JP5573106B2 - Medical image display system and program - Google Patents

Description

  The present invention relates to a medical image display system and program.

  In recent years, with an increase in the incidence of breast cancer in women, interest in breast cancer screening has increased. In breast cancer screening, a doctor interprets a medical image obtained by photographing a breast to diagnose the presence or absence of an abnormality. However, the number of interpretation doctors who perform diagnosis is insufficient, and there is a problem that diagnosis is delayed.

  In order to improve such a problem, an abnormal shadow candidate detection apparatus (automatic shadow candidate detection device) that automatically detects abnormal shadow candidates indicating the characteristics of a lesion such as breast cancer from a medical image for the purpose of improving diagnostic accuracy or improving the efficiency of diagnostic work ( A CAD device (Computer-Aided Detection) has been developed. A medical image that has been subjected to detection processing of an abnormal shadow candidate by the CAD device is displayed together with detection result information of the abnormal shadow candidate when the medical image is displayed. The detection result information includes detection results of various items such as character information indicating the presence / absence of abnormal shadow candidates and the number of detected abnormal shadow candidates, and markers indicating points and areas corresponding to abnormal shadow candidates on medical images. Contains information.

  For example, Patent Document 1 describes a medical image processing system that detects abnormal shadow candidates from a medical image and displays detection result information. This patent document 1 describes a technique for narrowing and displaying only candidates that are difficult to determine whether they are true positives or false positives and that should be left to the doctor's final determination, or candidates that are low in visibility and are easily overlooked by the doctor.

JP 2006-340835 A

Conventionally, when displaying the detection result information, the detection result information of all items is automatically displayed, or the detection result information of the item instructed by the operation of the interpretation doctor is displayed.
However, the detection result information is auxiliary information for supporting diagnosis only, and is not absolute accuracy. Therefore, by displaying detection result information at the initial stage of diagnosis, avoid prejudice to the doctor and overlook the lesion that should be discovered, or misdiagnose the non-lesion as a lesion. There must be. Conversely, it is also necessary to avoid a situation in which the interpretation doctor overlooks a lesion that can be found by confirming the detection result information without confirming it.

  An object of the present invention is to display a detection result information of abnormal shadow candidates detected from a medical image in a stepwise manner so that a doctor can perform interpretation without prejudice and without oversight.

To solve the above problems, the inventions of claim 1,
Storage means for storing the medical image in association with the detection result information of the abnormal shadow candidate detected from the medical image;
Display means;
When displaying the medical image on the display means, the detection result information stored in the storage means in association with the medical image is acquired, and the acquired detection result information is stepwise on the medical image. Control means to display;
A medical image display system comprising:
An operation means for inputting an instruction to end display of the medical image;
The control means displays a warning on the display means when a display end instruction is input by the operation means before all the detection result information is displayed .

The invention according to claim 2 is the invention according to claim 1,
The operation means is configured to be able to set, for each user, items of detection result information to be displayed at each stage when displaying the detection result information in stages .
The control means displays detection result information stored in association with the medical image on the medical image based on an item of detection result information to be additionally displayed at each stage set for the logged-in user. Display in stages.

The invention according to claim 3 is the invention according to claim 2,
The operation means is further configured to be able to set a display time for each stage when displaying the detection result information in stages, for each user,
The control means switches items of detection result information to be displayed on the medical image based on the display time of each stage set for the logged-in user.

The invention according to claim 4 is the invention according to claim 2,
The operation means is configured to be able to input an instruction to switch items of the detection result information displayed on the medical image,
The control means switches items of the detection result information displayed on the medical image in response to a switching instruction from the operation means.

The program of the invention described in claim 5 is:
Computer
When displaying the medical image on the display means, the medical image and the detection result information of the abnormal shadow candidate detected from the medical image are associated with each other and stored in association with the medical image to be displayed. Means for acquiring stored detection result information and displaying the acquired detection result information on the medical image stepwise ;
Means for displaying a warning on the display means when a display end instruction is input by an operation means for inputting a display end instruction for the medical image before all the detection result information is displayed;
To function as.

  According to the present invention, by displaying the detection result information of abnormal shadow candidates detected from medical images in stages, it is possible for a doctor to perform interpretation without prejudice and without oversight.

