.
- the hatched portion in FIG. 6 represents the period during which radiation is applied.
- the control means 22 of the radiographic imaging apparatus 1 sequentially applies on-voltages to the respective lines L1 to Lx of the scanning line 5 from the gate driver 15b and reads out the electric charges from the respective radiation detection elements 7 when the irradiation of the radiation is completed.
- the image data D is generated.
- control means 22 of the radiographic imaging device 1 is the same as the voltage application sequence shown in FIG. 6 as shown in FIG. 7 in a state where the radiation imaging device 1 is not irradiated with radiation before or after imaging.
- the offset data O is read out by repeating the sequence.
- This offset data O is data corresponding to the offset due to the dark charge (also referred to as dark current) superimposed on the image data D generated as described above, and the subsequent image correction processing.
- a console 58 made up of a computer or the like is provided in the front room R2.
- the console 58 is provided with a display unit 58a including a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), and the like, and includes input means such as a mouse and a keyboard (not shown).
- the console 58 is connected to or has a built-in storage means 59 composed of an HDD (Hard Disk Drive) or the like.
- HDD Hard Disk Drive
- console 58 is connected to a network such as a LAN through a HIS (Hospital Information System), RIS (Radiology Information System), PACS (Picture Archiving Information and Communication). System) and other external systems.
- HIS Hospital Information System
- RIS Radiology Information System
- PACS Picture Archiving Information and Communication
- FIG. 3 shows a case in which the radiographing room R1 and the console 58 are associated with 1: 1, but other illustrations may be omitted depending on the facility such as a hospital. There may be a case where a plurality of photographing rooms are configured to be connected to one or a plurality of consoles via a network or the like.
- the radiographic imaging system 50 is not only configured in the imaging room as shown in FIG. 3, but may be constructed on the round-trip wheel 60 as shown in FIG. 8, for example.
- the radiographic imaging device 1 is brought into the hospital room R3, the patient's home, etc. together with the round-trip wheel 60 and the like. It can be used by being inserted into the body or applied to the body of the patient H.
- the roundabout wheel 60 may be equipped with a console 58 constituted by a notebook personal computer or the like, but may not be loaded as described later. Although not shown in FIG. 8, the roundabout wheel 60 is configured so that the access point 53, the repeater 54, and the like shown in FIG.
- an operator E such as a radiologist carries the information portable terminal 70 having the display unit 71. It is also possible to configure so that the operator E can confirm an image on the display unit 71 of the information portable terminal 70. This point will be described later.
- the radiation start signal and the interlock release signal are usually exchanged between the radiographic image capturing apparatus 1 and the radiation irradiation apparatus 57.
- the image photographing device 1 and the radiation irradiation device 57 are configured to perform photographing in cooperation.
- the radiation image capturing device 1 and the radiation irradiation device 57 may not be configured (or not configured) to perform imaging in cooperation. .
- the radiation irradiation device 57 normally emits radiation immediately.
- the radiographic imaging device 1 stores all the charges generated by the radiation irradiation in each radiation detection element 7 at the time when the radiation irradiation is started.
- the TFT 8 must be turned off to shift to the charge accumulation state. Therefore, it is often configured so that the radiation imaging apparatus 1 itself can detect that radiation irradiation has started.
- the image data D generation process described above is repeatedly performed before radiation irradiation is started, and the image data generated for each frame is added to restore the image data for each radiation detection element 7. Sometimes it is done.
- the radiographic imaging device 1 and the radiation irradiating device 57 are linked with each other as described above is not directly related to the controlled mode or the independent mode in the radiographic imaging device 1 described below. That is, even when the radiographic imaging device 1 and the radiation irradiating device 57 are linked or not linked, the radiographic imaging device 1 performs imaging under the control of the console 58. In this case, the radiographic image capturing apparatus 1 is in a controlled mode. When the radiographic image capturing apparatus 1 performs independent imaging without being controlled by the console 58, the radiographic image capturing apparatus 1 has the radiographic mode. It is a self-supporting mode.
- the radiation imaging apparatus 1 has been conventionally configured to operate under the control of the console 58 (see FIG. 3 and the like).
- the imaging mode of the radiographic imaging device 1 when receiving control by the console 58 is referred to as a controlled mode in the present invention.
- the control means 22 (see FIG. 2) of the radiographic image capturing apparatus 1 receives a signal instructing the start of imaging from the console 58, for example, each functional unit such as the scanning drive means 15 or the like.
- the pre-processing for imaging is started, such as starting the reset operation of the radiation detection element 7 for performing the initial operation or removing the charge remaining in each radiation detection element 7.
- the console 58 is configured to transmit shooting order information related to shooting to be performed.
- the control unit 22 of the radiographic image capturing apparatus 1 shifts the power consumption state from the power saving state to the imageable state, and the bias power source 14 from the bias line 9 and the like.
- a reverse bias voltage is applied to each radiation detecting element 7 through the above, or when the radiation imaging apparatus 1 itself detects the radiation irradiation start as described above, the irradiation start detection process is started.
- control unit 22 of the radiographic image capturing apparatus 1 performs the generation process of the image data D (see FIG. 6) and the reading process of the offset data O as described above, the image data D, the offset data O, and the like are immediately obtained. It is configured to forward to console 58. At that time, as is well known, a part of the image data D is extracted in order to display a preview image for confirmation on the display unit 58a of the console 58 prior to transfer of the image data D or the like. Or the image data D may be transferred to the console 58 by irreversible compression.
- control means 22 of the radiographic image capturing apparatus 1 resumes the preprocessing such as the reset processing of the radiation detection element 7 for the next imaging, and if there is no next imaging, It is configured to perform processing such as transition of the power consumption state from the photographing enabled state to the power saving state automatically or in accordance with an instruction from the console 58.
- control unit 22 of the radiographic image capturing apparatus 1 performs its own processing under the control of the console 58, and in addition to the functional units such as the scanning drive unit 15 and the readout circuit 17. It is configured to control so as to perform the operation accurately.
- the imaging order information is information for instructing a target patient, an imaging part, an imaging direction, and the like regarding imaging.
- “patient ID” P2 “patient” “Name” P 3, “Gender” P 4, “Age” P 5, “Department of Medicine” P 6, “Imaging part” P 7, “Imaging direction” P 8, “Position” P 9, etc. as imaging conditions.
- “shooting order ID” P1 is automatically assigned to each shooting order information in the order of acceptance.
- the console 58 is configured to obtain imaging order information from the HIS or RIS when a predetermined operation is performed by an operator such as a radiologist.
- the radiographic imaging device 1 can be configured not to be controlled by the console 58 but to perform imaging in a so-called independent state.
- the radiographic image capturing apparatus 1 since the radiographic image capturing apparatus 1 is often not in communication with the console 58, the captured image data D is stored in the radiographic image capturing apparatus 1, that is, the storage means 23 (see FIG. 2).
- the imaging mode of the radiographic image capturing apparatus 1 when not controlled by the console 58 is referred to as a self-supporting mode in the present invention.
- the control means 22 of the radiographic image capturing apparatus 1 scans when the power switch 25 (see FIG. 1) is operated by an operator such as a radiographer, for example. Preprocessing for photographing such as starting the reset operation of the radiation detecting element 7 for causing each functional unit such as the means 15 to perform an initial operation or removing the charge remaining in each radiation detecting element 7 Start.
- the self-supporting mode communication is not performed between the radiographic image capturing apparatus 1 and the console 58 as described above. Therefore, the radiographic image capturing apparatus 1 obtains in advance imaging order information related to imaging to be performed in the future. There is no. An operator such as a radiologist can also be configured to input.
- control means 22 of the radiographic imaging device 1 changes the power consumption state from the power saving state to the radiographable state when the changeover switch 26 (see FIG. 1) is operated by an operator such as a radiographer, for example.
- the changeover switch 26 see FIG. 1
- the control means 22 of the radiographic imaging device 1 changes the power consumption state from the power saving state to the radiographable state when the changeover switch 26 (see FIG. 1) is operated by an operator such as a radiographer, for example.
- a reverse bias voltage is applied from the bias power supply 14 to each radiation detection element 7 via the bias line 9 or the like, for example, when the radiation imaging apparatus 1 itself detects the start of radiation irradiation as described above, irradiation is performed. Start detection processing.
- control unit 22 of the radiographic image capturing apparatus 1 stores the generated image data D or the like in the storage unit 23, and when it is later connected to the console 58 by a wireless method or a wired method. Thus, the image data D is transferred to the console 58.
- control means 22 of the radiographic image capturing apparatus 1 performs the reset process of the radiation detection element 7 after the completion of the image capturing and the generation processing of the image data D (see FIG. 6), and prepares for the next image capturing.
- preparation is performed or the radiation imaging apparatus 1 itself is configured to detect the start of radiation irradiation, a process for detecting the start of radiation irradiation is performed.
- control unit 22 of the radiographic image capturing apparatus 1 saves the power consumption state from the radiographable state when the changeover switch 26 is operated by an operator such as a radiographer after the generation processing of the image data D is completed. Transition to the power state. Further, when the next imaging is not performed even after a predetermined time has elapsed after the generation processing of the image data D is completed (that is, when there is no transmission of an irradiation start signal from the radiation irradiation device 57, or radiation irradiation starts). If the start of radiation irradiation is not detected even if the detection process is performed), the power consumption state may be automatically changed from the imaging enabled state to the power saving state.
