JP6146249B2 - Image display device and image display method - Google Patents

Description

  The present invention relates to an image display device and an image display method.

  Conventionally, with the spread of PACS (Picture Archiving and Communication System), images were taken with modalities such as CR (Computed Radiography), CT (Computed Tomography), MR (Magnetic Resonance), and MG (Mammography). The medical image is stored in the image server as a digital image.

  When displaying a medical image, various tone conversion processes are performed on the image data generated by the modality using an LUT such as a modality LUT (Look Up Table) or a VOI LUT (Value Of Interest LUT). And the final image is displayed.

  The modality LUT is used to convert a modality-dependent pixel value into a modality-independent pixel value, and is an LUT that is attached to a medical image and transmitted from the modality. The modality LUT is not allowed to change on the viewer's side.

  On the other hand, the VOI LUT is used for conversion to a meaningful pixel value during display or printing. The conversion using the VOI LUT is applied after the modality LUT. In general, in a mammography apparatus, as an initial value of a VOI LUT, a linear LUT in which a window width (WW: Window Width) and a window center (WC: Window Center) are described is often attached to a medical image. The doctor operates the viewer to change the gradation conversion process (VOI LUT) applied to the medical image according to the lesioned part (lime or the like) to be observed in detail.

  FIG. 8 shows an example of the conversion table of the linear VOI LUT. The horizontal axis represents the pixel value after applying the modality LUT to the image data. The vertical axis represents the display value after conversion for display. Here, the case where the original image is 12 bits and the display image is 8 bits is shown. For example, when the window center (WC) is 1000 and the window width (WW) is 1000, pixel values 0 to 500 are expressed in black, and 500 to 1500 are expressed in gradation by changing the gray density. , 1500 to 4095 are expressed in white (when Photometric interpret action is MONOCHROME2).

  In recent years, there is a strong demand for the appearance of medical images, and there is a movement to differentiate the appearance. For example, a technique for calculating a window width and a window center suitable for an observation object based on image data is disclosed (see Patent Document 1). There is also a method of applying a SIGMOID function after specifying a window width and a window center as a VOI LUT.

  In addition, a method of changing a plurality of VOI LUTs prepared in advance for a medical image generated by a mammography apparatus depending on a lesion (lime or tumor) to be detected from the image is becoming widespread. Specifically, a normal LUT, a lime-specific LUT, a tumor-specific LUT, and the like are stored in the header of an image file of DICOM (Digital Imaging and Communications in Medicine) standard.

JP 2010-227394 A

  However, when a medical image with a plurality of VOI LUTs attached is received on the viewer side in this way, at the time of initial display, it is stored first among the plurality of VOI LUTs stored in the header. Only the existing VOI LUT could be applied.

  For example, a normal LUT and a lime-specific LUT are sequentially stored in the header of one medical image of a set of medical images displayed at the same time, and a lime-specific LUT and a tumor are stored in the other medical image header. When LUTs specialized in the above are stored in order, a normal LUT is applied to the former, and a LUT specialized to lime is applied to the latter. For this reason, there is a problem that proper image interpretation cannot be performed due to different image processing conditions (VOI LUT) applied to images displayed simultaneously.

  This situation may occur if the previous medical image being compared and the current medical image were taken with a different manufacturer's modality, or if it was taken with the same manufacturer's modality. This may occur when the type of the first attached VOI LUT is different.

  The present invention has been made in view of the above-described problems in the prior art, and improves image interpretation efficiency by effectively performing image processing using an interest value lookup table attached to a medical image. This is the issue.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that display means for displaying a plurality of medical images and a plurality of interest value looks attached to at least one of the plurality of medical images. Presenting means for presenting the type of up-table, designation means for designating one of the plurality of presented interest value lookup table types as the interest value lookup table type, and the plurality of medical items For each of the images, the interest value lookup table of the specified type is acquired from the interest value lookup table attached to the medical image, and the interest acquired from the medical image with respect to the medical image Image processing means for performing image processing using a value lookup table and a plurality of medical images subjected to the image processing on the same screen of the display means Display control means for displaying an image display device comprising a.

