JP2007260064A - Display control apparatus and display control program - Google Patents

Abstract

An object of the present invention is to prevent interpretation omission when the number of images to be interpreted is large as in image diagnosis based on series images acquired by CT or MR.
An apparatus used for image diagnosis is provided with a function of generating intermediate data 13 in which information indicating an output state is recorded in a process of acquiring an image group used for diagnosis from a PACS server 3 and outputting the image group to a monitor. In the intermediate data 13, for example, the ID of the output image, the output time, etc. are recorded. Further, a function for generating information indicating the display history by aggregating the intermediate data 13 and outputting the information as the display history data 15 is provided, and the presence / absence of an insufficiently displayed image is determined according to the contents of the display history data 15. The determination is performed when a predetermined operation requesting the determination is performed, or when an operation for ending diagnosis is performed. In the determination, when it is determined that there is an image that is insufficiently displayed, a warning is issued by outputting a warning sound from the speaker 17 or the like.
[Selection] Figure 3

Description

  The present invention relates to a display control apparatus and a display control program for controlling display of an image used for image diagnosis on a monitor screen.

  In the medical field, medical images generated by X-ray simple imaging equipment, CT (Computed Tomography), MR (Magnetic Resonance), PET (Positron Emission Tomography), and ultrasound imaging equipment (hereinafter referred to as modality) A diagnosis may be made by displaying on a monitor and observing the state of the lesion or changes with time on the monitor. The so-called computer-aided diagnosis (CAD), which searches for shadows with a high possibility of lesions by image processing and supports doctors' diagnosis by attaching markers to the locations detected by the search, is also widely used. ing.

  Although CAD is useful for improving diagnosis accuracy and reducing the burden on doctors, if interpretation is performed using the CAD function from the beginning, observation of other areas from preconception that there is a lesion in the marker part May be overlooked and overlooked.

In order to prevent the oversight as described above, the invention described in Patent Document 1 detects and displays an abnormal shadow only for an area designated by a pointing device, and interprets an area where the abnormal shadow has been detected as a read-out area. Therefore, it is proposed to treat an area that has never been designated by a pointing device as an unread area. According to the present invention, the image interpretation area and the uninterpretation area of the image are displayed in a state that can be identified on the screen, so that the doctor can easily grasp the existence of the uninterpretation area and prevent omission of interpretation. be able to.
JP 2004-261300 A

  However, the method proposed in Patent Document 1 merely classifies a subject area of one image into an interpreted area and an uninterpreted area, and has a number of tens to several tens as in a CT image or an MR image. When performing diagnosis using images (hereinafter referred to as series images), or when performing diagnosis using a plurality of images obtained by imaging the same part with a plurality of types of modalities, Not necessarily enough.

  In view of the above problems, the present invention provides a function for distinguishing between an image that has been interpreted and an uninterpreted image when performing diagnosis using a plurality of images such as series images, and there are a large number of target images to be interpreted. Even in such cases, it is intended to prevent interpretation leakage.

  A display control apparatus according to the present invention is a display control apparatus that controls display of a diagnostic image on a monitor screen, and includes an image acquisition unit, an output control unit, a display history recording unit, and a warning unit described below. Features.

  The image acquisition means is means for acquiring a plurality of images acquired for one inspection purpose as one image group. A plurality of images acquired for one examination purpose are images obtained by a series of examinations that are required to be performed for making one diagnosis. For example, a series image obtained by CT inspection corresponds to a plurality of images acquired for one inspection purpose. Further, when a plurality of types of examinations are performed in order to make one diagnosis, all images obtained by the plurality of types of examinations correspond to a plurality of images acquired for one examination purpose.

The image may be acquired directly from the imaging device that generated each image, or may be acquired by searching the database when the image generated by the imaging device is registered in a database or the like.

  The output control means accepts a display request for the image group acquired by the image acquisition means, and outputs the image requested to be displayed on the monitor screen. The display request is input from an input device connected to the display control device. If there is a display request for all the images constituting the image group, the output control means outputs all the images to the monitor screen. When only a part of the images is requested to be displayed, only the image requested to be displayed is output to the monitor screen.

  The display history recording unit records the processing status by the output control unit as a display history of each image included in the image group. The processing status by the output control means can be represented by, for example, a combination of the type of processing and the time when the processing is executed. The display history may be simply a record of the processing status, but is preferably recorded after being edited so that it can be easily used in later processing. For example, it is preferable to record, for each image, a time during which images are continuously displayed on the monitor screen, a cumulative time during which images are displayed on the monitor screen, and the number of times images are output to the monitor screen.