- control unit 22 of the radiographic image capturing apparatus 1 performs its own processing without receiving the imaging control by the console 58, and each function unit such as the scanning driving unit 15 and the readout circuit 17 is processed. Control is performed so as to perform the operation accurately, and the generated image data D and the like are stored in the storage unit 23.
- the imaging control by the console 58 is performed based on the imaging order information as described above, and the radiographic image generated based on the captured image data D and the imaging order information are Since the association is automatically performed by the console 58, a medical worker such as a radiologist only needs to confirm that the association by the console 58 is performed accurately and perform a confirmation process. There is an advantage that it is possible to easily and accurately associate an image with shooting order information.
- the imaging control by the console 58 is performed based on the imaging order information as described above, as described above, for example, when an operator such as a radiographer performs additional imaging that is not included in the imaging order information, In subsequent imaging, the order of the generated radiographic image and the order of the imaging order information are shifted one by one, and there is a problem that the console cannot accurately associate the radiographic image and the imaging order information. is there.
- console 58 does not associate the radiographic image generated based on the captured image data D with the imaging order information, it is troublesome to associate the radiographic image with the imaging order information. There was a problem that medical workers such as radiologists had to do the work themselves.
- the radiographic image capturing apparatus 1 can switch the imaging mode between the controlled mode and the independent mode.
- the control means 22 of the radiographic imaging device 1 is configured to switch its processing method to the processing method in the switched imaging mode when the imaging mode is switched between the controlled mode and the independent mode. Has been.
- the control means 22 switches its processing method to perform processing according to the shooting control by the console 58 as described above. Further, if the shooting mode after switching is the self-supporting mode, the processing method is switched so as to perform independent processing without receiving the shooting control by the console 58 as described above.
- radiography when radiography is performed with the radiographing apparatus 1 in the controlled mode, an operator such as a radiographer performs additional radiographing that is not included in the radiographing order information.
- additional imaging or the like can be appropriately performed by switching the imaging mode of the radiation image capturing apparatus 1 to the self-supporting mode.
- the imaging mode of the radiographic imaging apparatus 1 is switched to the controlled mode, and imaging is sequentially performed appropriately under the control of the console 58.
- the radiographic imaging device 1 and the round-trip wheel 60 are taken in the hospital room R3 (see FIG. 8) or the patient's home, etc.
- the radiographic imaging device 1 is captured without bringing in the console 58.
- the operator such as a radiographer can change the order of radiographing of the radiographed part for patients who cannot come to the radiography room R1 and are unable to move freely. It is possible to perform photographing while changing appropriately and freely according to the situation.
- the radiographic image capturing apparatus 1 is easy to use for an operator such as a radiographer, and the radiographic image capturing apparatus 1 allows the radiographic image capturing apparatus 1 to effectively exhibit the respective advantages in each of the controlled mode and the independent mode. Thus, it is possible to perform photographing accurately.
- the radiographic image capturing apparatus 1 is configured to control the radiographing mode of the radiographic image capturing apparatus 1 under the controlled mode that is controlled by the external console 58.
- the control unit 22 is configured to be able to switch between the self-supporting mode of performing the shooting independently without being controlled by the control. Is configured to switch its processing method to the processing method in the shooting mode after switching.
- the radiographic image capturing apparatus 1 is easy to use for an operator such as a radiographer, and the radiographic image capturing apparatus 1 allows the radiographic image capturing apparatus 1 to effectively exhibit the respective advantages in each of the controlled mode and the independent mode. Thus, it is possible to perform photographing accurately.
- the radiographic image capturing apparatus 1 may be configured so that the radiographic image capturing apparatus 1 is automatically switched by the control means 22 of the radiographic image capturing apparatus 1 and manually configured by an operator such as a radiographer. It is also possible.
- the control unit 22 When the control unit 22 is configured to automatically switch the imaging mode of the radiographic image capturing apparatus 1, the control unit 22 automatically sets the imaging mode to an imaging mode suitable for the situation where the radiographic image capturing apparatus is used. It can be configured to switch automatically.
- the control means 22 of the radiographic imaging device 1 automatically switches will be described with some examples.
- radiographic imaging device 1 in the default (initial setting) imaging mode is set to the self-supporting mode or the controlled mode depends on whether it is a user (a facility such as a hospital or an operator such as a radiographer) ) Can be set arbitrarily. It is also possible to configure so that the default imaging mode of the radiation image capturing apparatus 1 is not set to either the self-supporting mode or the controlled mode.
- Example 1 of automatic switching For example, when the radiographic image capturing apparatus 1 is used in the imaging room R1, the radiographic image capturing apparatus 1 can perform radiographing more smoothly if the radiographic image capturing apparatus 1 is imaged under the control of the console 58. It is easier for an operator such as a radiologist to have the console 58 perform the association with the imaging order information. Therefore, for example, when the radiographic image capturing apparatus 1 is used in the imaging room R1, it is convenient for the operator that the radiographic image capturing apparatus 1 is automatically switched from the self-supporting mode to the controlled mode.
- the control unit 22 of the radiographic imaging device 1 determines that when the imaging mode of the radiographic imaging device 1 is the independent mode,
- the photographing mode can be configured to automatically switch from the self-supporting mode to the controlled mode.
- the imaging mode remains in the controlled mode.
- the radiographic imaging apparatus 1 when the radiographic imaging apparatus 1 is used in the imaging room R1, in most cases, the radiographic imaging apparatus 1 is used by being loaded into the cassette holder 51a of the imaging platform 51 (see FIG. 3). . At that time, although not shown, the connector disposed in the cassette holder 51a and the connector 27 (see FIG. 1) of the radiographic apparatus 1 are loaded in a connected state.
- the radiographic imaging device 1 when used in the radiographing room R1, for example, the radiographic imaging device 1 is placed on the top board instead of being loaded in the cassette holder 51a of the imaging stand 51B for lying position imaging.
- the connector 51 b attached to the tip of the cable 51 c of the imaging table 51 and the connector 27 of the radiographic imaging device 1 may be used in a connected state.
- FIG. 3 and FIG. 4 there may be a case where the radiation image capturing apparatus 1 brought into the imaging room R1 is inserted into the cradle 55.
- the inserted radiation The connector 27 of the image capturing apparatus 1 and the connector 55a of the cradle 55 are connected.
- the connector 27 of the radiographic imaging apparatus 1 when the radiographic imaging apparatus 1 is used in the imaging room R1, the connector 27 of the radiographic imaging apparatus 1, the connector in the cassette holder 51a of the imaging stand 51, and the cable provided on the imaging stand 51 are used. In many cases, the connector 51b of 51c or the connector 55a of the cradle 55 is connected.
- the control means 22 of the radiographic imaging apparatus 1 has identification information of each device having a connector existing in the imaging room R1 in a memory or a program in advance, and the connector of the radiographic imaging apparatus 1 27, when another connector is connected, whether the identification information of the counterpart device transmitted via the connected other connector is present in the identification information of each device already held If it exists, it is determined that the radiographic image capturing apparatus 1 is used in the imaging room R1, and the radiographic image capturing apparatus 1 is automatically switched from the self-supporting mode to the controlled mode. It is possible to configure.
- control means 22 of the radiographic image capturing apparatus 1 includes the connector 27 of the radiographic image capturing apparatus 1 and the connector (namely, the connector in the cassette holder 51a of the image capturing table 51 and the image capturing table 51).
- the connector 51b of the cable 51c, the connector 55a of the cradle 55, and the like) can be configured to switch the radiographic image capturing apparatus 1 from the self-supporting mode to the controlled mode.
- the imaging table 51 is of a type in which a conventional CR (computed radiography) cassette is loaded
- a connector is often not provided in the cassette holder 51 a of the imaging table 51.
- the connector 51b of the cable 51c of the imaging table 51 is connected to the connector 27 of the radiographic imaging device 1
- the radiographic imaging device 1 is connected to the connector 27 of the imaging table 51 in a state where communication can be performed in a wired manner via the cable 51c.
- the radiographic imaging apparatus 1 loaded in the cassette holder 51a of the imaging stand 51 is connected to the antenna 29 (without connecting the cable 51c to the radiographic imaging apparatus 1).
- the wireless communication is configured to perform wireless communication with the outside via the system.
- the radiographic image capturing apparatus 1 when the radiographic image capturing apparatus 1 is used by being placed on the top plate of the imaging table 51B for lying position imaging, the cable 51c is not connected to the radiographic image capturing apparatus 1 and the The radiographic imaging device 1 placed on the plate may be configured to perform wireless communication with the outside via the antenna 29 in some cases.
- the control means 22 of the radiographic imaging apparatus 1 stores in advance identification information such as SSID (Service Set Identifier) when performing wireless communication with the access point 53 (see FIG. 3) existing in the imaging room R1. Or in the program, and when the wireless communication between the antenna 29 of the radiographic imaging apparatus 1 and the access point 53 is established, identification information such as the SSID of the other party to be transmitted is previously stored. It is determined whether or not it exists in the identification information, and if it exists, it is determined that the radiographic imaging device 1 is used in the imaging room R1, and the radiographic imaging device 1 is automatically set in the radiographic mode. It is possible to configure to switch from the independent mode to the controlled mode.
- identification information such as SSID (Service Set Identifier)
- the control means 22 of the radiographic imaging device 1 establishes the radiographic imaging device. It is possible to configure so that one photographing mode is switched from the self-supporting mode to the controlled mode.
- the control means 22 of the radiographic image capturing apparatus 1 has identification information for all the access points 53 in the imaging room R1 in advance.
- the photographing mode is switched from the self-supporting mode to the controlled mode when wireless communication with any one of the access points 53 is established.