  According to a second aspect of the present invention, in the image display device according to the first aspect, the image display apparatus further comprises a selection unit, and at least one of the plurality of medical images is selected by the selection unit.

  According to a third aspect of the present invention, in the image display device according to the first or second aspect, the image processing unit is configured to perform, for each of the plurality of medical images, the interest value look of the designated type in the medical image. If no uptable is attached, image processing is performed on the medical image using a predetermined interest value lookup table.

  According to a fourth aspect of the present invention, in the image display device according to any one of the first to third aspects, the plurality of medical images are photographed in a head-to-tail direction with respect to the left and right breasts. Two breast images, or two breast images captured in the imaging direction of the internal and external oblique directions for the left and right breasts.

  According to a fifth aspect of the present invention, in the image display device according to any one of the first to third aspects, the plurality of medical images are in a head-to-tail direction and an inward / outward oblique direction with respect to left and right breasts. It is four breast images image | photographed in the imaging | photography direction.

  According to a sixth aspect of the present invention, in the image display device according to any one of the first to third aspects, the plurality of medical images have a head-to-tail direction and a right-and-left direction for the left and right breasts at different times. It is a set of four breast images photographed in the photographing direction of the inside / outside oblique direction.

  The invention according to claim 7 is a presentation step of presenting types of a plurality of interest value lookup tables attached to at least one of the plurality of medical images displayed on the display unit, and the presented A step of specifying one of the plurality of interest value lookup table types, and an interest value look attached to the medical image for each of the plurality of medical images. An image processing step of acquiring the specified type of interest value lookup table from the up table and performing image processing on the medical image using the interest value lookup table acquired from the medical image; A display control step of displaying a plurality of medical images on which the image processing has been performed on the same screen of the display means. .

  According to the present invention, image interpretation efficiency can be improved by effectively performing image processing using an interest value lookup table attached to a medical image.

1 is a system configuration diagram of a medical image display system. It is a block diagram which shows the functional structure of an image server. It is a block diagram which shows the functional structure of a client terminal. It is a flowchart which shows the medical image display process performed in a client terminal. It is a flowchart which shows the medical image display process performed in a client terminal. It is an example of an interpretation screen. It is an example of the information regarding the nonlinear VOI LUT attached to the medical image. It is a figure for demonstrating the window width and window center in linear VOI LUT.

Hereinafter, an embodiment of the present invention will be described.
FIG. 1 shows a system configuration of the medical image display system 100. As shown in FIG. 1, a medical image display system 100 includes an image server 10, a client terminal 20 as an image display device, and a modality 30 via a communication network N such as a LAN (Local Area Network). It is connected and configured. The DICOM standard is applied to the communication network N.

  The image server 10 is configured by PACS, stores a medical image data file (hereinafter referred to as an image file) generated by various modalities 30, and responds to a request from an external device such as the client terminal 20. Provide image files. The image file is generated in a format conforming to the DICOM standard, and is composed of image data of a medical image and a header. The header stores additional information related to medical images.

  FIG. 2 shows a functional configuration of the image server 10. As shown in FIG. 2, the image server 10 includes a CPU (Central Processing Unit) 11, an operation unit 12, a display unit 13, a communication unit 14, a ROM (Read Only Memory) 15, a RAM (Random Access Memory) 16, and a storage unit. 17, and each part is connected by a bus 18.

  The CPU 11 comprehensively controls the processing operation of each unit of the image server 10. Specifically, the CPU 11 reads out various processing programs stored in the ROM 15 in response to an operation signal input from the operation unit 12 or an instruction signal received by the communication unit 14, and a workpiece formed in the RAM 16. Expand to the area and perform various processes in cooperation with the program.

  The operation unit 12 includes a keyboard having cursor keys, numeric input keys, various function keys, and the like, and a pointing device such as a mouse, and outputs operation signals input by keyboard operation and mouse operation to the CPU 11. To do.