  The warning means determines the presence or absence of an insufficiently displayed image in the image group based on the display history recorded by the display history recording means, and when there is an insufficiently displayed image, the screen display and / or audio A warning is issued. Here, an image that is insufficiently displayed includes an image that has never been displayed, an image that has been displayed for a short time, an image that has not been enlarged, and the like. Whether each image has been displayed, whether it has been enlarged, and for how long it has been displayed are determined based on the display history.

  According to the above configuration, a doctor who performs image diagnosis can know the presence or absence of an insufficiently displayed image only by performing a predetermined operation, and thus can reliably prevent omission of interpretation.

  Here, the warning means issues a warning based on the premise that there is a possibility of image interpretation omission when there is an insufficiently displayed image. In some cases, there is no problem even if the diagnosis is terminated while an image with insufficient display exists. That is, after the diagnosis is completed, an image that is insufficiently displayed can be considered as an image that was not regarded as important in the diagnosis.

  Therefore, in one embodiment of the present invention, when the output control unit receives a display request for an image group for which diagnosis has been completed, the output control unit displays an image that is insufficiently displayed based on the display history recorded by the display history recording unit. Sorting and limiting the output of the sorted image to the monitor screen. Alternatively, when the output control unit receives a display request for the image group for which diagnosis has been completed, the output control unit selects an image that is insufficiently displayed based on the display history recorded by the display history recording unit, and the selected image May display on the monitor screen after issuing a warning by screen display and / or voice output that the display is insufficient. Thereby, when referring to an image after completion of diagnosis, it is possible to preferentially refer to an image regarded as important at the time of diagnosis.

  Furthermore, as another embodiment of the present invention, when an operator identifying means for identifying an operator who performs a display request operation is further provided, and the output control means is requested to be displayed by a person other than a registered operator In addition, a mode in which an image that is insufficiently displayed is selected based on the display history recorded by the display history recording unit and the output of the selected image to the monitor screen is also conceivable. Thus, for example, a radiologist who has made a diagnosis can refer to all images on the monitor screen, but a doctor who views the diagnosis results should refer only to the images regarded as important in the diagnosis. In addition, only useful information can be made widely available.

  The display control program of the present invention is a display control program for controlling the display of diagnostic images on a monitor screen, and acquires a plurality of images acquired for one examination purpose as one image group in a computer. An image acquisition process, an output control process for receiving a display request for the image group, and outputting the image requested to be displayed to a monitor screen, and a processing status of the output control process for each image included in the image group Display history recording process for recording as a display history, and determining whether there is an insufficiently displayed image in the image group based on the display history recorded in the display history recording process, and displaying an insufficiently displayed image And warning processing for issuing a warning by screen display and / or sound when there is a message.

If the display control program of the present invention is installed in a general-purpose computer, the computer can function as the display control apparatus of the present invention.

  The display control device and the device in which the display control program of the present invention is installed can display each image when performing image diagnosis based on a large number of images, such as CT examination, MR examination, or examination using a plurality of types of modalities. Based on the history, the presence / absence of an insufficiently displayed image is determined, and if there is an insufficiently displayed image, a warning is given. As a result, the diagnosis does not end without interpretation of an image including information useful for diagnosis, so that the quality of the image diagnosis is improved and the doctor is relieved from the anxiety of interpretation failure.

  Further, according to an embodiment of the display control apparatus and the program of the present invention, an image that has not been sufficiently displayed until the end in the course of image diagnosis is received a display request for an image group including the image after the diagnosis is completed. Therefore, images that are regarded as important in diagnosis can be preferentially referred to because they are excluded from the display target or displayed in a state that can be distinguished from other images.

  In addition, according to another embodiment of the present invention, the display of an image can be restricted by a person who requests display of the image, so that only an image regarded as important in diagnosis can be widely referred to, and other images are diagnosed. It is possible to make it impossible for other doctors to refer to the doctor.

  FIG. 1 illustrates a medical information system suitable for introducing the display control apparatus and program of the present invention. As shown in the figure, this system includes modalities (M) 1a to 1d that generate image information from information obtained by subject photographing, a workstation (WS) 2 that is used to check image information generated by the modality, PACS (Picture Archiving and Communication System) server 3 that manages already acquired image information, workstation 5 used when radiologists perform image diagnosis, and doctors in each department (hereinafter referred to as doctors) refer to the diagnosis results It is comprised by the workstation 6a-6c etc. which are used when performing. These devices and systems are connected to each other via a network 7 so that they can communicate with each other.