- the radiographic imaging apparatus 1 is set to the independent mode in the default state by switching the imaging mode, for example.
- the radiation image photographing apparatus 1 is used for photographing in the photographing room R1, it becomes possible to automatically and accurately switch to the controlled mode.
- the radiographic image capturing apparatus 1 automatically switches to the radiographic mode. Therefore, an operator such as a radiographer can perform imaging according to a familiar manner of operation and processing in the imaging mode that has been conventionally performed in the imaging room R1.
- the photographing apparatus 1 is convenient for the operator.
- console 58 since imaging is performed under the control of the console 58, it is possible to perform imaging smoothly, and the console 58 associates the radiographic image with the imaging order information. The operator can easily perform the work.
- the means 22 can be configured to return the imaging mode of the radiographic imaging device 1 to the default state when the default imaging mode of the radiographic imaging device 1 is set. That is, when the default imaging mode of the radiographic image capturing apparatus 1 is set to the independent mode, the radiographic image capturing apparatus 1 is switched from the controlled mode to the independent mode, and the default imaging mode is set to If the control standing mode is set, the radiographic image capturing apparatus 1 remains in the controlled mode.
- the default imaging mode of the radiographic image capturing apparatus 1 when the default imaging mode of the radiographic image capturing apparatus 1 is set to the self-supporting mode, when the radiographic image capturing apparatus 1 is inserted into the cradle 55 instead of the connector of the imaging room R1 as described above, The situation is different. That is, the connection between the connector 27 of the radiation image capturing apparatus 1 and the connector 55a of the cradle 55 that has occurred when the radiation image capturing apparatus 1 is inserted into the cradle 55 is released when the radiation image capturing apparatus 1 is pulled out from the cradle 55.
- the radiographic image capturing apparatus 1 When the radiographic image capturing apparatus 1 is switched from the controlled mode to the self-supporting mode and returned to the default state as described above, the radiographic image capturing apparatus 1 is inserted into the cradle 55 ( That is, by connecting the connector 27 of the radiographic imaging apparatus 1 and the connector 55a of the cradle 55), the control means 22 of the radiographic imaging apparatus 1 determines that the radiographic imaging apparatus 1 is used in the imaging room R1. Then, the radiographic image capturing apparatus 1 is switched from the default self-supporting mode to the controlled mode. Meaning that was replaced is eliminated.
- the imaging mode is switched to the controlled mode, but the radiographic imaging device 1 is pulled out from the cradle 55. If the imaging mode returns to the default self-supporting mode at that time, the imaging mode of the radiographic image capturing apparatus 1 is set to the controlled mode only while the radiographic image capturing apparatus 1 is inserted into the cradle 55. It is meaningless if the radiographic image capturing apparatus 1 is pulled out from the cradle 55 and the radiographic image capturing apparatus 1 used for image capturing in the image capturing room R1 returns to the self-supporting mode.
- the default imaging mode of the radiographic image capturing apparatus 1 is set to the self-supporting mode, and when the radiographic image capturing apparatus 1 is inserted into the cradle 55, the radiographic image capturing apparatus 1 has the default imaging mode.
- the radiographic imaging device 1 is controlled without switching the imaging mode. Configured to remain in mode.
- the radiographic imaging device 1 when the radiographic imaging device 1 is taken out of the imaging room R1, it is inserted again into the cradle 55, or, for example, the radiographic imaging device 1 is inserted into a cradle of a storage (not shown).
- the radiographic imaging apparatus 1 can be configured to switch the imaging mode from the controlled mode to the self-supporting mode and return to the default state.
- the radiographic image capturing apparatus 1 in which there are a plurality of imaging rooms and is inserted into the cradle 55 in one imaging room and the imaging mode is switched to the controlled mode,
- the control means 22 of the radiographic imaging apparatus 1 knows that the other party is the cradle 55 from the identification information of the other party device to which the connectors are connected as described above. Since it can be determined from now on that it is used for shooting in the other shooting room, in this case, the shooting mode can be configured to remain in the controlled mode without returning to the independent mode. .
- Example of automatic switching 2-1 when the radiographic image capturing apparatus 1 is taken out of a facility and brought into a patient's home or the like to be used for imaging, as described above, an operator such as a radiographer takes an imaging region of a patient as a subject. In many cases, it is convenient for the operator to perform the shooting while changing the shooting order and the like appropriately and freely according to the situation. Therefore, when the radiographic imaging apparatus 1 is used for imaging outside a facility such as a hospital, the control unit 22 of the radiographic imaging apparatus 1 automatically changes the radiographic imaging apparatus 1 from the controlled mode. It can be configured to switch to a self-supporting mode.
- the radiography mode is the self-supporting mode. It is left as it is.
- position measurement means such as GPS (Global Positioning System) is provided in the radiographic imaging apparatus 1, and the control means 22 of the radiographic imaging apparatus 1 is, for example, the hospital described above.
- the latitude and longitude information relating to the facility is stored in advance in the memory or program.
- the control unit 22 determines that the radiographic image capturing apparatus 1 exists outside a facility such as a hospital based on the position of the radiographic image capturing apparatus 1 measured by the position measuring unit, the radiographic image capturing is performed.
- the photographing mode of the device 1 can be configured to be switched from the controlled mode to the self-supporting mode.
- the position measuring means is configured to measure the moving distance and moving direction of the radiographic image capturing apparatus 1, and the control means 22 of the radiographic image capturing apparatus 1 For example, information regarding the shape of the facility when the storage of the radiographic imaging device 1 in the facility such as the hospital is centered in the east, west, north, and south is previously stored in a memory or a program. Then, based on the moving distance and moving direction of the radiographic image capturing apparatus 1 measured by the position measuring means, it is determined whether the radiographic image capturing apparatus 1 is present in a facility such as a hospital or outside the facility.
- the position measuring method and measuring means of the radiation imaging apparatus 1 are not limited to specific methods and means.
- the position of the radiographic image capturing apparatus 1 cannot be measured by GPS when the radiographic image capturing apparatus 1 is in a building such as a hospital or in a building such as a patient's home. There is a case. In such a case, if the last position of the radiographic image capturing apparatus 1 measured by GPD is a position away from a facility such as a hospital, the radiographic image capturing apparatus 1 is outside the facility. If the last position of the radiographic image capturing apparatus 1 is in a facility such as a hospital or a position close to the facility, the radiographic image capturing apparatus 1 can be determined to be present in the facility. Is possible.
- the imaging room R1 (see FIG. 3) is provided on a lower floor such as the basement, and the hospital room R3 (see FIG. 8) is provided on an upper floor. In many cases, the room R3 is provided on a different floor.
- the radiographic imaging apparatus 1 is brought into the hospital room R3 and used for rounds, as described above, a patient who cannot come to the radiology room R1 and has difficulty in physical body, such as a radiographer, etc.
- the control unit 22 of the radiographic imaging apparatus 1 automatically sets the radiographic imaging apparatus 1 in the imaging mode. It can be configured to switch from the control mode to the independent mode.
- height measurement means such as an altimeter for measuring the height (elevation) of the radiographic image capturing apparatus 1 is provided in the radiographic image capturing apparatus 1 to control the radiographic image capturing apparatus 1.
- the means 22 has information on the height of the floor where the photographing room R1 of the facility such as the hospital is provided and the height of the floor where the hospital room R3 is provided in the memory or the program in advance. Constitute.
- the control means 22 determines that the radiographic imaging apparatus 1 exists in the hospital room R3 and is used for rounds in the hospital room R3. When it does, it can be comprised so that the imaging
- the radiographic image capturing apparatus 1 can be configured to switch the imaging mode from the self-supporting mode to the controlled mode.
- the radiographic imaging apparatus 1 when the radiographic imaging apparatus 1 is used for rounds in the hospital room R3, for example, as shown in FIG. 10, a cable is extended from the round wheel 60 (see FIG. 8) to the connector 27 of the radiographic imaging apparatus 1.
- an operator such as a radiographer may be caught on the cable, and the cable may interfere with imaging. Therefore, when the radiographic image capturing apparatus 1 is used for rounds in the hospital room R3, the radiographic image capturing apparatus 1 and the console 58 on the round wheel 60 may be configured to communicate wirelessly.
- the control means 22 of the radiographic image capturing apparatus 1 wirelessly communicates with the console 28 via the antenna 29 by referring to information on the radio wave intensity measured by the communication unit 30 (see FIG. 2).
- the radiographic imaging apparatus 1 can be configured to automatically switch the radiographing mode from the controlled mode to the self-supporting mode. Also in this case, when the radiographic image capturing apparatus 1 is already in the self-supporting mode, the radiographing mode is left in the self-supporting mode.
- radio wave environment deteriorates in hospital room R3 as mentioned above, and performs radio
- the radiographic engineer 1 is generated based on the image data D or the like obtained later. There is a risk of forgetting to perform the process of associating the radiographic image with the imaging order information. Therefore, when the imaging mode of the radiographic image capturing apparatus 1 is the controlled mode, the control unit 22 of the radiographic image capturing apparatus 1 switches the radiographic image capturing apparatus 1 to the self-supporting mode as described above. It is preferable that the operator is notified that the shooting mode is switched from the controlled mode to the self-supporting mode.