It is a figure which shows the example of whole structure of the medical image display system in this Embodiment. It is a block diagram which shows the functional structure of the image server of FIG. It is a figure which shows the example of data storage of the step display setting table memorize | stored in the memory | storage part of FIG. It is a figure which shows an example of the medical image on which CAD information (character information) was displayed. It is a figure which shows an example of the medical image on which CAD information (indicator) was displayed. It is a figure which shows the change of the display mode of an indicator. It is a figure which shows an example of the medical image on which CAD information (CAD outline) was displayed. It is a figure which shows an example of the medical image on which CAD information (CAD mark) was displayed. It is a block diagram which shows the functional structure of the image interpretation terminal of FIG. It is a figure which shows the flow of the medical image display process performed by the image interpretation terminal and image server of FIG. It is a flowchart which shows the medical image display control process performed by the interpretation terminal in step S7 of FIG. It is a figure which shows an example of the transition of CAD information displayed on a medical image by the medical image display process of FIG. It is a figure which shows another example of the transition of CAD information displayed on a medical image by the medical image display process of FIG.

(Configuration of Medical Image Display System 100)
First, the configuration will be described.
FIG. 1 shows a system configuration of a medical image display system 100 in the present embodiment.
The medical image display system 100 is a system that captures a medical image, detects an abnormal shadow candidate from the medical image, and provides detection result information to the interpretation doctor together with the medical image.

  As illustrated in FIG. 1, the medical image display system 100 includes an image generation device 1, an abnormal shadow candidate detection device 2, an image server 3, and an image interpretation terminal 4. These devices 1 to 4 are connected to each other through a communication network N constructed in a medical institution such as a LAN (Local Area Network) so that data can be transmitted and received between them. The DICOM (Digital Imaging and Communication in Medicine) standard is applied to the communication network N.

Hereinafter, each component apparatus 1-4 is demonstrated.
The image generation apparatus 1 captures a human body and generates digital data of the captured image (medical image). For example, CR (Computed Radiography), FPD (Flat Panel Detector)
), CT (Computed Tomography), MRI (Magnetic Resonance Imaging), cassette-dedicated readers, film digitizers, and other modalities are applicable. In the present embodiment, it is assumed that a breast-specific CR that performs X-ray imaging of the left and right breasts is applied as the image generation apparatus 1 to generate image data of a breast image.

  The image generation apparatus 1 is an apparatus that complies with the above-mentioned DICOM standard, and can input various information attached to the generated medical image, for example, patient information and examination information from the outside, and can also automatically generate the information. it can. The patient information includes information such as patient identification information (for example, patient ID) for identifying the patient, patient name, sex, date of birth, and the like. The examination information includes information such as examination identification information (for example, examination ID) for identifying the examination, examination date, examination site, imaging direction, modality type, and the like. The image generation apparatus 1 adds the above patient information, examination information, UID (Unique ID) for identifying the image as header information to the generated medical image, and detects an abnormal shadow candidate detection apparatus 2 via the communication network N. And to the image server 3. In addition, when not conforming to the DICOM standard, incidental information can be input to the image generating apparatus 1 using a DICOM conversion apparatus (not shown).

  The abnormal shadow candidate detection device 2 is a computer that performs image analysis of a medical image supplied from the image generation device 1 and performs detection processing of an abnormal shadow candidate. The abnormal shadow candidate detection device 2 includes a control unit configured by a CPU (Central Processing Unit) and a RAM (Random Access Memory), a storage unit such as an HDD (Hard Disk Drive), and a communication unit such as a LAN card. The storage unit of the abnormal shadow candidate detection device 2 stores a detection algorithm detection algorithm corresponding to the type of abnormal shadow to be detected. The control unit of the abnormal shadow candidate detection device 2 is stored in the storage unit. The abnormal shadow candidate is detected from each medical image input via the communication unit in cooperation with the detection program. For example, mass candidates in the breast image and shadow candidates of the microcalcification cluster are detected.

  As an abnormal shadow candidate detection algorithm, a known algorithm can be applied. For example, as an algorithm for a tumor shadow candidate in a breast image, a method using an iris filter disclosed in Japanese Patent Laid-Open No. 10-91758, a method using a Laplacian filter (Journal of the Institute of Electronics, Information and Communication Engineers (D-II) , Vol. J76-D-II, no. 2, pp. 241-249, 1993), etc. are applicable. In addition, as a detection algorithm for micro-calcification cluster shadow candidates, for example, Morphology filter (The Institute of Electronics, Information and Communication Engineers (D-II), Vol.J71-D-II, no.7, pp.1170-1176, 1992), Laplacian filter (The Institute of Electrical, Information and Communication Engineers Journal (D-II), Vol. J71-D-II, no. 10, pp. 1994-2001, 1998) Applicable.