  The modalities 1a to 1d include a type that directly generates image data from data obtained by subject photography such as CT, MR, and an ultrasonic imaging device, and a subject photography such as CR (Computed Radiography) and mammography. There is a type in which an image is recorded on a recording medium such as a film and image data is generated by reading the image from the recording medium. In the latter type of modality, a reading device that reads an image from a recording medium is connected to the network 7. In the present embodiment, the modalities 1a to 1d are all devices conforming to the DICOM standard, and each modality 1a to 1d is an image obtained by adding incidental information defined by the DICOM standard to the generated image data. Output as information.

  The image confirmation workstation 2 includes a processing device, one or two high-definition displays, and input devices such as a keyboard and a mouse. This processing apparatus incorporates a software program that provides a function for supporting image confirmation and adjustment work. Further, the workstation 2 has a communication function for receiving image information conforming to DICOM from the modalities 1 a to 1 d and transferring the confirmed and adjusted image information to the server 3.

  The server 3 stores the image information transferred from the workstation 2 in the large-capacity storage 4 in a general-purpose computer, and the filed image information from the workstation 5 or the image reference workstation 6. It incorporates a function as an image server that is provided in a format that can be referred to upon request. The mass storage 4 is not limited to a hard disk directly connected to the server 3, but may be a NAS (Network Attached Storage) or a SAN (Storage Area Network) connected to the network 7.

  The workstation 5 used by the radiologist for image diagnosis is composed of a processing device, one or two high-definition displays, and input devices such as a keyboard and a mouse. In this processing apparatus, as a function to support diagnosis by a radiologist, the display control function of the present invention, a function of automatically detecting and highlighting a lesion-like portion in an image, and a diagnosis report are supported. Features are built in. Further, the workstation 5 has a communication function for accessing the server 3 to acquire image information compliant with DICOM and transferring information related to diagnosis such as a diagnosis report to the server 3.

  The workstations 6a to 6c used by the doctor are configured by a processing device, a high-definition display, and input devices such as a keyboard / mouse. This processing apparatus incorporates various functions such as a display control function of the present invention and a function of referring to image information and diagnostic reports stored in the server 3.

  The network 7 is a local area network that connects various apparatuses in the hospital. However, for example, when a part of the workstations 6a to 6c is installed in another hospital or clinic, the network 7 has a configuration in which local area networks are connected to each other via the Internet or a dedicated line. In any case, it is desirable that the network 7 can realize high-speed transfer of image information such as an optical network.

  When the subject is photographed, the image information output by the modalities 1a to 1d is displayed on the screen of the workstation 2 and is checked and adjusted by an engineer. The image information after confirmation is transferred to the server 3 and filed in the storage 4. The filed image information is displayed on the screen of the workstation 5 in response to a request from the radiologist and used for diagnosis. When the diagnosis is completed, information generated at the time of diagnosis, such as a diagnosis report, is transferred to the server 3 and filed in the storage 4 in association with the image information. All the filed information is displayed on the screens of the workstations 6a to 6c in response to a request from the doctor.

  In image diagnosis, diagnosis is often made comprehensively based on the interpretation results of a plurality of images. For example, in the case of diagnosis based on CT images, diagnosis is performed with reference to a plurality of tomographic images constituting a series. In addition, if you cannot be sure of the diagnosis with only one modality inspection, you can also perform an inspection with other modalities and make a diagnosis while comparing the images generated by multiple modalities on the screen. is there. In CT examination and MR examination, the slice thickness is usually set to about 1 mm to 10 mm and a cross section of dozens to several tens is photographed. Therefore, when both CT examination and MR examination are performed, the target of interpretation The number of images becomes several tens.

  In this embodiment, as one of the diagnosis support functions of the workstation 5, when the number of images to be interpreted is large, a list 8 of reduced images of each image is displayed on the screen as illustrated in FIG. There is provided a function of displaying and enlarging and displaying the selected image as an image 9 having a size suitable for interpretation in response to an image selection operation by a pointing device. The workstations 6a to 6c have a function of displaying an image in the same display format. In the illustrated example, the list of reduced images can be scrolled in the horizontal direction, whereby all reduced images of the series image can be viewed and designated. Further, the image 9 enlarged and displayed by a predetermined operation can be switched to an image at an adjacent slice position without individually specifying each reduced image. If the same operation is repeated, the image 9 is sequentially switched to an image at an adjacent slice position, and images at all slice positions can be continuously displayed according to the order of the slice positions.