- the indicator 28 (see FIG. 1) of the radiographic image capturing apparatus 1 is lit in a predetermined color, flashed in a predetermined manner, or a voice generation means (not shown) is provided in the radiographic image capturing apparatus 1. It is also possible to configure so as to generate and notify the sound. In addition, a signal is transmitted from the radiographic imaging apparatus 1 to the information portable terminal 70 (see FIG. 8) or the console 58, and the fact is displayed on the display unit 71 of the information portable terminal 70 or the display unit 58a of the console 58. It is also possible to configure such that notification is performed by generating a voice or the like.
- the radiographing apparatus 1 may be switched from the radiographing mode to the self-supporting mode, and the troublesome process of associating the radiographic image with radiographing order information later is performed. May want to wait until the radio wave environment is improved. In such a case, if the radiographic imaging apparatus 1 automatically switches the imaging mode to the self-supporting mode when the radio wave environment is poor as described above, the radiographic imaging apparatus 1 is convenient for such an operator. Can be bad.
- the radiographing mode of the radiographic image capturing apparatus 1 is controlled. Before switching from the mode to the self-supporting mode, notification is made that the radiographic imaging device 1 is switched from the controlled mode to the self-supporting mode as described above. It is possible to configure the radiographic imaging apparatus 1 to switch the imaging mode from the controlled mode to the self-supporting mode only when an input for authorizing switching is performed by operating the terminal 70 and the console 58.
- the radiographic image capturing apparatus 1 may be switched from the controlled mode to the self-supporting mode, and the operation to wait until the radio wave environment is improved rather than the process of associating the radiographic image with the radiographing order information later.
- the person does not make an input for approval (or makes an input for refusal), waits for the radio wave environment to improve while the radiographing apparatus 1 remains in the controlled mode, and the radio wave environment is improved. You can continue shooting.
- the radiographic image capturing apparatus 1 can be switched to the self-supporting mode or left in the controlled mode, and the radiographic image capturing apparatus 1 is easy to use for the operator.
- an operator such as a radiographer determines whether or not the radiographing device 1 can be switched from the controlled mode to the independent mode when the radio wave environment deteriorates in advance.
- the determination result can be input on the console 58 or the portable information terminal 70 or directly to the radiation image capturing apparatus 1.
- the control unit 22 of the radiographic image capturing apparatus 1 determines that the radio wave environment when wirelessly communicating with the console 28 via the antenna 29 has deteriorated, and sets the radiographic image capturing apparatus 1 to the radiographic mode.
- the radiographic imaging apparatus 1 can be configured to return the imaging mode to the default state. That is, when the default imaging mode of the radiographic image capturing apparatus 1 is set to the controlled mode, the imaging mode is switched from the independent mode to the controlled mode, and when the default imaging mode is set to the independent mode. Keeps the shooting mode in the independent mode.
- the control unit 22 of the radiographic image capturing apparatus 1 performs the operation of the radiographic image capturing apparatus 1 as described above.
- the radiographic imaging device 1 is notified that the imaging mode is switched from the self-supporting mode to the controlled mode, and when there is an input from the operator to approve the switching. It is also possible to configure so that the image capturing mode of the image capturing apparatus 1 is switched from the self-supporting mode to the controlled mode and returned to the default state. If comprised in this way, it will become possible to image
- the radiographic image capturing apparatus 1 performs the generation process of the image data D after the radiation is irradiated as shown in FIG. 6, for example, and transfers the data for the preview image to the console 58, as shown in FIG.
- the read process of the offset data O is performed by repeating the same sequence as the voltage application sequence shown in FIG. Then, the image data D, the offset data O, and the like are transferred to the console 58.
- the radiographic imaging apparatus 1 performs processing such as subtracting the offset data O from the image data D for each radiation detection element 7 to calculate the true image data D * described above, and then processing the processed data. It can also be configured to forward to console 58.
- the generation processing of the image data D is completed in the radiation image capturing apparatus 1, and the reading processing of the offset data O and the transfer of the image data D and the offset data O to the console 58 are being performed.
- an operator such as a radiographer operates the exposure switch 56 of the radiation irradiation device 57 (see FIGS. 3 and 8) to perform the next imaging, that is, irradiates the radiation for the next imaging. It can happen.
- the radiation An interlock release signal is transmitted from the image capturing apparatus 1 to the radiation irradiation apparatus 57, and radiation is irradiated for the first time at that time.
- an operator such as a radiologist has to wait for radiation during that time and cannot take a picture at his / her favorite timing.
- the control unit 22 of the radiographic image capturing apparatus 1 automatically sets the radiographic image capturing apparatus 1 from the controlled mode automatically. It can be configured to switch to a mode.
- the control means 22 of the radiographic image capturing apparatus 1 is, for example, an operator such as a radiographer during the reading process of the offset data O and the transfer of the image data D and the offset data O to the console 58.
- the imaging mode of the radiation image capturing device 1 is automatically changed from the controlled mode to the independent mode. It can be configured to switch.
- the control means 22 of the radiographic image capturing apparatus 1 switches the image capturing mode, and at the same time, reads out the offset data O performed at that time and transfers the image data D, offset data O, and the like to the console 58.
- the image data D and the offset data O are stored in its own storage means 23 (see FIG. 2) (independent mode). And after performing the reset process of the radiation detection element 7, etc., it can be comprised so that an interlock release signal may be transmitted to the radiation irradiation apparatus 57 promptly.
- the control unit 22 of the radiographic image capturing apparatus 1 determines 1 from the transmitted imaging order information.
- the imaging mode of the radiographic imaging apparatus 1 is automatically changed from the controlled mode to the self-supporting mode before imaging or at the start of imaging. It is also possible to configure to switch.
- control unit 22 of the radiographic image capturing apparatus 1 stores the image data D, the offset data O, and the like in the storage unit 23, and later, when connected to the console 58 by a wireless method or a wired method.
- the image data D is transferred to the console 58.
- the offset data O reading process is configured to be performed once or a plurality of times when a series of photographing is completed (or before the series of photographing is started in the latter case). Is possible. Also in these cases, the control means 22 of the radiographic image capturing apparatus 1 is configured to notify an operator such as a radiographer that the radiographic image capturing apparatus 1 is switched to the independent mode as described above. It is also possible to configure to switch to the self-supporting mode when there is an input from the operator to approve the switching.
- the radiographic imaging device 1 can be configured to switch the imaging mode between the controlled mode and the independent mode by a predetermined operation on the switch.
- the radiographic imaging apparatus 1 is provided with means for detecting vibration such as a vibration sensor (or acceleration sensor), and an operator such as a radiographer can operate the housing of the radiographic imaging apparatus 1.
- a vibration sensor or acceleration sensor
- an operator such as a radiographer can operate the housing of the radiographic imaging apparatus 1.
- the control means 22 of the radiographic imaging apparatus 1 detects it via the above-described means, and the radiographic image is detected. It is also possible to configure so that the photographing mode of the photographing apparatus 1 can be switched between the controlled mode and the independent mode.
- a means for detecting sound such as a microphone is provided in the housing 2 of the radiation image capturing apparatus 1, and an operator such as a radiation engineer emits a predetermined word, sound, or the like, so that the radiation image capturing apparatus It is also possible to configure so that the one control means 22 can detect it via the above-mentioned means and can switch the imaging mode of the radiographic imaging apparatus 1 between the controlled mode and the independent mode. .
- a predetermined operation is performed from the information portable terminal 70 to the radiographic image capturing apparatus 1 by performing a processing operation on the information portable terminal 70 carried by the operator E such as a radiologist. It is also possible to configure so that the control means 22 of the radiographic imaging device 1 can switch the imaging mode of the radiographic imaging device 1 between the controlled mode and the self-supporting mode based on the signal transmitted. is there.
- the method of manually switching the imaging mode of the radiation imaging apparatus 1 by an operator such as a radiologist is not limited to the above-described methods.
- an operator such as a radiologist can manually switch the radiographing mode of the radiographic imaging device 1, so that, for example, during imaging in the controlled mode,
- an operator such as a radiologist manually switches the imaging mode of the radiographic image capturing apparatus 1 to the self-supporting mode and performs additional imaging to obtain image data D and the like. It is possible to continue the imaging in the controlled mode by saving in the storage means 23 and manually switching the imaging mode of the radiographic imaging apparatus 1 to the controlled mode again.
- the radiographic image capturing apparatus 1 can perform image capturing in the same manner as the conventional CR cassette imaging.
- the radiographic image capturing apparatus 1 can be configured to switch the radiographing mode to the self-supporting mode in advance. It is also possible for the operator such as a radiologist to gradually switch the imaging mode to the controlled mode and increase the number of times of imaging, thereby gaining experience in imaging in the imaging mode. .
- the radiographic imaging apparatus 1 is exported in a state in which the radiographic imaging apparatus 1 is switched to the self-supporting mode in advance, A man or the like asks for use until it is officially installed, and a service man or the like asks to use the radiographic imaging device 1 under the control of the console 58, that is, the radiographic imaging device 1 in the controlled mode.
- the radiographic imaging apparatus 1 can be configured so that the radiographing mode of the radiographic imaging apparatus 1 can be switched between the self-supporting mode and the controlled mode.
- the console 58 is not installed in a facility in an emerging country or the like, the image data D and the like captured by the radiation image capturing apparatus 1 in the independent mode are transferred to a Japanese service station or the like via the Internet or the like.
- a Japanese service station or the like When generating radiation images in Japan and sending them to facilities in emerging countries, for example, it is desirable to transfer the image data D by encrypting it or using a public key. Further, it is also possible to transfer the image data D and the radiographic image with noise (watermark) that cannot be removed unless predetermined processing is performed.
- the photographing mode can be switched to the controlled mode as described above.
