JP2005046271A - Medical image indicating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to easily observe and display a plurality of medical images so as to compare the same. <P>SOLUTION: An image photographed a TV camera 13 to which an endoscope 4 is connected is displayed on a first LCD 30 with a liquid crystal driver 34. Here, if needed, a surgeon can display an endoscope image displayed on the first LCD 30 and a CT image of the same site on a second LCD 31 from a CT image server 33 using an liquid crystal driver 39 by operating a setting I/F40. The brightness of the first LCD 30 and the second LCD 31 can be respectively adjusted using a brightness display position adjusting circuit 42 by operating the setting I/F40. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a medical image display apparatus that controls display of a plurality of medical images for use in diagnosis.
[0002]
[Prior art]
2. Description of the Related Art In recent years, endoscopic surgery that performs a therapeutic procedure without performing laparotomy has been performed in order to reduce the invasion to a patient and reduce the burden on the body. For example, in laparoscopic surgery, a trocar that guides an endoscope for observation into a body cavity and a trocar that guides a treatment tool to a treatment site in the body cavity are punctured in the abdomen from the patient's body surface, and the endoscope is inserted through the endoscope. The photographed image is displayed on a display such as a CRT, and the surgeon proceeds with the operation while viewing the image. At this time, when confirming the X-ray image taken before or during the operation, the operator needs to move to the Shakasten provided near the wall of the operating room, and thus the operation is interrupted.
[0003]
Japanese Patent Laid-Open No. 5-285102 proposes a system for displaying an endoscopic image and an X-ray image on one display in order to solve such a problem.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 5-285102
[Problems to be solved by the invention]
However, the above-mentioned Japanese Patent Application Laid-Open No. 5-285102 has a problem that the images are difficult to see because they are superimposed on one display.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a medical image display device that can easily observe and display a plurality of medical images in a comparable manner.
[0007]
[Means for Solving the Problems]
The medical image display device of the present invention includes a medical image generation unit that generates a first medical image related to an observation site of a subject, a medical image storage unit that stores a second medical image related to the observation site of the subject, A first display means for displaying the first medical image; and a second display unit for displaying the second medical image on the display unit and a display unit made of a material that can be seen through from the display surface to the back surface of the image. And display means.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0009]
First embodiment:
1 to 3 relate to a first embodiment of the present invention, FIG. 1 is a block diagram showing the configuration of an endoscopic surgical system, FIG. 2 is an external view showing the configuration of the monitor of FIG. FIG. 2 is a block diagram showing a drive circuit built in the system controller of FIG. 1.
[0010]
(Constitution)
As shown in FIG. 1, in an endoscopic surgery system 1 formed in an operating room, a TV camera head 4 with a built-in imaging device is attached to a patient 3 lying on an operating table 2 to perform endoscopy. An endoscope 5, an insufflation guide tube 6 for performing insufflation, and an electric scalpel probe 7 for performing an ablation procedure electrically, and a signal cable 8 connected to the TV camera head 4, A light guide cable 9 connected to the endoscope 5, an insufflation tube 10 connected to the insufflation guide tube 6, and a signal cable 11 connected to the electric scalpel probe 7 are a TV camera mounted on the trolley 12. A device (hereinafter abbreviated as a TV camera) 13, a light source device (hereinafter abbreviated as a light source) 14, an insufflator 15, and an electric knife 16 are respectively connected.
[0011]
The trolley 12 includes the TV camera 13 that performs signal processing on the image sensor, a light source 14 that supplies illumination light, an insufflator 15 that supplies insufflation gas, and an electric knife 16 that supplies high-frequency power for cauterization. In addition, a system controller 17 that performs overall control, a VTR 18 that records a video signal from the TV camera 13, and a monitor 19 that displays the video signal from the TV camera 13 as a video are mounted.
[0012]
An operation panel 21 for performing operations and a display panel 22 for performing displays are attached to the trolley 12, and a remote controller 23 for performing remote control operations is detachably provided on the operating table 2 or the like.
[0013]
Each medical device such as the TV camera 13 is connected to the system controller 17 by a communication cable (not shown).