  Hereinafter, a function for preventing interpretation errors on the screen illustrated in FIG. 2, that is, a function according to the present invention will be described in detail. FIG. 3 shows a configuration for realizing the functions according to the present invention. The processing device of the workstation 5 includes a RAM that temporarily stores a program and data being executed, a VRAM that temporarily stores data being output to the monitor, and a disk and a memory based on a procedure defined in the program. A CPU for executing various processes including data transfer is provided. FIG. 2 is a diagram conceptually showing the image acquisition means 10, the output control means 12, the display history recording means 14, and the warning means 16 realized by causing the CPU to execute processing by the RAM 11, the VRAM 18, and the program.

  As shown in the figure, the image acquisition means 10 acquires a plurality of pieces of image information acquired by a series of examinations from images registered in the PACS server 3 and stores them in the RAM 11. Specifically, when the diagnostic screen is called, the image acquisition unit 10 first establishes a connection with the PACS server 3 as illustrated in the flowchart of FIG. 4 (S101) and is acquired through a series of examinations. The retrieved image information is searched (S102).

  When a doctor or radiologist requests an examination for the purpose of making some diagnosis (eg, the presence or absence of a tumor), the examination may be an examination with only one type of modality, or an examination with more than one type of modality. In some cases. The inspection may be completed in one day or may be performed over two days. Therefore, when extracting a plurality of pieces of image information acquired for one examination purpose from the image information registered in the PACS server 3, narrowing down is performed using the patient ID and examination ID included in the image information as keys. Do. In addition, when the inspection always ends in one day, information on the inspection date may be used as a search key.

  Subsequently, the image acquisition means 10 reads out the image information narrowed down by the search from the PACS server 3 and copies it to the RAM 11 (S103). Thereafter, if an operation for performing the next diagnosis is performed for another patient (or another part of the same patient) (S104), the processes of steps S102 and S103 are repeated. If the next diagnosis is not performed, the connection with the PACS server 3 is disconnected (S105) and the process is terminated.

  The output control means 12 is a means for controlling image output to the monitor 19 and constitutes an image to be displayed on the monitor screen using image information stored in the RAM 11. Specifically, the output control unit 12 determines the screen layout (S201) as exemplified in the flowchart of FIG. 5 and enlarges or reduces the image data included in the image information stored in the RAM 11. Processing is performed (S202). Alternatively, when the image information includes image data having a size that has been generated in advance and reduced image data, necessary image data is selected according to the layout.

  Then, the output control means 12 writes the image data that has undergone image processing at the position indicated by a predetermined address in the VRAM 18 (S203). Here, it is assumed that the image configured on the VRAM 18 is displayed on the monitor screen as it is.

  Subsequently, the output control means 12 determines the image ID of the image to be written in the VRAM 18, the size of the image, the arrangement position (address) of the image on the VRAM, and the writing time to the VRAM by a predetermined predetermined value in the RAM 11. (S204). The image ID is an identifier assigned to each image. For example, in the case of a series image acquired by CT examination, one image ID is assigned to each image at each slice position. . Further, the size of the image may be recorded as the number of pixels in the vertical and horizontal directions, but only the distinction between the reduced display size and the image interpretation size may be used. Hereinafter, the data recorded here is referred to as intermediate data 13.

  Thereafter, the output control means 12 repeats the processes of steps S202 to S204 each time an operation for switching the screen such as selection of a reduced image is received (S205). If no operation is performed, the screen configured in step S203 continues to be displayed as it is.

  As illustrated in the flowchart of FIG. 6, the display history recording unit 14 refers to the intermediate data 13 generated by the output control unit 12 (S301), and calculates the time during which each image was continuously displayed (S301). (S302) The number of display times of each image is counted (S303), the cumulative display time of each image is calculated (S304), and the display history data 15 in which the data obtained by the calculation or counting is recorded is generated (S305). .

  The time during which the images are continuously displayed is detected for each address recorded in the intermediate data, and the change in the image ID of the image written in the address is detected. It is obtained by calculating the time up to the time of transition to the image ID. At this time, it is desirable to calculate the display time for each image size by separating the intermediate data based on the image size information. The number of times of display is obtained by providing a counter for each image ID and counting up the counter of the corresponding image ID every time a change in the image ID at each address is detected. The accumulated display time can be obtained by integrating the display time for each operation for each image ID.