- the radiographic image capturing apparatus 1 itself detects that radiation irradiation has been started and performs radiography without exchanging signals or the like between the radiographic image capturing apparatus 1 and the radiation irradiation apparatus 57.
- the radiographic imaging device 1 and the radiation irradiation device 57 instead of the following determination processing (step S2) on whether or not the start of radiation irradiation has been detected.
- the control unit 22 of the radiographic image capturing apparatus 1 (described as FPD1 in FIG. 11) performs pre-processing for each functional unit of the radiographic image capturing apparatus 1 for imaging.
- processing for detecting the start of radiation irradiation is performed (step S1).
- a specific method for detecting the start of radiation irradiation by the radiographic imaging apparatus 1 itself for example, a method described in the above-mentioned publication or international publication can be used.
- step S2 When the control means 22 detects that radiation irradiation from the radiation source 52 (see FIGS. 3 and 8) of the radiation irradiation apparatus 57 has started (step S2; YES), the scanning drive means as described above. After applying a turn-off voltage from each of the 15 gate drivers 15b (see FIG. 2) to each scanning line 5 to turn off each TFT 8 to shift to the charge accumulation state, a turn-on voltage is applied from the gate driver 15b to each scanning line 5. The generation processing of the image data D is performed by sequentially applying them (step S3).
- the control unit 22 continues to repeat the same sequence in a state where no radiation is irradiated to perform the offset data O reading process.
- the offset data O may be read before shooting, the read offset data O may be stored in the storage unit 23 and the like, and the stored offset data O may be used in the following image correction. Is possible.
- the control means 22 performs an image correction process (step S4).
- the image correction process may be performed by the console 58 instead of the radiation image capturing apparatus 1.
- image data D, offset data O, and the like as raw data are transferred from the radiation image capturing apparatus 1 to the console 58 (step S7).
- data is often stored in the storage unit 23 of the radiation image capturing apparatus 1. Therefore, in order to reduce the data storage amount as much as possible, the radiographic imaging apparatus 1 can be configured to perform image correction processing (step S4).
- the control unit 22 calculates true image data D * from the image data D and the offset data O as described above, and performs gain correction or defect on the calculated true image data D * .
- Image correction such as correction (including point defects and line defects) and gradation processing is performed to generate a radiation image p.
- appropriate image correction such as correction of image unevenness due to non-illustrated scintillator sensitivity unevenness is also performed.
- the control unit 22 stores the data of the radiographic image p corrected as described above as the storage unit 23. (Step S6) to prepare for the next shooting (step S1).
- the data of the radiographic image p subjected to the image correction until the radiographic imaging device 1 is connected to the console 58 or the image data D or the offset data O when no image correction is performed).
- the storage means 23 stores the data of the radiographic image p corrected as described above as the storage unit 23.
- the control means 22 transfers the data of the radiation image p to the console 58 (step S7).
- the data of the radiographic image p captured so far is stored in the storage unit 23
- the radiographic image capturing apparatus 1 is connected to the console 58 by a wired system or a wireless system (step S5; YES)
- the data of those radiographic images p are transferred to the console 58 (step S7).
- the radiographic imaging apparatus 1 When radiography is performed in a state where the radiographic imaging apparatus 1 is connected to the console 58 by a wired system or a wireless system (step S5; YES), the radiographic imaging apparatus 1 is in a self-supporting imaging mode. In this case, the radiographic image p data is transferred from the radiographic imaging device 1 to the console 58 for each radiographing.
- the console 58 does not associate the imaging order information with the radiation image p in the self-supporting mode. Therefore, it is necessary for a medical worker such as a radiographer to associate (also referred to as post-registration) the imaging order information and the radiation image p on the console 58.
- the console 58 performs image processing on the radiographic image p (step S8).
- the console 58 is a periodic noise component superimposed on the radiographic image p, such as moire fringes generated in the radiographic image p when a grid (not shown) is used during imaging.
- Image processing that requires complicated processing, such as removal by performing arithmetic processing such as Fourier transform, is performed.
- the process up to the image processing is automatically performed by the console 58, but the process of associating the imaging order information with the radiation image p (step S9) is performed by a medical professional such as a radiographer as described above. Done by a person.
- the processing for associating the radiographing image p with the radiographing order information may be performed for each radiographing.
- the association process may be performed collectively after a series of photographing.
- the medical staff obtains necessary imaging order information from the HIS or RIS at this time or before that time. Further, if the shooting order information has not been created, processing such as creation and input to the console 58 is performed.
- step S9 When a medical worker such as a radiographer finishes the process of associating the imaging order information with the radiographic image p (step S9) and performs the confirmation process (step S10), the console 58 performs the associated imaging.
- the order information and the radiation image p are transmitted to the above-described external system such as PACS (step S11), and the process is terminated.
- the radiographic imaging device 1 when the radiographic imaging device 1 performs imaging in the self-supporting mode, the radiographic imaging device 1 can be configured to perform all the processing without performing the processing by the console 58 as described above.
- step S8 the image processing (step S8) performed on the console 58 and the association processing between the imaging order information and the radiation image p (step S9).
- the confirmation process (step S10) is performed on the radiographic image capturing apparatus 1 (described as FPD1 in FIG. 12).
- step S10 a confirmation process
- the control means 22 of the radiographic image capturing apparatus 1 associates the radiograph image p with the radiograph image p automatically performed for each radiographing (step S9).
- the process of confirming and confirming (step S10) may be configured to be performed collectively after a series of photographing.
- the radiation image capturing apparatus 1 when the radiation image capturing apparatus 1 is provided with a display unit as in the radiation image capturing apparatus described in Patent Document 2 described above, the imaging order information and the radiation image p are displayed on the display unit.
- the display unit is not provided in the radiographic image capturing apparatus 1, for example, the radiographic image capturing apparatus 1 transfers the information to the portable information terminal 70 (see FIG. 8). It is also possible to transmit the necessary data such as the radiation image p and the imaging order information, display the data on the display unit 71 of the information portable terminal 70, and perform the operation on the information portable terminal 70.
- control means 22 of the radiographic image capturing apparatus 1 obtains necessary photographing order information in advance from HIS, RIS, etc., and photographing is performed in the order of photographing order information.
- the case where is assumed is shown.
- an operator such as a radiographer can perform imaging while freely changing the imaging order of imaging regions according to the situation.
- the control means 22 of the radiographic image capturing apparatus 1 performs not only the confirmation process (step S10) but also the association between the radiographing order information and the radiographic image p (step S9) after a series of radiographing. It is also possible to configure as described above.
- the image processing (step S8) requires complicated arithmetic processing such as Fourier transform, and may take time. Therefore, in order to avoid a situation in which the start of the next shooting is awaited until the image processing is completed, the image processing (step S8) is also configured to be performed collectively after a series of shootings. It is also possible.
- the control unit 22 of the radiographic image capturing apparatus 1 is configured so that the radiographic image capturing apparatus 1 is not connected to an external system such as PACS by a wired method or a wireless method (step S12; NO).
- the associated imaging order information and the radiation image p that have been confirmed are stored in the storage unit 23 (step S6).
- the radiographic imaging device 1 is connected to an external system such as PACS by a wired method or a wireless method (step S12; YES)
- the obtained imaging order information and the radiation image p are configured to be transmitted (step S11).
- the console 58 displays a thumbnail image of the radiographic image p on the display unit 58a. As shown in FIG. 13, each thumbnail image can be configured to display the ID in the vicinity thereof.
- medical staffs such as a radiographer
- an operator such as a radiographer
- the number of the imaging mistake is recorded in the same way as when imaging was performed normally, and a medical note such as a radiologist is recorded.
- An operator can easily determine that there is an imaging error by looking at the thumbnail image of the radiation image p (including imaging errors) and the number that is an ID on the display unit 58a of the console 58. It is possible to easily and accurately grasp which image is the re-taken radiographic image p.
- a medical worker such as a radiographer displays an ID (number) displayed in the vicinity of the thumbnail image and an ID attached to the irradiation record or the like. It is also possible to configure so that the radiation image p and the imaging order information are associated with each other by comparing (number) with each other or comparing the barcode with a barcode reader. In the case of these configuration examples 1-2 and 1-3, it is possible to obtain the same beneficial effect as in the case of the above configuration example 1.
- the date and time of imaging eg, the date and time when the irradiation start signal is received from the radiation irradiation device 57 or the date and time when the irradiation start is detected
- the date and time of imaging is added to the image data D and the data of the radiation image p and stored.
- an operator such as a radiographer takes note of the date and time when the exposure switch 56 of the radiation irradiation device 57 is fully pressed together with the photographing contents in an irradiation record, a notepad, a portable information terminal 70 or the like.
- each thumbnail image is shown in the vicinity thereof in FIG.
- the shooting date and time can be displayed instead of the numbers 1, 2,.
- radiographic image p and the imaging order information can be easily and accurately associated with each other by comparing the imaging date and time and the imaging content noted in the above. In this case as well, as in the case of the above-described configuration example 1, it is possible to easily identify an imaging mistake and easily and accurately grasp which image is the radiographic image p to be retaken corresponding thereto. .
- the imaging date and time that has elapsed with the RTC of the radiographic imaging apparatus 1 is stored in the image data D and the radiographic image p, and an operator such as a radiographer can The date and time when the exposure switch 56 of the irradiation device 57 is fully pressed is recorded in the irradiation record, memo pad, portable information terminal 70 and the like together with the photographing contents.
- the console 58 calculates the imaging interval from the time when the first data is captured until the next data is captured from the imaging date and time attached to the data (the data of the image data D and the radiation image p).