  When the abnormal shadow candidate detection process by the detection algorithm is completed, the abnormal shadow candidate detection device 2 generates detection result information (hereinafter referred to as CAD information) of the abnormal shadow candidate. The CAD information includes, for example, the presence / absence of an abnormal shadow candidate, character information indicating the number of detected abnormal shadow candidates, position information of each detected abnormal shadow candidate area, and a representative point (for example, a center of gravity) of each detected abnormal shadow candidate Etc.) of multiple items such as position information. Then, the header information of the detection source medical image is added to the generated CAD information and transmitted to the image server 3 by the communication unit.

  The image server 3 includes an image DB 351, stores the medical image generated by the image generation device 1 in association with the CAD information received from the abnormal shadow candidate detection device 2, and manages input / output thereof. To do.

FIG. 2 shows a functional configuration example of the image server 3.
As shown in FIG. 2, the image server 3 includes a control unit 31, an operation unit 32, a display unit 33, a communication unit 34, and a storage unit 35, and each unit is connected by a bus 36.

The control unit 31 includes a CPU, a RAM, and the like. The CPU of the control unit 31 reads out various programs such as a system program and a processing program stored in the storage unit 35, expands them in the RAM, and executes various processes according to the expanded programs.
For example, the control unit 31 executes server-side processing of medical image display processing (see FIG. 9) described later.

  The operation unit 32 includes a keyboard provided with character input keys, numeric input keys, various function keys, and the like, and a pointing device such as a mouse, and a key press signal pressed by the keyboard and an operation signal by the mouse. To the control unit 31 as an input signal.

  The display unit 33 includes, for example, a monitor such as a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display), and displays various screens according to instructions of display signals input from the control unit 31.

  The communication unit 34 is configured by a LAN card or the like, and transmits / receives data to / from an external device connected to the communication network N via a switching hub.

  The storage unit 35 includes, for example, an HDD (Hard Disk Drive), a semiconductor nonvolatile memory, or the like. The storage unit 35 stores various programs as described above. In addition, the storage unit 35 stores an image DB (Data Base) 351 for storing medical images captured from the image generation apparatus 1 and CAD information captured from the abnormal shadow candidate detection apparatus 2.

The image DB 351 has an image management table that stores management information regarding each medical image stored in the image DB 351. In the image management table, management information for each medical image is stored as one record. The management information includes UID, patient information, examination information, and file information (file names, file storage locations, update dates, file sizes, etc. of medical images and corresponding CAD information).
When a medical image is received from the image generation apparatus 1, the received medical image is stored in the image DB 351, and management information is created based on the received medical image header information by the control unit 31, Stored in the image management table. When the CAD information from the abnormal shadow candidate detection device 2 is received, the received CAD information is stored in the image DB 351, and a record in which the CAD information and the UID match from the image management table by the control unit 31. The file name and storage location of CAD information are additionally written in the retrieved record. In this way, in the image DB 351, medical image and detection result information of abnormal shadow candidates detected from the medical image are stored in association with each other.

  The storage unit 35 stores login information 352 such as an interpreting doctor ID and a password for each interpreting doctor who is a user who uses the interpreting terminal 4. Furthermore, a stage display setting table 353 is stored in the storage unit 35. FIG. 3 shows a data storage example of the stage display setting table 353.

  Here, when the interpretation doctor displays a medical image on the interpretation terminal 4 to perform interpretation, it is preferable to display CAD information because an oversight of an abnormal shadow candidate can be prevented. However, depending on the interpretation doctor, it may be possible to perform interpretation without confirming the CAD information. In this case, if the CAD information is confirmed, an oversight that can be prevented may occur. On the other hand, CAD information is auxiliary information to the last, and is not absolutely accurate. There may be false positive candidates. For this reason, if all CAD information is displayed from the beginning, prejudice may be given to the interpreting doctor, and as a result, a non-lesional part may be judged as a lesion, or a lesion that should be discovered may be overlooked. is there. Therefore, in the present embodiment, CAD information is displayed step by step when displaying a medical image, thereby assisting an interpretation doctor to make a diagnosis without prejudice and without oversight.

