JP5346718B2 - Monitor management system and brightness information management device - Google Patents

Description

  The present invention relates to a monitor management system and a brightness information management apparatus that perform brightness management of a monitor that displays medical images and medical information.

  In recent years, in medical institutions, a medical image management system called PACS (Picture Archiving and Communication System for Medical Application) that manages information such as medical images and personal medical records of patients as electronic data on a network has been developed. In addition, devices for taking medical images of a subject are diversified, and various modalities such as an X-ray diagnostic apparatus, an X-ray CT apparatus, an MRI apparatus, an ultrasonic apparatus, a PET apparatus, a SPECT apparatus, and an endoscope are provided. . In general, in the above-mentioned PACS, a plurality of PCs, monitors, medical image photographing devices, etc. are connected to a luminance information management device according to the scale of a medical institution, and various data are databased and managed by the luminance information management device. The entire system is being maintained.

By the way, the monitors used in medical institutions are broadly classified into medical monitors used by diagnosticians for diagnosis of medical images, and non-medical monitors used for purposes similar to simple reference of images and general OA terminals. And exist.
Since medical monitors require a high level of image display accuracy, calibration must be performed periodically to keep the monitor brightness optimal. In this calibration, brightness, contrast, artifacts, brightness non-uniformity, chromaticity, and the like are visually inspected using a display quality control test pattern displayed on the monitor.

  For example, in Patent Document 1, the “first adjustment” for adjusting the luminance characteristic unique to each monitor of the network to a predetermined common luminance characteristic, and then using one monitor among all the monitors. By performing “second adjustment” for obtaining correction data for adjusting to appropriate luminance characteristics according to the type of data, the correction data obtained by the second adjustment is obtained for the first adjusted monitor. A technique is disclosed that can be shared by all monitors. As a result, the appearance that has been different depending on the type of image is improved over the entire network. Patent Document 2 discloses a test chart at a predetermined position based on layout information that defines a display position at which a medical image is displayed in order to appropriately adjust a difference in luminance characteristics at each display position of a large screen monitor. The LUT is displayed to adjust the brightness, and the LUT for correcting the gradation for each layout is created based on the measured brightness value, and the test chart is converted by the created LUT and the display unit has a predetermined layout. A technique is disclosed in which a luminance value expected to be measured from a test chart that is displayed and converted by an LUT is displayed on a display unit in association with the test chart.

JP 2006-167096 A JP 2005-131264 A

  However, in the above-mentioned Patent Document 1, the monitor that is the target of brightness adjustment is a medical monitor, and it has not been considered to perform brightness adjustment for a non-medical monitor. Further, in Patent Document 2, calibration work is supported by converting a test chart into a display corresponding to a layout position and displaying the result, and the actual calibration work is performed by an operator. In a large-scale medical institution where there are many monitors including medical and non-medical uses, the time required for calibration of all the monitors is enormous.

The present invention has been made in view of the above-described problems, and its object is to reduce the burden of monitor calibration work in a monitor management system having a plurality of monitors and cope with aging. The present invention is to provide a monitor management system and a luminance information management device that can perform monitor adjustment .

In order to achieve the above-described object, the first invention is such that a plurality of monitors are directly connected to the luminance information management apparatus, or a plurality of monitors are indirectly connected to the luminance information management apparatus via a network or a computer. In the monitor management system, the brightness information management device collects monitor adjustment information including monitor type information, usage time information, and characteristic information related to monitor display quality adjustment from the monitor, or is provided from the monitor side. Monitor adjustment information collecting means for managing the stored information and storing it in the database, and for the unadjusted monitor, based on the monitor adjustment information stored in the database, the characteristics according to the monitor type and usage time of the unadjusted monitor a monitor adjustment means for monitoring adjustment by applying information, the use time information about said monitor By irradiation, a monitor management system characterized by comprising determining means for determining whether or not withstand the display of the medical image.

Further, the second invention is a luminance information management apparatus that is directly connected to a plurality of monitors or indirectly connected to a plurality of monitors via a network or a computer. Monitor adjustment information collecting means for collecting monitor adjustment information including usage time information and monitor display quality adjustment characteristic information and storing it in a database, and for an unadjusted monitor, the monitor stored in the database Based on the adjustment information, monitor adjustment means for adjusting the monitor by applying the characteristic information according to the monitor type and usage time of the unadjusted monitor, and by referring to the usage time information about the monitor, A luminance information management apparatus comprising: a determination unit that determines whether or not the display can withstand .