  The display unit 13 is configured by an LCD (Liquid Crystal Display), and displays various screens based on display data input from the CPU 11.

  The communication unit 14 is an interface that transmits and receives data to and from an external device such as the client terminal 20.

  The ROM 15 is configured by a nonvolatile semiconductor memory or the like, and stores a control program, parameters and files necessary for executing the program, and the like.

  The RAM 16 forms a work area for temporarily storing various programs read from the ROM 15, input or output data, parameters, and the like in various processes controlled by the CPU 11.

  The storage unit 17 is composed of a hard disk or the like and stores various data. Specifically, the storage unit 17 stores an image DB (Data Base) 171. The image DB 171 stores image files of a plurality of medical images.

  The image file is transmitted from various modalities 30. Examples of the image file include an image file of a breast image obtained by X-ray imaging of a breast.

  When there is a request for acquisition of a medical image image file from the client terminal 20, the CPU 11 reads out the requested medical image image file from the image DB 171 of the storage unit 17 and transmits it to the client terminal 20.

  The client terminal 20 is a device for displaying a medical image based on the image file acquired from the image server 10 and interpreting the medical image, and is configured by a PC (Personal Computer) or the like.

  FIG. 3 shows a functional configuration of the client terminal 20. As shown in FIG. 3, the client terminal 20 includes a CPU 21, an operation unit 22, a display unit 23, a communication unit 24, a ROM 25, a RAM 26, and a storage unit 27, and each unit is connected by a bus 28.

  The CPU 21 comprehensively controls the processing operation of each unit of the client terminal 20. Specifically, the CPU 21 reads various processing programs stored in the ROM 25 in response to an operation signal input from the operation unit 22 or an instruction signal received by the communication unit 24, and a work piece formed in the RAM 26. Expand to the area and perform various processes in cooperation with the program.

  The operation unit 22 is a functional unit that receives an operation instruction from the user. The operation unit 22 includes a keyboard having cursor keys, numeric input keys, various function keys, and the like, and a pointing device such as a mouse, and outputs operation signals input by keyboard operations and mouse operations to the CPU 21. To do. For example, the operation unit 22 is used when selecting any one of a plurality of medical images displayed on the display unit 23. That is, the operation unit 22 functions as a selection unit. Further, the operation unit 22 is used when designating any one type of VOI LUT among types of a plurality of interest value lookup tables (hereinafter referred to as VOI LUT) presented on the display unit 23. That is, the operation unit 22 functions as a designation unit.

  The display unit 23 is a high-definition monitor device configured by an LCD, and displays various screens based on display data input from the CPU 21. For example, the display unit 23 displays a medical image to be interpreted.

  The communication unit 24 is an interface that transmits / receives data to / from an external device such as the image server 10.

  The ROM 25 is composed of a nonvolatile semiconductor memory or the like, and stores a control program, parameters and files necessary for executing the program, and the like.

  The RAM 26 forms a work area for temporarily storing various programs read from the ROM 25, input or output data, parameters, and the like in various processes controlled by the CPU 21. Specifically, the RAM 26 stores an image file acquired from the image server 10 and the like.

  The storage unit 27 is configured by a hard disk or the like and stores various data.

  The CPU 21 transmits an acquisition request for an image file of a medical image stored in the storage unit 17 to the image server 10 via the communication unit 24, and acquires the image file of the medical image from the image server 10.

  The CPU 21 presents types of a plurality of VOI LUTs attached to at least one medical image among the plurality of medical images displayed on the display unit 23. That is, the CPU 21 functions as a presentation unit. In the present embodiment, the CPU 21 includes a plurality of types of VOI LUTs attached to any one of the medical images displayed by the operation from the operation unit 22 among the plurality of medical images displayed on the display unit 23. Is displayed on the display unit 23.