  Which CAD information is displayed in what order and when is the best support for the interpreting doctor depends on the interpreting doctor's experience, skills, and preferences. Therefore, in the image server 3 according to the present embodiment, it is possible to set the display contents of CAD information for each interpretation doctor. The setting of the display content of the CAD information can be performed by input from the operation unit 32 or the operation unit 42 of the image interpretation terminal 4. As the contents of the CAD information display, for example, as shown in FIG. 3, the number of stages when displaying the CAD information, whether to switch each stage automatically or manually, and displayed at each stage Items to be displayed (display items), display time (in the case of automatic), and the like. Examples of display items include character information P1 indicating the presence or absence of abnormal shadow candidates, character information P2 indicating the number of abnormal shadow candidates detected, an indicator P3 indicating the presence or absence of abnormal shadow candidates, and each detected abnormal shadow candidate. Includes drawing information (referred to as CAD outline) P4 indicating the area as a line, drawing information (referred to as CAD mark) P5 indicating the representative point of each detected abnormal shadow candidate (for example, the center of gravity of the abnormal shadow candidate area), etc. It is.

FIG. 4 shows an example of a medical image on which character information P1 and character information P2 are displayed. As shown in FIG. 4, the character information P1 and the character information P2 are displayed in an overlay on a region that does not overlap the subject region R in the medical image, for example, a background region of the medical image. Note that the character information displayed in an overlay manner is not limited to the character information P1 and P2.
FIG. 5A shows an example of a medical image on which the indicator P3 is displayed. The indicator P3 is an image that is displayed when CAD information corresponding to a medical image exists. The indicator P3 changes to a different display mode as shown in FIG. 5B when there is an abnormal shadow candidate in the medical image, so that the interpretation doctor can recognize at a glance whether there is an abnormal shadow candidate. It has become.
FIG. 6 shows an example of a medical image on which the CAD outline P4 is displayed. As shown in FIG. 6, the CAD outline P4 indicates a region where an abnormal shadow candidate exists in the medical image.
FIG. 7 shows an example of a medical image on which the CAD mark P5 is displayed. As shown in FIG. 7, the CAD mark P5 indicates the position of the representative point of the abnormal shadow candidate in the medical image.

  Information set by the operation unit 32 or the operation unit 42 is stored in the stage display setting table 353 shown in FIG. The setting of the display contents of the CAD information may be performed by each interpretation doctor, or may be set by an upper interpretation doctor who is an administrator in consideration of the ability and nature of each interpretation doctor. . When the interpretation doctor performs the setting for himself / herself, in the stage display setting table 353, the control unit 31 controls so that only the setting information corresponding to the interpretation doctor ID authenticated at the time of login can be rewritten. When the administrator sets the stage display, the interpretation doctor ID of each interpretation doctor and the interpretation doctor ID of the administrator are separately stored in the storage unit 35 and stored in the storage unit 35. It is controlled by the control unit 31 so that only the setting information of the interpretation doctor ID corresponding to the interpretation doctor ID can be rewritten.

  Returning to FIG. 1, the interpretation terminal 4 acquires the medical image designated by the operation of the interpretation doctor and the CAD information corresponding thereto from the image server 3 and displays it.

FIG. 8 shows a functional configuration example of the image interpretation terminal 4.
As shown in FIG. 8, the interpretation terminal 4 includes a control unit 41, an operation unit 42, a display unit 43, a communication unit 44, and a storage unit 45, and each unit is connected by a bus 46.

The control unit 41 includes a CPU, a RAM, and the like. The CPU of the control unit 41 reads out various programs such as system programs and processing programs stored in the storage unit 45, expands them in the RAM, and executes various processes according to the expanded programs.
For example, the control unit 41 executes an interpretation terminal side process of a medical image display process to be described later.

  The operation unit 42 includes a keyboard having character input keys, numeric input keys, various function keys, and the like, and a pointing device such as a mouse, and a key pressing signal pressed by the keyboard and an operation signal by the mouse. Are output to the control unit 41 as an input signal.

  The display unit 43 includes, for example, a monitor such as a CRT or LCD, and displays various screens in accordance with display signal instructions input from the control unit 41.

  The communication unit 44 is configured by a LAN card or the like, and transmits / receives data to / from an external device connected to the communication network N via a switching hub.