  The display history recording unit 14 may generate and update the display history data 15 at the timing when the output control unit 12 updates the intermediate data 13, or at a predetermined timing, for example, when an operation for ending diagnosis is accepted. You may perform the said process. The display history data 15 generated by the display history recording unit 14 is transferred to the PACS server 3 when a diagnosis end operation is detected.

  As illustrated in the flowchart shown in FIG. 7, the warning unit 16 refers to the display history data 15 when an operation for instructing the end of diagnosis is detected (S401), and determines the presence or absence of an image whose display count is 0. To do. If there is no image whose display count is 0, the process ends. When there is an image whose display count is 0, the image ID of the image is acquired from the display history data 15, and the output control means 12 is instructed to display a reduced image list of only the image indicated by the image ID on the screen. (S403). On the other hand, the warning means 16 outputs a warning sound to the speaker 17. Or, a voice message such as “The image being displayed is not being read. Are you sure you want to end the diagnosis as it is?” Is output. Alternatively, a similar message may be displayed on the screen.

  Note that the processing of the warning means 16 is not limited to when an operation for instructing the end of diagnosis is detected, but may be executed when a predetermined operation for requesting confirmation of image interpretation omission is detected. . As a result, the doctor can check the existence of the unread image by displaying the reduced image list of the unread image when the image that has been read and the unread image cannot be distinguished in the course of diagnosis.

  As described above, according to the display control apparatus and program of the present embodiment, whether or not a series image acquired by CT examination and a plurality of images acquired by a plurality of modalities are all displayed on the monitor screen. Is automatically determined, and if there is an image that is not displayed once, a warning sound or the like is warned. Not only when some of the images in the series are not interpreted, but for example, CT examination, MR examination, and PET examination are performed, but the diagnosis is attempted to be terminated without using the PET image. A warning is also given when a failure occurs. Therefore, according to the apparatus and program of the present embodiment, it is possible to effectively prevent the occurrence of image interpretation omission.

  Here, the processing of the warning means illustrated in FIG. 7 determines that there is an interpretation error due to the presence of an image that has not been displayed, but an interpretation error may occur even when all the images are displayed. For example, when the reduced image is displayed but not enlarged, or when the enlarged image is displayed for a few seconds, there is a possibility that sufficient observation has not been performed. Therefore, even when all the images are displayed, it is desirable to perform the warning when there is an image that may not be sufficiently observed.

  For example, in the above embodiment, if the display time of each image to be recorded as the display history is calculated for each image size, whether or not the image has been enlarged can be determined based on the display history. In the above embodiment, since the accumulated display time is recorded as the display history, if a predetermined threshold is set in advance, whether or not sufficient observation has been performed depending on whether or not the accumulated display time exceeds the threshold. It can be determined whether or not. Therefore, by adding these determination processes to the process illustrated in FIG. 7, a warning can be issued even when an image that has not been enlarged and an image with a short display time exists.

  Here, as described above, the display history data is generated and used mainly for the purpose of detecting omissions in interpretation. However, the display history data generated as shown in FIG. By registering, it is possible to restrict the reference of the image based on the display history after the diagnosis is completed. For example, if a doctor performs an operation for instructing the end of diagnosis in spite of outputting a warning, an image that has not been sufficiently displayed (observed) is an image that is not necessary for diagnosis or an image that is not important for diagnosis Is likely. Such an image is an image that no longer needs to be viewed by a radiologist who has made a diagnosis, and an image that need not be viewed by a doctor who refers to the diagnosis result.

  The display history data can also be used to limit the reference of images that do not need to be viewed as described above. For example, prior to the processing of the output control means of FIG. 5, the preprocessing shown in the flowchart of FIG. 8 is executed. In the preprocessing, it is first determined whether or not the image group requested to be displayed has been diagnosed. Whether or not the image group requested to be displayed has been diagnosed can be determined by requesting the PACS server 3 to transfer display history data when the image acquisition unit 10 acquires image information. If the display history data is not registered in the PACS server 3, the image group is used for diagnosis for the first time, so the output control process of FIG. 5 is executed.