[0014]
As shown in FIG. 2, the monitor 19 includes a first LCD 30 serving as a first display unit that displays an endoscopic image, and a second LCD 31 serving as a second display unit that displays an X-ray image (hereinafter referred to as a CT image). The second LCD 31 is arranged on the front surface of the first LCD 30 with an interval of 5 mm, for example. The second LCD 31 is transparent except for the portion displaying the organ, so that the operator can view the endoscopic image displayed on the first LCD 30 disposed on the back through the second LCD 31.
[0015]
As shown in FIG. 3, the drive circuit 32 for driving the first LCD 30 and the second LCD 31 provided in the system controller 17 includes a first LCD 30, a second LCD 31, and a CT as medical image storage means for storing CT images. The TV camera 13 as a medical image generation unit to which the image server 33 and the endoscope 4 are connected is connected.
[0016]
The video output signal line of the TV camera 13 is connected to a first liquid crystal driver 34 for driving the first LCD 30 in the drive circuit 32.
[0017]
The CT image server 33 is connected to an image readout circuit 35 in the drive circuit 32 through at least two signal lines. One system is a video signal output line 36 of the CT image server 33, and the other system is a readout image control line 37 of the image readout circuit 35.
[0018]
The image readout circuit 35 is connected to a second liquid crystal driver 39 for driving the second LCD 31 via a video signal line 38. Reference numeral 40 is a setting I / F for setting an image to be read from the CT image server 33, setting the brightness of the liquid crystal. The display position of the image can be set. The setting I / F 40 is connected to the image reading circuit 35 through a signal line 41. In addition, the setting of the image connected to the liquid crystal drivers 34 and 39, the luminance setting of the liquid crystal. It is connected via a signal line 43 to a luminance display position adjustment circuit 42 as display characteristic adjustment means for setting the image display position and the like.
[0019]
(Function)
An image photographed by the TV camera 13 to which the endoscope 4 is connected is displayed on the first LCD 30 by the first liquid crystal driver 34. Here, the surgeon operates the setting I / F 40 on the CT image of the same part as the endoscopic image displayed on the first LCD 30 from the CT image server 33 as necessary, and the second liquid crystal driver 39 applies the CT image to the second LCD 31. Can be displayed.
[0020]
Further, the brightness of the first LCD 30 and the second LCD 31 can be adjusted by the brightness display position adjustment circuit 42 by operating the setting I / F 40. This adjustment range is from 0 to the maximum. When 0 is set, no image is displayed, and the first LCD 30 or the second LCD 31 becomes transparent. Further, it is possible to adjust the display position of the endoscopic image or CT image to coincide with each other by operating the setting I / F 40.
[0021]
(effect)
Since the surgeon can superimpose the endoscopic image and the CT image at the same time and can observe the lesion part easily and reliably, the operation can be performed more efficiently and safely.
[0022]
Further, since there is a gap between the first LCD 30 and the second LCD 31, both images can be easily identified.
[0023]
It should be noted that the operability is further improved by associating the brightness adjustments of the first LCD 30 and the second LCD 31 so as to be interlocked. For example, the brightness of the second LCD 31 may be 0 when the brightness of the first LCD 30 is maximized, and the brightness of the first LCD 30 may be 0 when the brightness of the second LCD 31 is maximized.
[0024]
Although not shown, the endoscope 4 is provided with a position sensor and a direction sensor to associate the position information of the endoscope image with the image data in the CT image server 33, thereby displaying the endoscope displayed on the first LCD 30. A CT image corresponding to the mirror image can be automatically displayed, and a more user-friendly system can be realized.
[0025]
Second embodiment:
FIGS. 4 to 6 relate to the second embodiment of the present invention, FIG. 4 is a block diagram showing a drive circuit built in the system controller, and FIG. 5 is a CT image stored in the CT image server of FIG. FIG. 6 is a diagram for explaining the operation of the drive circuit of FIG.
[0026]
Since the second embodiment is almost the same as the first embodiment, only different points will be described, and the same components are denoted by the same reference numerals and description thereof will be omitted.
[0027]
(Constitution)
The second embodiment is characterized in that more LCDs are overlapped as compared with the first embodiment.
[0028]
FIG. 4 shows a circuit configuration of the drive circuit 32 according to the second embodiment. The driving circuit 32 is connected to n (n = positive integer) first LCD 30 and second LCD 31 (2) to nth LCD 31 (n).