  The storage unit 45 is configured by, for example, an HDD or a semiconductor nonvolatile memory. The storage unit 45 stores various programs as described above. In addition, the storage unit 45 stores image processing parameters (a lookup table defining a gradation curve used for gradation processing, an enhancement degree of frequency processing, and the like) for adjusting a medical image to an image quality suitable for diagnosis. doing.

(Operation of Medical Image Display System 100)
Next, the operation of the medical image display system 100 will be described.
FIG. 9 shows a flowchart of a medical image display process executed by the image server 3 and the image interpretation terminal 4. The server side process of the medical image display process is executed in cooperation with the control unit 31 and the program stored in the storage unit 35. The interpretation terminal side process of the medical image display process is executed in cooperation with the control unit 41 and the program stored in the storage unit 45.

  First, in the interpretation terminal 4, when the interpretation doctor ID and password are input by the operation unit 42 from the login screen displayed on the display unit 43 and login is instructed, the interpretation doctor ID and password are obtained by the communication unit 44. (Step S1). In the image server 3, when the interpretation doctor ID and password are received by the communication unit 34, user authentication is performed (step S2). Then, setting information corresponding to the authenticated user ID is read from the stage display setting table 353 of the storage unit 35 and transmitted to the image interpretation terminal 4 by the communication unit 34 (step S3).

  In the radiogram interpretation terminal 4, when the user setting information is received by the communication unit 44, the received setting information is stored in the RAM of the control unit 41 (step S4).

Next, a medical image is selected in accordance with the operation of the operation unit 42, and a request for acquiring the selected medical image is transmitted to the image server 3 by the communication unit 44 (step S5).
In step S <b> 5, first, a search screen is displayed on the display unit 43 in response to an operation by the operation unit 42. When search conditions such as patient ID and examination ID are input by the operation unit 42 on the search screen, the search conditions and search request input by the communication unit 44 are transmitted to the image server 3. In the image server 3, the management information of the medical image that matches the search condition is searched from the image management table of the image DB 351, the list data of the medical image that matches the search condition is created and transmitted to the interpretation terminal 4 by the communication unit 34. Is done. In the interpretation terminal 4, when list data is received by the communication unit 44, an image selection screen based on the list data is displayed on the display unit 43. On the image selection screen, for example, a list having items such as an examination ID, a patient ID, a patient name, a modality type, and an examination site / direction is displayed for each examination unit, and a medical image to be displayed on the display unit 43 is operated. The configuration is selectable via the unit 42. When a medical image for examination to be displayed is selected by operating the operation unit 42, an acquisition request for the selected medical image is transmitted to the image server 3 by the communication unit 44.

  In the image server 3, when a medical image acquisition request is received by the communication unit 34, the image data of the medical image requested for acquisition and CAD information corresponding to the medical image are retrieved from the medical image DB 351 and acquired. It is transmitted to the interpretation terminal 4 by the communication unit 34 (step S6).

  In the image interpretation terminal 4, when a medical image and CAD information (when CAD information corresponding to a medical image exists) is received by the communication unit 44, a medical image display control process is executed (step S7).

FIG. 10 shows a flowchart of the medical image display control process executed by the image interpretation terminal 4. The medical image display control process is executed in cooperation with the control unit 41 and a program stored in the storage unit 45.
First, the medical image and CAD information acquired from the image server 3 are stored in the RAM of the control unit 41, and the acquired medical image is displayed on the display unit 43 for a predetermined time (T0 minutes) (step S101).
Next, it is determined whether or not CAD information exists in the RAM (step S102). If it is determined that CAD information exists (step S102; YES), 1 is set in the counter n. In addition, the setting information stored in the RAM is referred to, and the number of stages when the CAD information is displayed in stages is set in the variable m (step S103). Based on the setting information stored in the RAM, the CAD information of the display items set in the n-th stage is superimposed and displayed on the medical image on the display unit 43 (step S104).

  When the n-th stage CAD information is displayed, the setting information is referred to and it is determined whether or not the CAD information display stage is automatically switched (step S105). If it is determined that switching of the CAD information display stage is automatic (step S105; YES), the process waits until the display time set in the n-th stage elapses (step S106). When the set display time has elapsed (step S106; YES), the process proceeds to step S109.