- the calculated imaging interval is equal to or less than the threshold value set to 3 minutes or the like, it can be determined that these data are based on imaging performed on the same patient.
- the radiographic images p (p1 to p3 in FIG. 14) determined to correspond to the same patient as described above are used as the radiographic images p ( In FIG. 14, separately from p4), radiation images p corresponding to the same patient can be grouped and displayed.
- FIG. 14 shows a case where the thumbnail images of the grouped radiographic images p are displayed side by side.
- the present invention is not limited to this, and illustration is omitted.
- the grouped radiographic images p may be configured so as to indicate that they are grouped by displaying thumbnail images of the radiographic images p surrounded by a frame, and the radiographic images p corresponding to the same patient.
- the display method for grouping and displaying the images is appropriately determined.
- the console 58 when displaying the thumbnail image of the radiation image p on the display unit 58a in the process of associating the radiation image p with the imaging order information, the console 58, for example, near the thumbnail image In addition, the patient name specified as described above can be displayed.
- medical personnel such as a radiographer, will compare the patient name displayed in the thumbnail image of the radiographic image p or its vicinity with the patient name, imaging
- the radiation image p and the imaging order information can be easily and accurately associated.
- the control unit 22 of the radiographic image capturing apparatus 1 detects the imaging location (for example, the latitude and longitude at the time of receiving the irradiation start signal from the radiation irradiating apparatus 57, or the radiation irradiation start). (Latitude, longitude, etc. at the time of detecting) is added to the data and stored. In addition, information on the latitude and longitude of each patient's address is input to the console 58 in advance.
- the imaging location for example, the latitude and longitude at the time of receiving the irradiation start signal from the radiation irradiating apparatus 57, or the radiation irradiation start.
- the console 58 displays, for example, the radiographic image p.
- the patient who is the subject of radiographic image p is identified from the information on the latitude and longitude of the incident and the latitude and longitude information of each patient's address, and is specified in the vicinity of the thumbnail image of the radiographic image p. It can be configured to display the patient name.
- a medical worker such as a radiologist can display the thumbnail image of the radiographic image p or the patient name displayed in the vicinity thereof and the patient specified in the imaging order information. It is possible to easily and accurately associate the radiographic image p with the imaging order information by comparing names, imaging contents, and the like.
- the patient can be specified based on information such as an address calculated from the latitude and longitude. Yes, it is not limited to using latitude and longitude information.
- the radiographic imaging device when a plurality of access points AP are installed in the facility, for example, as shown in FIG. 15, the radiographic imaging device according to the distance between the current position of the radiographic imaging device 1 and each access point AP.
- the radio wave intensity I between 1 and each access point AP changes.
- the magnitude of the radio field intensity I between the access points AP-A and AP-B measured by the communication unit 30 (see FIG. 2) of the radiographic image capturing apparatus 1 Based on the ratio of the radio field intensity I between the access point AP-A and the radio field intensity I between the access point AP-B, etc., the position of the radiographic imaging apparatus 1 can be known, and imaging can be performed in any room R3. You can see if it was done.
- the control means 22 of the radiographic image capturing apparatus 1 includes a table in which the magnitude and ratio of the radio wave intensity I between each access point AP and the room R3 are associated with each other in advance.
- the radio wave intensity I between each access point AP measured by the communication unit 30 at the time when it is performed (for example, when the irradiation start signal from the radiation irradiation device 57 is received or when the irradiation start is detected). Based on the size, ratio, etc., the room R3 where the image was taken is determined. Then, when the data is stored in the storage means 23, the identification information or the like of the determined room R3 is attached to the data and stored.
- the console 58 displays, for example, the radiographic image p.
- the identification information of the accompanying room R3, the name of the room R3 determined based on the identification information, and the like can be displayed in the vicinity of the thumbnail image of the radiation image p.
- medical staffs such as a radiographer, will specify the patient who is the imaging object from the thumbnail image of the radiographic image p and the identification information and name of the hospital room R3 displayed in the vicinity thereof, and the radiographic image It is possible to easily and accurately associate p with the shooting order information.
- the control unit 22 of the radiographic image capturing apparatus 1 includes map information in a facility such as a hospital in advance, and each access point AP measured by the communication unit 30 at the time of capturing. It is also possible to configure so as to identify the room R3 where the radiographing was performed based on the magnitude and ratio of the radio wave intensity I between and the above map information, etc.
- the method for specifying the hospital room R3 in which imaging is performed based on the radio wave intensity I is not limited to the above method.
- the console 58 can be configured to reproduce the audio information attached to the radiation image p.
- medical workers such as a radiographer, will specify the patient who is the imaging target from the thumbnail image of the radiographic image p and the reproduced sound, and the radiographic image p and the radiograph corresponding to the thumbnail image will be captured. Correspondence with order information can be easily and accurately performed.
- the console 58 identifies the patient's name by voice recognition or the like from the voice information attached to the data as described above, and determines the imaging order information in which the identified patient name is specified.
- the radiation image p corresponding to the thumbnail image can be automatically associated with the imaging order information. Even in such a configuration, confirmation by a medical staff such as a radiologist is necessary.
- the patient ID may be recorded on an irradiation record (for example, an edge portion thereof) prepared for each photographing with a transparent or colored paint (for example, titanium-based paint) having a radiation transmittance different from that of the irradiation record itself.
- a transparent or colored paint for example, titanium-based paint
- information such as the patient's name (numbers, letters, barcodes, etc.) are applied in advance with a printer or the like.
- imaging is performed with an irradiation record interposed between the radiation incident surface R (see FIG. 1) of the radiographic imaging apparatus 1 and the subject, and the patient ID described in the above-described paint or the like in the radiographic image p. It is also possible to configure so that, for example, it is imprinted.
- the position of the irradiation record with respect to the subject or the radiographic image capturing apparatus 1 is adjusted so that the patient ID or the like is imprinted on the edge portion or the like in the radiographic image p where an imaging target such as a lesion is not captured.
- an irradiation record holder is attached to the radiation incident surface R of the radiographic imaging apparatus 1 with a material such as plastic that does not affect the radiation transmittance, and the irradiation record is inserted into the holder.
- the position of the irradiation record is shifted with respect to the radiation incident surface R of the radiographic image capturing apparatus 1 so that the patient ID or the like is not reflected in the radiographic image p, or the patient ID or the like overlaps with the imaging target such as a lesion. It is possible to accurately prevent this.
- the console 58 recognizes the patient ID or the like captured in the radiographic image p as described above by, for example, image analysis or the like, and automatically associates the radiographic image p with the imaging order information. It is also possible to configure so that Even in such a configuration, confirmation by a medical staff such as a radiologist is necessary.
- the imaging order information and radiation manually performed by a medical worker such as a radiographer which is necessary when the imaging mode of the radiation imaging apparatus 1 is switched to the self-supporting mode.
- the association with the image p can be performed more accurately and easily.
- data image data D or data of the radiographic image p
- data is usually obtained every time imaging is performed, regardless of whether the imaging mode is the self-supporting mode or the controlled mode.
- the radiographic image capturing apparatus 1 is switched between the self-supporting mode and the controlled mode while the ID is simply attached in the order of imaging. It is not possible to know which data was taken in the controlled mode and which data was taken in the controlled mode.
- control means 22 of the radiographic image capturing apparatus 1 resets the ID attached to the data by incrementing from 1 at the time of switching the radiographing mode of the radiographic image capturing apparatus 1, and sets the ID to be added from 1 It can be configured to start over. For example, after 10 shots are taken in the controlled mode, the mode is switched to the self-supporting mode, the 3 shots are taken, and the mode is further switched to the controlled mode to continue the shooting. ID is attached to data like 1, 2, 3, 1, 2, 3,.
- the first ID to be attached to the data every time the imaging mode is switched is set to 100 or 1000 intervals, for example. It is also possible to make it increase and attach at predetermined intervals, such as.
- the ID to be added is increased at, for example, 100 intervals every time the shooting mode is switched, for example, 10 shots are taken in the controlled mode, and then the mode is switched to the self-supporting mode.
- the ID is converted into data like..., 8, 9, 10, 101, 102, 103, 201, 202, 203,. It will be incidental.
- an ID that is incremented in the form of “A000XX” is attached to data shot in the self-supporting mode
- an ID that is incremented in the form of “S000XX” is attached to the data shot in the controlled mode. It is also possible.
- a plurality of radiographic image capturing apparatuses 1 may be used for imaging.
- the radiographing mode of each radiographic image capturing device 1 is configured to be switched individually, the radiographic image capturing device 1 in the self-supporting mode and the radiographic image capturing device 1 in the controlled mode are mixed. It becomes a state to do.
- the single radiographic imaging device 1 is automatically used.
- the imaging mode is switched to the self-supporting mode by an operation of an operator such as a radiographer, it is desirable that the other radiographic image capturing apparatuses 1 are configured to simultaneously switch the imaging mode to the self-supporting mode.
- radiographic image capturing apparatus 1 When one radiographic image capturing apparatus 1 switches the radiographing mode from the self-supporting mode to the controlled mode automatically or by an operation of an operator such as a radiographer, the other radiographic image capturing apparatuses 1 also perform the radiographic mode simultaneously. Is preferably configured to switch to a controlled mode.
- the time zone in which the imaging mode is the self-supporting mode that is, from what hour to what time to what time the self-supporting mode
- all the radiographic imaging devices used for imaging in that time zone That is, the first shooting mode is the self-supporting mode. Therefore, a medical worker such as a radiographer determines whether or not manual association between the radiographic image p and imaging order information is necessary only by looking at the imaging time information attached to the radiographic image p.