According to the present invention, in a monitor management system having a plurality of monitors, it is possible to provide a monitor management system and a luminance information management apparatus capable of reducing the burden of monitor calibration work and performing monitor adjustment corresponding to secular change. .

Overall configuration diagram of the monitor management system 1 The block diagram which shows the hardware constitutions of the luminance information management apparatus 2 An example of the monitor adjustment information table 8 stored in the database 25 of the luminance information management device 2 Block diagram showing the hardware configuration of the image viewer terminal 3 and the report terminal 4 The flowchart explaining the flow of the monitor management process which the luminance information management apparatus 2 performs Graph showing various luminance conversion characteristics A flowchart for explaining details of processing for calculating optimum monitor adjustment information for an unadjusted monitor The flowchart explaining the determination process whether to endure the display of a medical image An example of a warning screen on a monitor that cannot withstand the display of medical images

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the overall configuration of the monitor management system 1 of the present invention will be described with reference to FIG.
As shown in FIG. 1, a monitor management system 1 includes a brightness information management device 2 that performs monitor management, an image viewer terminal 3 for displaying medical images, a report terminal 4 for displaying medical information such as an electronic medical record, Various modalities (medical image diagnostic apparatuses) 5 a, 5 b,... Are connected to each other via a network 6.

  The modalities 5a, 5b,... Are used to capture and generate medical images such as an X-ray diagnostic apparatus, an X-ray CT apparatus, an MRI apparatus, a mammography, an ultrasonic diagnostic apparatus, a PET apparatus, a SPECT apparatus, and an endoscope. The image data generated by these modalities 5 a, 5 b,... Is stored in the image database of the luminance information management device 2. The operation consoles of these modalities 5a, 5b,... Are each provided with a monitor, and these monitors are also managed by the luminance information management device 2.

  The network 6 is laid in a medical facility, and a LAN (Local Area Network) that connects each facility for communication, a WAN (Wide Area Network) that connects and connects facilities in a plurality of medical facilities, a communication line such as a telephone line and an optical cable, etc. And various networks according to the scale of the facility, such as the Internet using providers and the like.

The luminance information management device 2 manages the entire monitor management system 1 and has a function of performing display quality management for all devices and monitor of the terminal of the monitor management system 1. In the present embodiment, as a representative example of display quality management, management of luminance of each monitor is handled. Details of the monitor management function of the luminance information management apparatus 2 will be described later.
The display quality management target in the monitor management system 1 may include various feature quantities (characteristic information) such as contrast, artifacts, brightness non-uniformity, and chromaticity in addition to the brightness.

  The image viewer terminal 3 and the report terminal 4 are terminals such as computers used by doctors and image interpretation doctors. In this embodiment, the image viewer terminal 3 includes a medical monitor, and the report terminal 4 is a general computer or the like. A non-medical monitor such as the monitor used in The image viewer terminal 3 and the report terminal 4 may be installed in the same room (examination room or the like), or may be installed in separate rooms.

  FIG. 2 shows a hardware configuration of the luminance information management apparatus 2. The luminance information management device 2 includes a control device 21, a monitor 22, an input unit 23, a storage device 24, a database 25, and a communication I / F (interface) 26, and these units are connected by a bus 27.

  The control device 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU calls and executes a program stored in a storage device, a ROM, a recording medium, or the like to a work memory area on the RAM, and drives and controls each device connected via the bus 27. The ROM is a non-volatile memory, and permanently stores a boot program of the computer (luminance information management device 2), a program such as BIOS, data, and the like. The RAM is a volatile memory, and temporarily holds a program, data, and the like loaded from a storage device, a ROM, a recording medium, and the like, and includes a work area used by the control device 21 to perform various processes.

The monitor 22 includes a CRT monitor, a display device such as a liquid crystal panel, and a logic circuit (a video adapter or the like) for realizing a video function of the computer in cooperation with the display device.
The monitor management system 1 of the present embodiment is broadly divided into medical monitors and non-medical monitors. In the case of a medical monitor, a high-definition display device suitable for displaying a medical image is shown, for example, as shown in “Guidelines for quality control of a medical image display monitor” issued by JIRA (Japan Imaging System Association) A device capable of realizing a predetermined display quality. This medical monitor needs to be periodically subjected to display quality control calibration using a built-in or externally connected photo sensor or visual inspection. On the other hand, the term “non-medical monitor” refers to a general monitor that does not have the function of a medical monitor. The non-medical monitor includes a monitor of a computer (report terminal 3) used for general office work and a television screen. It is. When there is no need to distinguish between a medical monitor and a non-medical monitor, it is simply called a monitor. The monitor 22 of the luminance information management device 2 may be a medical monitor or a non-medical monitor.