  On the other hand, if it is determined in step S105 that the switching of the CAD information display stage is manual (step S105; NO), it is determined whether n + 1> m and not n + 1> m. (Step S107; NO), a CAD information addition button (not shown) is displayed on the screen of the display unit 43, and the pressing of the CAD information addition button by the operation unit 42 is awaited (Step S108). Here, the CAD information addition button is a button for switching the display stage of the CAD information, that is, inputting an instruction to switch the display item of the CAD information displayed on the medical image. When the CAD information addition button is pressed by the operation unit 42 (step S108; YES), the process proceeds to step S109. On the other hand, if it is determined that n + 1> m (step S107; YES), the process proceeds to step S111.

  In step S109, the value of the counter n is incremented by one. Then, it is determined whether or not n> m (step S110). If it is determined that n> m is not satisfied (step S110; NO), the process returns to step S104, and the processes of steps S104 to S110 are repeatedly executed. In step S104, the CAD information of the display item at the nth stage is additionally displayed on the medical image.

  On the other hand, if n> m is determined (step S110; YES), it is determined whether or not an instruction to display the next medical image acquired from the image server 3 is input by the operation of the operation unit 42. (Step S111). If it is determined that an instruction to display the next medical image is input by the operation unit 42 (step 111; YES), the process returns to step S101, and the processes of steps S101 to S110 are repeatedly executed for the next medical image. . When it is determined that an instruction to display the next medical image is not input by the operation unit 42 (step S111; NO), it is determined whether or not an instruction to end display of the medical image is input by the operation unit 42 (step S111: NO). Step S112). If it is determined by the operation unit 42 that a medical image display end instruction has not been input (step S112; NO), the process returns to step S111. If it is determined that the display end instruction for the medical image is input by the operation unit 42 (step S112; YES), the process proceeds to step S8 in FIG.

  In step S8 of FIG. 9, it is determined whether or not logoff is instructed by operating the operation unit 42. If it is determined that logoff is not instructed (step S8; NO), the process returns to step S5. If it is determined that logoff has been instructed (step S8; YES), logoff is performed (step S9), and the medical image display process ends.

11A and 11B show an example of transition of CAD information displayed on a medical image by the medical image display process. FIG. 11A shows, for example, character information P1 and character information P2 for T1 minutes as the first stage when displaying CAD information in the setting information of the logged-in interpretation doctor in the stage display setting table 353, and CAD as the second stage. An example of display when the outline P4 is displayed for T2 minutes and the CAD mark P5 is set to be displayed as the third stage is shown. FIG. 11B shows, for example, a case where the setting information of the logged-in interpreting doctor in the stage display setting table 353 is set to display the indicator P3 for T4 as the first stage and display the character information P2 as the second stage. A display example is shown.
As shown in FIGS. 11A and 11B, since CAD information is displayed stepwise on the medical image, the CAD information is displayed at the minimum necessary level such as character information P1, P2, and indicator P3 in the initial stage of interpretation. By doing so, it is possible to perform interpretation without preconception, and by adding CAD information to be displayed thereafter, it is possible to confirm whether or not there is an oversight of interpretation. Also, since CAD information of display items corresponding to settings for each interpreting doctor is displayed at each stage, for example, for a doctor who interprets an interpreting doctor who needs CAD support, for example, a CAD mark, a CAD outline, etc. By displaying even the CAD information indicating the lesion position, it is possible to check whether there is an error in the determination of the lesion position of the interpretation doctor. By displaying only the character information, it is possible to check only whether there is any interpretation error. As described above, in the medical image display process, the CAD information necessary for each interpreting doctor is displayed in stages, so that each interpreting doctor can effectively use the CAD information and perform an efficient interpretation. .

  In the above-described medical image display process, if a display end instruction is input from the operation unit 42 before all the display items defined in the setting information are displayed, “display of CAD information is displayed on the display unit 43. It is preferable to display a warning such as “Not finished” and invalidate the display termination instruction. That is, it is preferable that the control unit 41 performs control for prohibiting the interpretation doctor from ending the interpretation until all the display items set in the stage display setting table 353 are displayed. As a result, the interpretation doctor can be made to confirm the CAD information without fail, so that oversight can be prevented.

  As described above, according to the medical image display system 100, the control unit 41 of the image interpretation terminal 4 is stored in association with the medical image in the image server 3 when displaying the medical image on the display unit 43. The acquired CAD information is acquired, and the acquired CAD information is displayed stepwise on the medical image. Accordingly, it is possible to prevent the doctor from giving preconceptions as in the case where all CAD information is displayed from the beginning, or the interpretation doctor not confirming the CAD information at all and causing oversight.