- the process of associating the radiation image p with the imaging order information can be performed accurately without being mistaken or forgotten.
- the radiographic engineer is notified that the imaging modes of all the radiographic image capturing apparatuses 1 are switched simultaneously. It is possible to configure so that the radiographing modes of all the radiographic imaging apparatuses 1 are switched all at once only when an operator such as an operator approves the switching.
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Abstract
Description
二次元状に配列され、照射された放射線の線量に応じた電荷を発生させる複数の放射線検出素子と、
少なくとも前記各放射線検出素子から前記電荷を読み出して画像データを生成するように制御する制御手段と、
を備える放射線画像撮影装置において、
撮影モードを、外部のコンソールによる制御を受ける被制御モードと、前記コンソールによる制御を受けずに自立して撮影を行う自立モードとの間で切り替え可能とされており、
被制御モードと自立モードとの間で撮影モードが切り替わると、前記制御手段は、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えることを特徴とする。
二次元状に配列され、照射された放射線の線量に応じた電荷を発生させる複数の放射線検出素子と、
少なくとも前記各放射線検出素子から前記電荷を読み出して画像データを生成するように制御する制御手段と、
を備える放射線画像撮影装置と、
前記放射線画像撮影装置の動作を制御可能なコンソールと、
を備える放射線画像撮影システムにおいて、
前記放射線画像撮影装置は、撮影モードを、前記コンソールによる制御を受ける被制御モードと、前記コンソールによる制御を受けずに自立して撮影を行う自立モードとの間で切り替え可能とされており、
被制御モードと自立モードとの間で撮影モードが切り替わると、前記放射線画像撮影装置の前記制御手段は、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えることを特徴とする。
本実施形態に係る放射線画像撮影装置の基本的な構成等について説明する。図1は、放射線画像撮影装置の外観を示す斜視図である。
本実施形態に係る放射線画像撮影装置のより詳細な構成等について説明する前に、放射線画像撮影装置1を備える放射線画像撮影システムの構成例について説明する。図3は、放射線画像撮影システム50が撮影室R1に構築されている場合の構成例を示す図である。
次に、本実施形態に係る放射線画像撮影装置1における被制御モードおよび自立モードについて説明するとともに、本実施形態に係る放射線画像撮影装置1の特有の構成等について説明する。また、本実施形態に係る放射線画像撮影装置1の作用についてもあわせて説明する。
そこで、本発明では、放射線画像撮影装置1は、撮影モードを、被制御モードと自立モードとの間で切り替えることができるようになっている。そして、放射線画像撮影装置1の制御手段22は、被制御モードと自立モードとの間で撮影モードが切り替わると、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えるように構成されている。
以上のように、本実施形態に係る放射線画像撮影装置1や放射線画像撮影システム50によれば、放射線画像撮影装置1の撮影モードを、外部のコンソール58による制御を受ける被制御モードと、コンソール58による制御を受けずに自立して撮影を行う自立モードとの間で切り替えることができるように構成されており、被制御モードと自立モードとの間で撮影モードが切り替わった場合に、制御手段22は、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えるように構成した。
[自動切り替えの場合]
なお、放射線画像撮影装置1の撮影モードは、放射線画像撮影装置1の制御手段22が自動的に切り替えるように構成することも可能であり、放射線技師等の操作者が手動で行うように構成することも可能である。そして、放射線画像撮影装置1の撮影モードを制御手段22が自動的に切り替えるように構成する場合、制御手段22は、撮影モードを、放射線画像撮影装置が使用される状況に適した撮影モードに自動的に切り替えるように構成することが可能である。以下、まず、放射線画像撮影装置1の制御手段22が自動的に切り替える場合について、いくつかの例を挙げて説明する。
例えば、放射線画像撮影装置1を撮影室R1で使用する際には、放射線画像撮影装置1をコンソール58による制御の下で撮影を行った方が、撮影をスムーズに行うことができ、放射線画像と撮影オーダー情報との対応付けをコンソール58が行ってくれる方が放射線技師等の操作者にとっては楽である。そのため、例えば、放射線画像撮影装置1を撮影室R1で使用する場合には、放射線画像撮影装置1の撮影モードが自動的に自立モードから被制御モードに切り替わると操作者にとっても都合が良い。
また、例えば放射線画像撮影装置1を施設から持ち出し、患者の自宅等に持ち込んで撮影に使用するような場合には、前述したように、放射線技師等の操作者が、被写体である患者の撮影部位の撮影順等を、状況に応じて適切かつ自由に変えながら撮影を行うことができるように構成した方が、操作者にとって都合がよい場合が少なくない。そこで、放射線画像撮影装置1が病院等の施設外で撮影に使用される際には、放射線画像撮影装置1の制御手段22が、放射線画像撮影装置1の撮影モードを自動的に被制御モードから自立モードに切り替えるように構成することが可能である。なお、この[自動切り替えの例2-1]や後述する[自動切り替えの例2-2]の場合、放射線画像撮影装置1の撮影モードがすでに自立モードである場合には、撮影モードは自立モードのままとされる。
また、特に規模が大きな病院等の施設では、撮影室R1(図3参照)が地下等の低層の階に設けられ、病室R3(図8参照)が上層の階に設けられるなど、撮影室R1と病室R3が別の階に設けられている場合が多い。そして、放射線画像撮影装置1を病室R3に持ち込んで回診に使用する場合には、前述したように、撮影室R1に来ることができず体の自由がきかない患者等に対して、放射線技師等の操作者が、被写体である患者の撮影部位の撮影順等を、状況に応じて適切かつ自由に変えながら撮影を行うことができるように構成した方が、操作者にとって都合がよい場合が少なくない。
一方、上記のように放射線画像撮影装置1が撮影室R1に存在する際だけでなく、病室R3に存在しており病室R3における回診に使用されている場合であっても、例えば図8に示したように、回診車60にポータブルのコンソール58を搭載する等してコンソール58も病室R3に持ち込んで撮影を行うように構成される場合もある。このような場合には、放射線画像撮影装置1の撮影モードは、撮影室R1だけでなく病室R3においても被制御モードである方が放射線技師等の操作者にとっては都合がよい。
ところで、放射線画像撮影装置1は、例えば図6に示したように放射線が照射された後で画像データDの生成処理を行い、プレビュー画像用のデータをコンソール58に転送するとともに、図7に示したように、放射線が照射されない状態で図6に示した電圧印加のシーケンスと同じシーケンスを繰り返してオフセットデータOの読み出し処理を行う。そして、画像データDやオフセットデータO等をコンソール58に転送する。なお、放射線画像撮影装置1で、放射線検出素子7ごとに画像データDからオフセットデータOを減算して前述した真の画像データD*を算出する等の処理を行った後、処理済みのデータをコンソール58に転送するように構成することも可能である。
一方、上記の各例では、放射線画像撮影装置1の制御手段22が、放射線画像撮影装置1の撮影モードを自動的に切り替える場合について説明したが、放射線技師等の操作者が手動で切り替えるように構成することも可能である。この点について、以下、いくつかの例を挙げて説明する。
次に、放射線画像撮影装置1の撮影モードが自立モードである場合の放射線画像撮影装置1とコンソール58における処理の構成例について説明する。
図11のフローチャートに示すように、放射線画像撮影装置1(図11ではFPD1と記載されている。)の制御手段22は、放射線画像撮影装置1の各機能部が撮影に向けての前処理を終了した後の待機状態で、放射線の照射開始を検出する処理を行う(ステップS1)。なお、放射線画像撮影装置1自体で放射線の照射開始を検出する具体的な方法については、例えば前述した公報や国際公開に記載された方法等を用いることが可能である。
一方、放射線画像撮影装置1が自立モードで撮影を行う場合、上記のようなコンソール58による処理を経ずに、放射線画像撮影装置1が全ての処理を行うように構成することも可能である。
上記のように放射線画像撮影装置1の撮影モードを自立モードに切り替えた場合、放射線技師等の医療従事者が撮影オーダー情報と放射線画像pとを手動で対応付けることが必要になる。その際、対応付けをより的確に、或いはより容易に行うようにするための構成例について、以下、いくつかの構成例を挙げて具体的に説明する。
例えば、放射線画像撮影装置1の制御手段22は、自立モードで撮影を行って画像データDや放射線画像pのデータを放射線画像撮影装置1の記憶手段23(図2参照)に保存する際に、データに対して、撮影ごとにインクリメントされる識別情報すなわち1、2、…等のIDを付帯させて保存する。また、放射線技師等の操作者は、自立モードで撮影を行う際に、照射録に、撮影を行った順に1、2、…と番号をメモしたり、或いはメモ帳や携帯情報端末70等に、撮影を行った順に1、2、…と番号をメモするとともに、患者名や撮影部位等の撮影内容をメモしておく。