[0029]
The first LCD 30 and the i-th LCD 31 (i) (i = 2 to n) correspond to each other in a one-to-one correspondence, and the liquid crystal is composed of the first liquid crystal driver 34 and the i-th liquid crystal driver 39 (i) (i = 2 to n). N drivers are provided. A controller 44 connected to the setting I / F 40 is connected to the n first liquid crystal drivers 34 and the i-th liquid crystal driver 39 (i) (i = 2 to n). The controller 44 is connected to the image reading circuit 35.
[0030]
The controller 44 incorporates the function of the luminance display position adjustment circuit 42 described in the first embodiment. Further, as shown in FIG. 5, the CT image server 33 stores m (m>n; m = positive integer) cross-sectional CT images having different depth directions.
[0031]
(Function)
By the i-th LCD 31 (i) (i = 2 to n), CT images corresponding to the endoscopic images displayed on the first LCD 30 are displayed. The controller 44 extracts cross-sectional images having different depth directions from the CT image server 33 and displays them on the i-th LCD 31 (i) (i = 2 to n). Specifically, the second LCD 31 (2) displays a cross section of a deep portion, and a cross section of a shallow portion as it approaches the nth LCD 31 (n).
[0032]
(effect)
Since cross-sectional images shifted in the depth direction can be confirmed at the same time, the organ can be viewed three-dimensionally and more accurate determination can be made.
[0033]
When a cursor is displayed on the first LCD 30 and the i-th LCD 31 (i) (i = 2 to n) and a portion indicated by the cursor is selected, the LCD is transparent if it is transparent within a certain range. Images can be confirmed, making it easier to grasp the structure of the organ (see FIG. 6). In FIG. 6, for example, the selection range 50 indicated by a pointing device or the like is transmitted (white is masked in software so that the back surface can be seen), and the spread of the lesion can be confirmed on the back surface Layer B through Layer A. .
[0034]
Further, if the display timings of the second LCD 31 (2) to the nth LCD 31 (n) are sequentially displayed with a time difference, it is possible to make the endoscopic image of the first LCD 30 easier to see while capturing the organ in three dimensions. .
[0035]
Third embodiment:
FIGS. 7 to 9 relate to the third embodiment of the present invention, FIG. 7 is a diagram for explaining the selection of a CT image from the CT image server, and FIG. 8 is a modification of the selection of the CT image of FIG. FIG. 9 is a diagram for explaining the display of the CT image selected in FIG.
[0036]
Since the third embodiment is almost the same as the second embodiment, only different points will be described, and the same components are denoted by the same reference numerals and description thereof will be omitted.
[0037]
(Constitution)
The third embodiment is different from the second embodiment in that the depth direction of the cross section displayed on the LCD can be selected.
[0038]
In the present embodiment, the monitor 19 includes an LCD 1 for endoscopic images and three i-th LCDs 31 (i) (i = 2 to 4) for CT images.
[0039]
(Function)
The operator selects a desired cross-section in the depth direction with the setting I / F 40. For example, by operating the setting I / F 40, m (m>n; m = positive integer) depth directions stored in the CT image server 33 are different as described in the second embodiment. By addressing the CT image server 33 from the cross-sectional CT images, as shown in FIG. 7, three consecutive cross-sectional images from the second cross-sectional image to the fourth cross-sectional image of the cross-sectional image are shown. Is selected and stored in the image readout circuit 35, or, as shown in FIG. 8, three consecutive cross-sectional images from the (m-4) th cross-sectional image to the (m-12) -th cross-sectional image are selected. It can be stored in the image readout circuit 35. Then, as shown in FIG. 9, the selected image is displayed on the i-th LCD 31 (i) (i = 2 to 4).
[0040]
(effect)
As described above, since a desired cross section can be selected, the efficiency of surgery can be improved, and the number of CT image LCDs constituting the monitor 19 can be reduced, thereby realizing an inexpensive system.
[0041]
In addition, if the mouse wheel function is used as the cross-sectional image selection means and the image on the display start surface is changed or the subsequent image is changed, the selection operation can be executed more quickly.