  For each of the plurality of medical images displayed on the display unit 23, the CPU 21 determines whether or not the specified type of VOI LUT is attached to the medical image. For each of a plurality of medical images, when the specified type of VOI LUT is attached to the medical image, the CPU 21 specifies the type specified from the VOI LUT attached to the medical image. The VOI LUT is acquired, and image processing is performed on the medical image using the VOI LUT acquired from the medical image. On the other hand, for each of a plurality of medical images, the CPU 21 uses the VOI LUT predetermined for the medical image when the specified type of VOI LUT is not attached to the medical image. Process. That is, the CPU 21 functions as an image processing unit.

  The CPU 21 displays a plurality of medical images on which image processing has been performed using the VOI LUT on the same screen of the display unit 23. That is, the CPU 21 functions as a display control unit.

  The modality 30 captures an image of a region to be diagnosed by a patient as a subject, and digitally converts the captured image to generate a medical image. The modality 30 includes, for example, CR (Computed Radiography), FPD (Flat Panel Detector), CT (Computed Tomography), MR (Magnetic Resonance), and the like. Modality 30 is patient information (patient ID, patient name, sex, date of birth, age, etc.), image attribute information (UID, imaging date, examination ID, examination site, modality LUT, VOI LUT, etc.) in accordance with the DICOM standard. ) Etc. are written in the header of the image file of the medical image to attach the additional information to the medical image.

  In the present embodiment, a case where a mammography apparatus is used as the modality 30 and a breast image is taken will be described as an example.

Next, the operation will be described.
4 and 5 are flowcharts illustrating medical image display processing executed in the client terminal 20. This processing is realized by software processing through cooperation between the CPU 21 and the program stored in the ROM 25. The medical image display process is described only for the image process (gradation conversion process) using the VOI LUT, and actually, the image process other than the image process using the VOI LUT is appropriately performed. .

  First, when a patient to be interpreted is designated by an operation from the operation unit 22 by a user (reading doctor), the CPU 21 sends an acquisition request for the designated patient examination list to the image server 10. The examination list transmitted and acquired through 24 is displayed on the display unit 23. Then, when a plurality of medical images to be interpreted are specified from the examination list by an operation from the operation unit 22 by the user (step S1), the specified plurality of medical images are transmitted to the image server 10. An image file acquisition request is transmitted via the communication unit 24.

For example, as a plurality of medical images displayed on the same screen, two breast images (left CC image, right CC) taken in the head-to-tail direction (CC) with respect to the left and right breasts of the target patient. Image) is specified.
Alternatively, as a plurality of medical images displayed on the same screen, two breast images (left MLO image, right image) captured in the imaging direction of the internal and external oblique directions (MLO) for the respective left and right breasts of the target patient MLO image) is designated.

  Alternatively, as a plurality of medical images displayed on the same screen, four breast images (left CC image, left CC image, A right CC image, a left MLO image, and a right MLO image) are designated.

  Alternatively, as a plurality of medical images displayed on the same screen, four breast images taken in the imaging directions of the head-to-tail direction and the inside / outside oblique direction for the left and right breasts of the subject patient at different times Is specified. For example, each of the latest CC image, current CC image, left MLO image, and right MLO image for each of the latest medical image (current image) obtained by imaging the target patient and the medical image (past image) taken in the past. A total of 8 medical images are designated each.

  When a plurality of medical images are designated, the left and right CC images, the left and right MLO images, etc. may be designated in pairs, the left and right CC images, and the left and right MLO images may be designated collectively. You may specify one.

  In the image server 10, when an acquisition request for a medical image image file is received by the communication unit 14, the medical image image file corresponding to the acquisition request is read from the image DB 171 by the CPU 11, and the read medical image is read out. An image file of an image is transmitted to the client terminal 20 via the communication unit 14.

  In the client terminal 20, the CPU 21 acquires a plurality of medical image image files from the image server 10 via the communication unit 24, and stores the acquired plurality of medical image image files in the RAM 26. Next, the CPU 21 displays a plurality of medical images on the display unit 23 based on the acquired image files of the plurality of medical images (step S2).