  In addition, since CAD information items to be displayed at each stage can be set for each user when CAD information is displayed in stages, CAD information of necessary items is provided according to an interpreting doctor who performs interpretation. Is possible.

  In addition, since the display time of each stage when displaying CAD information in stages can be set for each user, the display of each stage can be switched according to the pace of the interpreting doctor who performs the interpretation.

  In addition, since it is possible to set the display of each stage to be manually switched, it is possible to switch the display of each stage according to the current pace of the interpreting doctor who performs the interpretation.

  Further, when a display end instruction is input by the operation unit 42 before all the CAD information of items set to be displayed is displayed, a warning is given that there is CAD information that has not been displayed yet. Therefore, it is possible to prevent the interpretation doctor from performing interpretation without referring to the CAD information.

In addition, the description content in the said embodiment is a suitable example of this invention, and is not limited to this.
For example, in the above-described embodiment, the case where the image server 3 as the storage unit and the interpretation terminal 4 as the display unit and the control unit are configured as separate devices has been described as an example. The control means may be provided in one device. In this case, a medical image, CAD information, and a stage display setting table are stored in the storage unit in the apparatus, and the control unit can acquire and display the medical image and CAD information from the storage unit in the apparatus. In the above embodiment, the abnormal shadow candidate detection device 2 has been described as a separate device from the image server 3. However, the image server 3 includes a detection program for the abnormal shadow candidate detection device 2, and It may be configured to detect an abnormal shadow candidate.

  In the above embodiment, the display item set to 353 in the stage display setting table has been described as being added and displayed at each stage. However, only the display items set at each stage are displayed. It is good also as displaying the display item of all the steps when all the steps are complete | finished.

  Further, in the detection result information, the presence / absence of an abnormal shadow candidate, the number of detections, and the like may be output as audio information.

  In the above description, an example in which a hard disk, a semiconductor nonvolatile memory, or the like is used as a computer-readable medium of the program according to the present invention is disclosed, but the present invention is not limited to this example. As another computer-readable medium, a portable recording medium such as a CD-ROM can be applied. A carrier wave is also applied as a medium for providing program data according to the present invention via a communication line.

  In addition, the detailed configuration and detailed operation of each device constituting the medical image display system can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 Medical image display system 1 Image generation apparatus 2 Abnormal shadow candidate detection apparatus 3 Image server 31 Control part 32 Operation part 33 Display part 34 Communication part 35 Storage part 36 Bus 351 Image DB
352 Login information 353 Stage display setting table 4 Interpretation terminal 41 Control unit 42 Operation unit 43 Display unit 44 Communication unit 45 Storage unit 46 Bus

Claims (5)

Storage means for storing the medical image in association with the detection result information of the abnormal shadow candidate detected from the medical image;
Display means;
When displaying the medical image on the display means, the detection result information stored in the storage means in association with the medical image is acquired, and the acquired detection result information is stepwise on the medical image. Control means to display;
A medical image display system comprising :
An operation means for inputting an instruction to end display of the medical image;
The control means is a medical image display system for displaying a warning on the display means when a display end instruction is input by the operation means before the detection result information is all displayed . The operation means is configured to be able to set, for each user, items of detection result information to be displayed at each stage when displaying the detection result information in stages .
The control means displays detection result information stored in association with the medical image on the medical image based on an item of detection result information to be additionally displayed at each stage set for the logged-in user. The medical image display system according to claim 1, wherein the medical image display system is displayed step by step. The operation means is further configured to be able to set a display time for each stage when displaying the detection result information in stages, for each user,
The medical image display system according to claim 2, wherein the control unit switches items of detection result information to be displayed on the medical image based on display times of the respective stages set for the logged-in user. The operation means is configured to be able to input an instruction to switch items of the detection result information displayed on the medical image,
The medical image display system according to claim 2, wherein the control unit switches items of the detection result information displayed on the medical image in response to a switching instruction from the operation unit. Computer
When displaying the medical image on the display means, the medical image and the detection result information of the abnormal shadow candidate detected from the medical image are associated with each other and stored in association with the medical image to be displayed. Means for acquiring stored detection result information and displaying the acquired detection result information on the medical image stepwise ;
Means for displaying a warning on the display means when a display end instruction is input by an operation means for inputting a display end instruction for the medical image before all the detection result information is displayed;
Program to function as.

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