[0042]
Fourth embodiment:
FIGS. 10 to 13 relate to a fourth embodiment of the present invention, FIG. 10 is a block diagram showing a drive circuit built in the system controller, and FIG. 11 is a first diagram for explaining the operation of the drive circuit of FIG. FIG. 12 is a second diagram for explaining the operation of the drive circuit of FIG. 10, and FIG. 13 is a third diagram for explaining the operation of the drive circuit of FIG.
[0043]
Since the fourth embodiment is almost the same as the second embodiment, only different points will be described, and the same components are denoted by the same reference numerals and description thereof will be omitted.
[0044]
(Constitution)
The fourth embodiment is characterized in that an endoscopic image and a CT image are displayed on one LCD.
[0045]
In the present embodiment, as shown in FIG. 10, the drive circuit 32 includes a superimposing circuit 45, and the controller 44 and the superimposing circuit 45 are connected to each other. The video signal output line of the TV camera 13 and the video signal output line of the image readout circuit 35 are connected to the input terminal of the superimposing circuit 45. On the other hand, the output terminal of the superimposing circuit 45 is connected to the first liquid crystal driver 34.
[0046]
(Function)
The operation of the present embodiment will be described with reference to FIGS. As shown in FIG. 11, the first LCD 30 displays the CT image superimposed on the endoscopic image by the superimposing circuit 45. At this time, the cross section 1 to the cross section m stored in the CT image server 33 are sequentially displayed with a time difference Δt. At this time, the cross section with the depth is displayed smaller.
[0047]
Specifically, as shown in FIG. 12, the images A, B, and C are sequentially displayed on the first LCD 30 that is a two-dimensional display device at a time interval of Δt, and the shape of the lesion in the depth direction of the image using the afterimages. To figure out. Further, as shown in FIG. 13, the size is changed to a size corresponding to the depth interval so that a sense of depth is generated (the size of the image B is reduced with respect to the image A).
[0048]
(effect)
Since a cross-sectional image can be displayed in a pseudo-stereoscopic manner with a single LCD, a compact system that does not take up space can be realized.
[0049]
Fifth embodiment:
14 to 17 relate to a fifth embodiment of the present invention, FIG. 14 is a diagram showing a configuration of the monitor, FIG. 15 is a diagram showing a configuration of a first modification of the monitor of FIG. 14, and FIG. FIG. 17 is a diagram illustrating a configuration of a second modification of the monitor of FIG. 14, and FIG. 17 is a diagram for explaining the operation of the monitor of FIG.
[0050]
Since the fifth embodiment is almost the same as the first embodiment, only different points will be described, and the same components are denoted by the same reference numerals and description thereof will be omitted.
[0051]
(Constitution)
As shown in FIG. 12, the fifth embodiment is characterized in that the monitor 19 is configured by detachably attaching the first LCD 30 and the second LCD 31. The first LCD 30 is provided with a holding slide rail 46 for the second LCD 31. The second LCD 31 is slidably attached to the first LCD 30 along the slide rail 46. A stopper 47 is provided at one end of the slide rail 46, and the second LCD 31 is fixed at the position of the stopper 47.
[0052]
(Function)
When the operator wants to superimpose an endoscopic image and a CT image as necessary, the second LCD 31 is superimposed on the first LCD 30. When superimposing and observing, the second LCD 31 displays a transparent display except for the lesioned part.
[0053]
Further, when it is desired to observe the endoscopic image and the CT image separately, the first LCD 30 and the second LCD 31 are shifted and fixed. Note that a backlight may be provided on the second LCD 31 for separate observation.
[0054]
(effect)
As described above, in the present embodiment, a monitor device that is easier to observe can be realized.
[0055]
As shown in FIG. 13, instead of the slide rail 46, the first LCD 30 and the second LCD 31 are arranged using the hinge 51 (the second LCD 31 with respect to the first LCD 30 from the arrangement in which the second LCD 31 is superimposed on the first LCD 30 with the hinge 51 as the rotation axis). If it is fixed 180 degrees open (within the rotation range 52 indicated by the arrow in FIG. 13), the operability is further improved. In this case, the CT image displayed on the second LCD 31 is an arrangement in which the first LCD 30 and the second LCD 31 are opened 180 degrees through the hinge 51 with respect to the CT image when the first LCD 30 and the second LCD 31 overlap. The CT image is reversed and the image is reversed on the second LCD 31 at the midpoint of the rotation range 52, that is, 90 °. Further, the rotation of the first LCD 30 and the second LCD 31 around the hinge 51 may be performed by operating the remote controller 23, and the second LCD 31 may be remotely opened and closed.