  Here, image processing using a predetermined VOI LUT is performed on each medical image. As a predetermined VOI LUT, a VOI LUT set as a default in the client terminal 20 may be used, or a VOI LUT designated by the user may be used, and is attached to each medical image. The VOI LUT stored first among the VOI LUTs may be used.

  FIG. 6 shows an example of an image interpretation screen 231 displayed on the display unit 23. The interpretation screen 231 includes a right CC image 41, a left CC image 42, a right MLO image 43, and a left MLO image 44 that are the current image 40, a right CC image 51, a left CC image 52, and a right MLO image that are past images 50. 53 and the left MLO image 54 are displayed.

  The current image 40 is taken by the modality 30 of manufacturer A. The right CC image 41, the left CC image 42, the right MLO image 43, and the left MLO image 44 each include four non-linear VOI LUTs, a normal LUT (hereinafter referred to as a normal LUT), and a LUT specialized for a tumor. (Hereinafter referred to as “mass LUT”), a lime-specific LUT (hereinafter referred to as “lime LUT”), a fat-specific LUT (hereinafter referred to as “fat LUT”), and a linear VOI LUT. Not. The normal LUT is a general-purpose nonlinear VOI LUT. The tumor LUT is a non-linear VOI LUT suitable for detecting a tumor. The lime LUT is a non-linear VOI LUT suitable for lime detection. The fat LUT is a non-linear VOI LUT suitable for fat detection.

  The past image 50 is taken by the modality 30 of manufacturer B. Each of the right CC image 51, the left CC image 52, the right MLO image 53, and the left MLO image 54 is accompanied by one linear VOI LUT and two nonlinear VOI LUTs (lime LUT, tumor LUT). ing.

  Next, any one medical image is selected from a plurality of medical images displayed on the display unit 23 by an operation from the operation unit 22 by the user (step S3). The medical image selected in step S3 is hereinafter referred to as a selected image. Here, for example, as shown in FIG. 6, the CPU 21 displays a frame 231 a indicating that the selection has been made around the selected image (the right CC image 41).

  Next, in a state where any one of the medical images is selected, the CPU 21 determines whether or not there is an event for displaying the non-linear VOI LUT application menu in the operation unit 22 (step S4). For example, right-clicking with the mouse pointer MP on the selected image (right CC image 41) shown in FIG. 6 corresponds to an event for displaying the nonlinear VOI LUT application menu. If there is no event for displaying the nonlinear VOI LUT application menu (step S4; NO), the process returns to step S4.

  If there is an event for displaying the non-linear VOI LUT application menu (step S4; YES), the CPU 21 adds auxiliary information (header) of the image file of the selected image among the plurality of image files stored in the RAM 26. ) To obtain the type of nonlinear VOI LUT (step S5).

FIG. 7 shows an example of information (VOI LUT Sequence) 60 related to the non-linear VOI LUT among the incidental information attached to the medical image (the header portion of the DICOM image file conforming to the DICOM standard).
In the tags 61a, 61b, 61c, and 61d indicating the LUT descriptor, the number of data (bit information) stored in the tags 63a, 63b, 63c, and 63d indicating the LUT data is described.
In the tags 62a, 62b, 62c, and 62d indicating the description of the LUT data, the type of the nonlinear VOI LUT is described. In the example of FIG. 7, a tumor, lime, and fat are normally stored as the types of nonlinear VOI LUT.
In the tags 63a, 63b, 63c, and 63d indicating the LUT data, actual LUT data constituting the nonlinear VOI LUT is described.

  Next, the CPU 21 presents the type of the nonlinear VOI LUT acquired from the selected image on the display unit 23 (step S6). Specifically, the types of a plurality of nonlinear VOI LUTs attached to the selected image are displayed so as to be selectable at the position where the display unit 23 is right-clicked. For example, in the image interpretation screen 231 shown in FIG. 6, when the right CC image 41 is selected and there is an event for displaying the nonlinear VOI LUT application menu, the type of nonlinear VOI LUT is the normal LUT, A mass LUT, a lime LUT, and a fat LUT are presented.