なお、上記の構成例1のように構成する場合、放射線画像撮影装置1の制御手段22がデータに付帯させたID(番号)と、放射線技師等の操作者がメモした番号とが食い違うと、放射線画像pと撮影オーダー情報との対応付けを誤る可能性がある。そのため、例えば、放射線画像撮影装置1にスピーカー等の発声手段を設けておき、放射線画像撮影装置1の制御手段22がデータに付帯させたID(番号)を発声手段で音声として発声させ、放射線技師等の操作者がそれを聞き取ってメモするように構成することも可能である。
また、図示を省略するが、例えば、回診車60上(図8参照)や撮影室R1内(図3参照)等にラベルプリンターに設置しておき、放射線画像撮影装置1から送信されてきた情報をラベルプリンターでシールに印刷できるように構成する。そして、放射線画像撮影装置1の制御手段22は、データに付帯させたID(番号)の情報をラベルプリンターに送信して、ラベルプリンターでシールにそのID(番号)やそれに対応するパーコード等をプリントする。そして、放射線技師等の操作者は、ID(番号)やバーコード等がプリントされたシールを照射録やメモ帳等に貼付する。
上記の構成例1(構成例1-2、1-3を含む。以下同じ。)におけるIDや番号の代わりに、放射線画像撮影装置1に設けられているリアルタイムクロック(real-time clock、RTC)で経時した撮影日時(例えば放射線照射装置57からの照射開始信号を受信した日時、或いは放射線の照射開始を検出した日時等)を画像データDや放射線画像pのデータに付帯させて保存する。また、放射線技師等の操作者は、放射線照射装置57の曝射スイッチ56を全押しした日時を照射録やメモ帳、携帯情報端末70等に撮影内容とともにメモしておく。
また、上記の構成例2のように、放射線画像撮影装置1のRTCで経時した撮影日時を画像データDや放射線画像pのデータに付帯させて保存するとともに、放射線技師等の操作者は、放射線照射装置57の曝射スイッチ56を全押しした日時を照射録やメモ帳、携帯情報端末70等に撮影内容とともにメモしておく。
また、入院患者や経過観察の患者に対して同一の撮影部位を定期的に撮影する場合、撮影される放射線画像pは、通常、前回撮影した放射線画像pと同じような画像になる。そこで、例えば、コンソール58が、今回撮影された放射線画像pと、過去1カ月等の所定の期間内に撮影された放射線画像pとをマッチングする等して今回撮影された放射線画像pの撮影対象である患者を特定する。
ところで、上記の放射線画像撮影装置1の撮影モードの切り替え(被制御モードと自立モードとの間での切り替え)の際、前述したように、放射線画像撮影装置1内にGPSを設けておき、GPSが測定した緯度や経度から放射線画像撮影装置1が病院等の施設の中に存在するか施設外に存在するかで撮影モードを切り替えるように構成することが可能であることを説明した。
一方、撮影対象である患者が入院患者であり、病院等の施設内の病室R3(図8参照)で撮影を行ったような場合、放射線画像撮影装置1と、施設内に設置されているアクセスポイントAPとの間で信号の送受信を行い、その際の電波強度に基づいて放射線画像撮影装置1の施設内での位置を特定して撮影対象の患者を特定するように構成することも可能である。
また、医療現場では、患者の取り違え等を防止するために患者の氏名を確認することが励行されている。そこで、図示を省略するが、例えば、放射線画像撮影装置1にマイクロフォンを設けておき、放射線技師等の操作者が、患者の氏名を呼んで声掛けする際や患者自身に指名を名乗らせる際に、その音声を放射線画像撮影装置1のマイクロフォンで録音し、放射線画像撮影装置1でデータを記憶手段23に保存する際に、録音した音声情報をデータに付帯させて保存する。
また、例えば、撮影ごとに用意される照射録(例えばその縁端部等)に、照射録自体とは放射線の透過率が異なる透明或いは有色の塗料(例えばチタン系等の塗料)等で患者IDや患者の氏名等の情報(数字や文字或いはバーコード等)を、予めプリンター等で塗布しておく。そして、放射線画像撮影装置1の放射線入射面R(図1参照)と被写体との間に照射録を介在させた状態で撮影を行い、放射線画像p中に上記の塗料等で記載された患者ID等を写し込むように構成することも可能である。
上記のように、放射線画像撮影装置1では、撮影モードが自立モードであっても被制御モードであっても、通常、撮影が行われるごとに、データ(画像データD或いは放射線画像pのデータ)にIDが付帯されて管理されるように構成される。その際、上記のように放射線画像撮影装置1の撮影モードが自立モードと被制御モードとの間で切り替わる一方で、IDを単に撮影順に付帯させるように構成すると、IDを見ただけでは、どのデータが自立モードで撮影されたものであり、どのデータが被制御モードで撮影されたものかが分からなくなる。
なお、上記の実施形態や各構成例等において、撮影に複数の放射線画像撮影装置1が使用される場合がある。そして、このような場合に、各放射線画像撮影装置1の撮影モードを個別に切り替えるように構成すると、撮影モードが自立モードの放射線画像撮影装置1と被制御モードの放射線画像撮影装置1とが混在する状態になる。
7 放射線検出素子
22 制御手段
23 記憶手段
27 コネクター
29 アンテナ
50 放射線画像撮影システム
51b、55a 撮影室内に存在するコネクター
53 アクセスポイント
58 コンソール
D 画像データ
p 放射線画像
R1 撮影室
R3 病室
Claims (12)
- 二次元状に配列され、照射された放射線の線量に応じた電荷を発生させる複数の放射線検出素子と、
少なくとも前記各放射線検出素子から前記電荷を読み出して画像データを生成するように制御する制御手段と、
を備える放射線画像撮影装置において、
撮影モードを、外部のコンソールによる制御を受ける被制御モードと、前記コンソールによる制御を受けずに自立して撮影を行う自立モードとの間で切り替え可能とされており、
被制御モードと自立モードとの間で撮影モードが切り替わると、前記制御手段は、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えることを特徴とする放射線画像撮影装置。 - 前記制御手段は、
前記被制御モードでは、撮影後、前記各放射線検出素子から読み出した前記画像データまたは前記画像データを画像補正した後の放射線画像のデータをただちに前記コンソールに送信し、
前記自立モードでは、撮影後、前記各放射線検出素子から読み出した前記画像データまたは前記放射線画像のデータを記憶手段に保存し、前記コンソールまたは外部システムと無線方式または有線方式で接続された時点で、当該コンソールまたは当該外部システムに前記画像データまたは前記放射線画像のデータを送信することを特徴とする請求項1に記載の放射線画像撮影装置。 - 前記制御手段は、前記撮影モードを、前記放射線画像撮影装置が使用される状況に適した撮影モードに自動的に切り替えることを特徴とする請求項1または請求項2に記載の放射線画像撮影装置。
- 前記制御手段は、前記放射線画像撮影装置が撮影室での撮影に用いられる際には、前記撮影モードを自立モードから被制御モードに切り替えることを特徴とする請求項3に記載の放射線画像撮影装置。
- 前記制御手段は、前記放射線画像撮影装置のコネクターと、前記撮影室内に存在するコネクターとが接続された場合には、前記撮影モードを自立モードから被制御モードに切り替えることを特徴とする請求項4に記載の放射線画像撮影装置。
- 前記制御手段は、前記放射線画像撮影装置のアンテナと、前記撮影室内に存在するアクセスポイントとの無線通信が確立された場合には、前記撮影モードを自立モードから被制御モードに切り替えることを特徴とする請求項4または請求項5に記載の放射線画像撮影装置。
- 前記コンソールと無線方式で通信するためのアンテナを備え、
前記制御手段は、前記アンテナを介して前記コンソールと無線方式で通信する際の電波環境が悪化したと判断した際には、前記撮影モードを被制御モードから自立モードに切り替えることを特徴とする請求項3に記載の放射線画像撮影装置。 - 前記制御手段は、前記撮影モードを自立モードに切り替える前に、前記撮影モードを被制御モードから自立モードに切り替える旨を通知し、切り替えを承認する入力があった場合に、前記撮影モードを被制御モードから自立モードに切り替えることを特徴とする請求項7に記載の放射線画像撮影装置。
- 前記制御手段は、前記電波環境が改善したと判断した際に、前記撮影モードを自立モードから被制御モードに切り替えることを特徴とする請求項7または請求項8に記載の放射線画像撮影装置。
- 前記制御手段は、前記撮影モードを被制御モードに切り替える前に、前記撮影モードを自立モードから被制御モードに切り替える旨を通知し、切り替えを承認する入力があった場合に、前記撮影モードを自立モードから被制御モードに切り替えることを特徴とする請求項9に記載の放射線画像撮影装置。
- 前記放射線画像撮影装置の位置または高さを測定する位置測定手段または高さ測定手段を備え、
前記制御手段は、前記位置測定手段により測定された前記放射線画像撮影装置の位置に基づいて前記放射線画像撮影装置が施設外に存在していると判断した際、または、前記高さ測定手段により測定された前記放射線画像撮影装置の高さに基づいて前記放射線画像撮影装置が病室における回診に使用されていると判断した際には、前記撮影モードを被制御モードから自立モードに切り替えることを特徴とする請求項3に記載の放射線画像撮影装置。 - 二次元状に配列され、照射された放射線の線量に応じた電荷を発生させる複数の放射線検出素子と、
少なくとも前記各放射線検出素子から前記電荷を読み出して画像データを生成するように制御する制御手段と、
を備える放射線画像撮影装置と、
前記放射線画像撮影装置の動作を制御可能なコンソールと、
を備える放射線画像撮影システムにおいて、
前記放射線画像撮影装置は、撮影モードを、前記コンソールによる制御を受ける被制御モードと、前記コンソールによる制御を受けずに自立して撮影を行う自立モードとの間で切り替え可能とされており、
被制御モードと自立モードとの間で撮影モードが切り替わると、前記放射線画像撮影装置の前記制御手段は、自らの処理の仕方を、切り替え後の撮影モードにおける処理の仕方に切り替えることを特徴とする放射線画像撮影システム。
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