  The input unit 23 is, for example, a keyboard, a pointing device such as a mouse, or an input device such as a numeric keypad. The input unit 23 inputs a signal input by an operator from these input devices to the control device 21.

  The storage device 24 is an HDD (hard disk drive), and stores a program executed by the control device 21, data necessary for program execution, and the like. As for the program, a control program corresponding to the OS and an application program corresponding to a monitor management process (see FIG. 5) described later are stored. Each of these program codes is read by the control device 21 as necessary, transferred to the RAM, read by the CPU, and executed as various means. The storage device 24 includes a drive device for various recording media (CD, DVD, memory card, IC card, etc.).

  The communication I / F 26 includes a communication control device, a communication port, and the like, and is a communication interface that mediates communication between the luminance information management device 2 and the network 6, and is connected to another computer (image viewer) via the network 6. Control of communication with the terminal 3, the report terminal 4) and the modalities 5a, 5b,. The bus 27 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  In addition to the image data collected from each modality 5a, 5b,..., The database 25 stores adjustment information for each monitor collected from each modality 5a, 5b,. And memorize it. Specifically, the database 25 stores a monitor adjustment information table 8 and a plurality of LUTs (Look Up Tables) 9 used for monitor adjustment.

  As shown in FIG. 3, the monitor adjustment information table 8 includes an identification number (monitor ID) 81 of each monitor, a monitor type 82, a usage time 83, a flag 84 indicating whether adjusted or not adjusted, The link destination 85 of the LUT 9 applied at the time of monitor adjustment is stored.

  Here, the LUT 9 is a table of characteristic information of feature quantities (luminance, etc.) to be monitored, and for example, if gamma correction is performed to adjust brightness (luminance), each gamma value is not corrected. Are stored in correspondence with the number of gradations (for example, 256). Since each monitor is adjusted to a different luminance characteristic curve (see FIG. 6) for each usage time and for each monitor type, each LUT 9 corresponding to the luminance characteristic curve applied to each adjusted monitor is stored in the database 25. Will be.

  The usage time of the monitor is, for example, the accumulated power-on time, and the monitor or the control device of the terminal holds the timekeeping information. However, when the usage time is not monitored by the monitor, If the usage time cannot be obtained directly from the terminal, the estimated usage time according to the installation location of the monitor may be used as the monitor usage time. In this case, for example, the usage time per unit period is determined as follows: a hours per day for the examination room monitor, b hours per day for the reading room monitor, and c hours per day for the office room monitor. The total usage time accumulated from the date of introduction of the monitor is estimated. In addition, the monitor usage time may be acquired from manual input by an operator, acquisition of information from a control device in the monitor, dedicated software installed in a personal computer (PC) connected to the monitor, or the like.

FIG. 4 is a diagram for explaining a hardware configuration of a computer having the function of the image viewer terminal 3 or the report terminal 4. The image viewer terminal 3 includes a control device 31, a monitor 32, an input unit 33, a storage device 34, and a communication I / F (interface) 36, and these units are connected by a bus 37. Similarly, the report terminal 4 includes a control device 41, a monitor 42, an input unit 43, a storage device 44, and a communication I / F (interface) 46, and these units are connected by a bus 47.
Each of the image viewer terminal 3 and the report terminal 4 includes one or a plurality of monitors.

  The control device 31 (or 41) includes a CPU, ROM, RAM, and the like. The CPU calls and executes a program stored in a storage device, a ROM, a recording medium, or the like to a work memory area on the RAM, and drives and controls each device connected via a bus. The ROM is a non-volatile memory and permanently holds a computer boot program, a program such as BIOS, data, and the like. The RAM is a volatile memory, and temporarily holds a program, data, and the like loaded from a storage device, a ROM, a recording medium, and the like, and includes a work area used by the control device for performing various processes.

The monitor 32 (or 42) includes a CRT monitor, a display device such as a liquid crystal panel, and a logic circuit (video adapter or the like) for realizing the video function of the computer in cooperation with the display device. The monitor 32 of the image viewer terminal 3 is a medical monitor, and the monitor 42 of the report terminal 4 is a non-medical monitor.
The monitor 32 includes a monitor ID that is identification information unique to the monitor, model information, and time measuring means for measuring the usage time. It should be noted that the monitor ID and type information may be stored in the storage device 34 (or 44) of each terminal 3 or 4, and a timer may be provided separately from the monitor.
The monitor information (monitor ID, model information, usage time information) is read out and managed in the monitor management process executed by the luminance information management apparatus 2.