  Next, one of the types of the nonlinear VOI LUT displayed on the display unit 23 is designated by the user's operation from the operation unit 22 (step S7).

  Next, moving to FIG. 5, the CPU 21 sets a medical image to be processed (hereinafter referred to as a target image) from a plurality of medical images displayed on the display unit 23, and stores a plurality of medical images stored in the RAM 26. Of the medical image file, the type of the non-linear VOI LUT is acquired from the incidental information (header) of the image file of the target image (step S8). Then, based on the type of the non-linear VOI LUT acquired from the target image, the CPU 21 determines whether or not the type of non-linear VOI LUT specified in step S7 is attached to the target image (step S9). Specifically, if the type of the specified nonlinear VOI LUT is included in the type of the nonlinear VOI LUT acquired from the target image, the specified type of nonlinear VOI LUT is attached to the target image. It is judged that

  When the specified type of nonlinear VOI LUT is attached to the target image (step S9; YES), the CPU 21 determines the specified type from the additional information of the image file of the target image stored in the RAM 26. The non-linear VOI LUT (LUT data) is acquired (step S10). Then, the CPU 21 performs image processing on the target image using the non-linear VOI LUT acquired from the target image (the specified type of non-linear VOI LUT among the non-linear VOI LUT attached to the target image). (Step S11), the medical image after the image processing is displayed on the display unit 23 (Step S12).

  Note that since the selected image is known to be accompanied by the type of nonlinear VOI LUT specified in step S7, the processing in steps S8 and S9 is not necessary.

  In step S9, when the specified type of non-linear VOI LUT is not attached to the target image (step S9; NO), the CPU 21 maintains the current display state of the target image (step S9). S13). That is, for the target image, image processing is performed using a predetermined VOI LUT in step S2, and the displayed state is continued. Note that the target image may be subjected to image processing again using a predetermined VOI LUT similar to step S2.

  After step S12 or step S13, the CPU 21 determines whether there is another unprocessed medical image among the plurality of medical images (step S14). If there is another medical image (step S14; YES), the process returns to step S8, and the process is repeated for the other medical image. The medical image displayed in step S12 or the medical image whose display state is maintained in step S13 is displayed on the same screen of the display unit 23.

  In step S14, when there is no other medical image (step S14; NO), that is, when the processing is completed for all of the plurality of medical images, the medical image display processing is terminated.

  As described above, according to the present embodiment, when the type of the VOI LUT to be applied is specified for any one of the plurality of medical images displayed on the display unit 23. The specified type of VOI LUT is applied to all of the plurality of medical images. Therefore, the image interpretation efficiency can be improved by effectively performing the image processing using the VOI LUT attached to the medical image. The user does not need to individually give an operation instruction for changing the type of the VOI LUT to each of the plurality of medical images, so that the operability is improved.

For example, in the image interpretation screen 231 shown in FIG. 6, if a tumor LUT or lime LUT is specified in a state where the right CC image 41 is selected, the current image 40 (the right CC image 41, the left CC image 42, the right MLO image 43, left MLO image 44) and past image 50 (right CC image 51, left CC image 52, right MLO image 53, left MLO image 54), a tumor LUT attached to each medical image Alternatively, image processing is performed using the lime LUT, and the display is updated.
In addition, when a normal LUT or a fat LUT is specified in a state where the right CC image 41 is selected on the interpretation screen 231, a current image 40 (right CC image 41, left CC image 42, right MLO image 43, For the left MLO image 44), image processing is performed using the normal LUT or fat LUT attached to each medical image, and the display is updated, but the past image 50 (right CC image 51, left CC) Regarding the image 52, the right MLO image 53, and the left MLO image 54), since the corresponding VOI LUT does not exist, the display of the past image 50 is not updated.

  In addition, it is possible to present a plurality of types of VOI LUTs attached to the medical image selected by the user among the plurality of medical images.

  The description in the above embodiment is an example of the image display device according to the present invention, and the present invention is not limited to this. The detailed configuration and detailed operation of each part constituting the apparatus can be changed as appropriate without departing from the spirit of the present invention.