  On the other hand, if the display history data is registered in the PACS server 3, the image group has already been diagnosed, so the display history data transferred from the PACS server 3 is referred to (S502) and sufficient display is performed. The image information in which the number of display times is 0 and the enlarged display time is 0 or less than a predetermined number of seconds is classified as a view-restricted image (S503). Then, when the browsing screen is displayed (S504), for example, the browsing restricted image is hidden, or when the browsing restricted image is displayed, a mark symbol or message indicating that the image has not been used for diagnosis is displayed. To do.

  By adding the pre-processing illustrated in FIG. 8, not only omission of interpretation at the time of image diagnosis can be prevented, but also only useful images can be preferentially viewed when viewing images after completion of diagnosis. Become.

  Further, instead of the process of step S501 in FIG. 8, a process of identifying and determining an operator is performed. When the operator of the workstation 5 is a radiologist, it depends on whether the diagnosis is completed or after the diagnosis is completed. First, the output control process illustrated in FIG. 5 may be performed, and if the operator is a doctor, the processes in steps S502 to S504 in FIG. 8 may be performed. The operator can identify based on the login ID when logging into the workstation or PACS. The viewing restriction based on the operator's identification is useful, for example, when the radiologist and the examiner perform image diagnosis and image viewing on a shared workstation.

  As described above, the present invention is an invention related to display control of an apparatus used for image diagnosis. However, when implemented as one apparatus constituting a PACS, a particularly significant effect can be exhibited.

Diagram showing an example of a medical information system The figure which shows the example of a display of the screen where an image diagnosis is performed The conceptual diagram showing the function implement | achieved by the apparatus and program of this invention Flowchart showing a processing example of image acquisition means Flow chart showing an example of processing of the output control means The flowchart which shows the example of a process of a display history recording means Flow chart showing a processing example of warning means The flowchart which shows an example of the pre-process of the process of an output control means

Explanation of symbols

1a-1d modality, 2, 5, 6a-6c workstation, 3 servers,
4 mass storage, 7 network,
8 Reduced image list, 9 Enlarged image, 11 RAM, 13 Intermediate data,
15 display history data, 17 speakers, 18 VRAM, 19 monitor

Claims (8)

A display control device for controlling display of a diagnostic image on a monitor screen,
Image acquisition means for acquiring a plurality of images acquired for one inspection purpose as one image group;
An output control unit that receives a display request for the image group acquired by the image acquisition unit and outputs an image requested to be displayed on a monitor screen;
Display history recording means for recording the processing status by the output control means as a display history of each image included in the image group, and display in the image group is not based on the display history recorded by the display history recording means. What is claimed is: 1. A display control apparatus comprising: warning means for determining whether or not there is a sufficient image and issuing a warning by screen display and / or sound when there is an insufficiently displayed image.   The display control apparatus according to claim 1, wherein the display history recording unit records a time during which each image is displayed on a monitor screen for each display request.   The display control apparatus according to claim 1, wherein the display history recording unit accumulates and records the time during which each image is displayed on the monitor screen.   The display control apparatus according to claim 1, wherein the display history recording unit records the number of times each image is output on a monitor screen.   When the output control unit receives a display request for an image group for which diagnosis has been completed, the display control unit selects an image with insufficient display based on the display history recorded by the display history recording unit, and monitors the selected image. The display control apparatus according to claim 1, wherein output to the screen is limited. Further comprising operator identification means for identifying an operator who performs the operation of the display request;
When the display is requested by a person other than a registered operator, the output control unit selects an image with insufficient display based on the display history recorded by the display history recording unit. The display control apparatus according to claim 1, wherein output to the monitor screen is limited.   When the output control unit receives a display request for the image group for which diagnosis has been completed, the display control unit selects an insufficiently displayed image based on the display history recorded by the display history recording unit, and the selected image is displayed. 5. The display control device according to claim 1, wherein the display control device outputs a warning to the monitor screen after issuing a warning by screen display and / or sound output that the amount is insufficient. A display control program for controlling display of a diagnostic image on a monitor screen.
Image acquisition processing for acquiring a plurality of images acquired for one inspection purpose as one image group;
An output control process for receiving a display request for the image group and outputting an image requested to be displayed to a monitor screen;
A display history recording process for recording a processing status of the output control process as a display history of each image included in the image group;
Based on the display history recorded in the display history recording process, it is determined whether or not there is an insufficiently displayed image in the image group, and when there is an insufficiently displayed image, screen display and / or sound A display control program for executing a warning process for issuing a warning.

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