[0056]
Further, as shown in FIG. 14, an angle sensor 53 such as a potentiometer is provided on the rotation axis of the hinge 51 so that the cross section of the organ corresponding to the open / close angle (the open / close angle α of the second LCD 31 matches the angle α of the cut surface of the organ). If the cross section (see FIG. 15) is displayed, the usability is improved. Furthermore, in this case, the cross-sectional images can be viewed from both sides of the second LCD 31.
[0057]
In the first to fifth embodiments, specific examples of displaying a CT image together with an endoscopic image have been described. However, vital signs, surgical instrument setting / measurement values, and maintenance information are displayed in accordance with the endoscopic image. It may be displayed.
[0058]
The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.
[0059]
【The invention's effect】
As described above, according to the present invention, there is an effect that a plurality of medical images can be easily observed and displayed in a comparable manner.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a configuration of an endoscopic surgical system according to a first embodiment of the present invention. FIG. 2 is an external view showing a configuration of a monitor in FIG. 1. FIG. FIG. 4 is a block diagram showing a drive circuit built in a system controller according to a second embodiment of the present invention. FIG. 5 is stored in the CT image server of FIG. FIG. 6 is a diagram for explaining the operation of the drive circuit of FIG. 4. FIG. 7 is a diagram for explaining selection of a CT image from a CT image server according to the third embodiment of the present invention. FIG. 8 is a diagram for explaining a modification example of the CT image selection of FIG. 7. FIG. 9 is a diagram for explaining the display of the CT image selected in FIG. 7. FIG. 10 is the fourth embodiment of the present invention. Showing a drive circuit built in the system controller according to the invention 11 is a first diagram for explaining the operation of the drive circuit of FIG. 10. FIG. 12 is a second diagram for explaining the operation of the drive circuit of FIG. 10. FIG. 13 is for explaining the operation of the drive circuit of FIG. Fig. 14 is a diagram showing a configuration of a monitor according to a fifth embodiment of the present invention. Fig. 15 is a diagram showing a configuration of a first modification of the monitor shown in Fig. 14. The figure which shows the structure of the 2nd modification of the monitor of FIG. 17 is a figure explaining the effect | action of the monitor of FIG.
DESCRIPTION OF SYMBOLS 1 ... Endoscopic surgery system 2 ... Operating table 3 ... Patient 5 ... Endoscope 12 ... Trolley 13 ... TV camera 14 ... Light source (device)
15 ... pneumo-abdominal device 16 ... electric knife 17 ... system controller 18 ... VTR
19 ... Monitor 30 ... 1st LCD
31 ... Second LCD
32 ... Drive circuit 33 ... CT image server 34, 39 ... Liquid crystal driver 35 ... Image readout circuit 40 ... Setting I / F
42. Luminance display position adjustment circuit

Claims (7)

Medical image generation means for generating a first medical image relating to the observation site of the subject;
Medical image storage means for storing a second medical image relating to the observation site of the subject;
First display means for displaying the first medical image;
A medical image display device comprising: a display unit made of a material that can be seen through from the display surface to the back surface of the image; and a second display unit that displays the second medical image on the display unit. . The medical image display apparatus according to claim 1, wherein the medical image generation unit is an endoscope apparatus that images an observation site of the subject. The medical image display apparatus according to claim 2, wherein the medical image storage unit stores a tomographic image of an observation site of the subject. The medical image display apparatus according to claim 2, wherein the medical image storage unit stores a plurality of tomographic images of an arbitrary cross section of the observation site of the subject. The medical image display apparatus according to claim 1, further comprising display characteristic adjusting means for adjusting display characteristics of the first display means and the second display means. The medical image display apparatus according to claim 5, wherein the display characteristic is brightness. The medical image display apparatus according to claim 5, wherein the display characteristic is a display size of an image.

Images