For example, in the above embodiment, when the specified kind of non-linear VOI LUT is not attached to the medical image, the VOI LUT applied to the medical image is not changed, but a warning message is displayed. It is good to do.
In addition, when the specified type of non-linear VOI LUT is not attached to the medical image, image processing may be performed using a predetermined VOI LUT different from the VOI LUT used in step S2. Good.
In addition, when there are medical images that are not accompanied by the specified type of non-linear VOI LUT among the plurality of medical images, the VOI LUT to be applied to all of the plurality of medical images may not be changed. Good.

  In the above embodiment, a case has been described in which a VOI LUT to be applied is designated from among nonlinear VOI LUTs attached to a medical image. However, a linear VOI LUT attached to a medical image can be designated. Also good.

  In the above embodiment, a case has been described in which a plurality of types of nonlinear VOI LUTs attached to one medical image selected by the user among a plurality of medical images are presented as designation candidates. The types of the non-linear VOI LUT attached to the medical image may be acquired, and only the types of the non-linear VOI LUT attached to all the medical images may be presented as designation candidates.

  Moreover, although the case where the breast image was used as a medical image was demonstrated in the said embodiment, the imaging | photography part is not limited to a breast, Other parts may be sufficient.

  In the above description, an example in which a ROM is used as a computer-readable medium storing a program for executing each process is disclosed, but the present invention is not limited to this example. As other computer-readable media, a non-volatile memory such as a flash memory and a portable recording medium such as a CD-ROM can be applied. A carrier wave may be applied as a medium for providing program data via a communication line.

10 Image server 11 CPU
14 Communication unit 15 ROM
17 Storage Unit 20 Client Terminal 21 CPU
22 Operation unit 23 Display unit 24 Communication unit 25 ROM
27 Storage Unit 30 Modality 100 Medical Image Display System N Communication Network

Claims (7)

Display means for displaying a plurality of medical images;
Presenting means for presenting types of a plurality of interest value lookup tables attached to at least one medical image of the plurality of medical images;
Designating means for designating one kind of interest value lookup table type among the plurality of presented interest value lookup table types;
For each of the plurality of medical images, the specified type of interest value lookup table is acquired from the interest value lookup table attached to the medical image, and the medical image is obtained from the medical image. Image processing means for performing image processing using the acquired interest value lookup table;
Display control means for displaying a plurality of medical images subjected to the image processing on the same screen of the display means;
An image display device comprising: A selection means,
The image display apparatus according to claim 1, wherein at least one medical image among the plurality of medical images is selected by the selection unit.   The image processing means, for each of the plurality of medical images, if the specified kind of interest value lookup table is not attached to the medical image, a predetermined interest for the medical image. The image display device according to claim 1, wherein image processing is performed using a value lookup table.   The plurality of medical images were photographed in two breast images taken in the head-to-tail direction for the left and right breasts, or in the inner and outer oblique directions for the left and right breasts. The image display apparatus according to claim 1, wherein the image display apparatus is two breast images.   The image according to any one of claims 1 to 3, wherein the plurality of medical images are four breast images captured in the imaging directions of the head-to-tail direction and the inner / outer oblique direction with respect to the left and right breasts. Display device.   The plurality of medical images is a set of four breast images captured in the head-to-tail direction and the inner / outer oblique direction with respect to the left and right breasts at different times. The image display device according to claim 1. A presenting step of presenting types of a plurality of interest value lookup tables attached to at least one of the plurality of medical images displayed on the display means;
A designating step of designating one of the plurality of presented interest value lookup table types as one of the interest value lookup table types;
For each of the plurality of medical images, the specified type of interest value lookup table is acquired from the interest value lookup table attached to the medical image, and the medical image is obtained from the medical image. An image processing step of performing image processing using the acquired interest value lookup table;
A display control step of displaying a plurality of medical images subjected to the image processing on the same screen of the display means;
An image display method including:

Images