  The input unit 33 (or 43) is, for example, a keyboard, a pointing device such as a mouse, or an input device such as a numeric keypad, and inputs a signal input from these input devices to the control device 31 (or 41).

  The storage device 34 (or 44) is an HDD (hard disk drive), and stores a program executed by the control device 31 (or 41), data necessary for program execution, and the like. As for the program, a control program corresponding to the OS and an application program necessary for each terminal are stored. Each of these program codes is read by the control device 31 (or 41) as necessary, transferred to the RAM, read by the CPU, and executed as various means. The storage device 34 (or 44) includes a drive device for various recording media (CD, DVD, memory card, IC card, etc.).

  The communication I / F 36 (or 46) has a communication control device, a communication port, and the like, and is a communication interface that mediates communication between the computer (the image viewer terminal 3 or the report terminal 4) and the network 6. Thus, communication control with the luminance information management apparatus 2 and other terminals is performed. The bus 37 (or 47) is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  Next, monitor management processing in the monitor management system 1 will be described with reference to FIGS. The brightness information management device 2 performs the monitor management process shown in FIG. 5 periodically, for example, every month.

As shown in the flowchart of FIG. 5, first, the control device 21 of the luminance information management device 2 is connected to the monitor management system 1 by a certain terminal or device (modalities 5a, 5b,..., Image viewer terminal 3, The computer name and monitor information (monitor ID, model, usage time) are acquired from the report terminal 4 (step S11).
The control device 21 of the luminance information management device 2 refers to the monitor adjustment information table 8 in the database 25 for the monitor information acquired in step S11, and determines whether or not this monitor has been adjusted (step S12).

If it is not adjusted (step S12; unadjusted), the control device 21 of the luminance information management device 2 displays a screen for inquiring whether or not to perform monitor adjustment on the monitor 22. When an operation for adjusting the monitor is performed by the administrator on this inquiry screen (step S13; Yes), a test pattern image used for display quality management calibration is displayed on the corresponding monitor 32 (or 42). (Step S14). As the test pattern image, for example, a test pattern image or the like posted in “Guidelines on Quality Control of Medical Image Display Monitor” issued by JIRA (Japan Image Medical System Industry Association) is used.
Further, the control device 22 of the luminance information management device 2 provides a LUT curve adjustment screen to the corresponding monitor 32 (or 42). The operator of the monitor 32 (or 42) operates the LUT curve adjustment screen to perform an adjustment operation that makes it easy to see the test pattern image (step S15).

  FIG. 6 is an example of an LUT curve for luminance adjustment, where the horizontal axis of each graph represents input luminance and the vertical axis represents output luminance. When it is desired to emphasize low luminance, the LUT curve shown in FIG. 6A is changed. When high luminance is emphasized, the LUT curve shown in FIG. 6B is changed. When it is desired to enhance the medium luminance, the LUT curve shown in FIG. 6C is changed. When a specific luminance is emphasized, the LUT curve shown in FIG. 6D is drawn. Change as follows.

  When the LUT curve is adjusted to an appropriate one for the corresponding monitor 32 (or 42), the image viewer terminal 3 or the report terminal 4 transmits the LUT applied to the current adjustment to the luminance information management device 2. The brightness information management device 2 gives names different from other LUTs such as “LUT_A”, “LUT_B”,... To the LUT 9 received from the image viewer terminal 3 or the report terminal 4, and the database 25. To remember. Further, the monitor information (monitor ID 81, monitor type 82, use time 83, adjusted 84, link destination (name, etc.) to the LUT 9) of the monitor is additionally registered as a new record in the monitor adjustment information table 8 (step S16). .

On the corresponding monitor 32 (or 42), a test pattern image to which the LUT 9 adjusted in step S15 is applied is displayed (step S17).
Through the processing in steps S14 to S17, the same LUT adjustment as that in the prior art is performed, and monitor adjustment information is registered in the database 25.

  For an unadjusted monitor (step S12; unadjusted), when an operation for not performing monitor adjustment is performed (step S13; No), the control device 21 of the luminance information management device 2 stores the data in the database 25. The optimum LUT for the monitor 32 (or 42) that is currently being processed is calculated from the monitor adjustment information that is being processed (step S18).

The optimum LUT calculation process in step S18 will be described using the flowchart of FIG.
As shown in FIG. 7, the control device 21 of the brightness information management device 2 has been adjusted so that the monitor 32 (or 42) has the same model and usage time within a certain error range from the monitor adjustment information table 8 of the database 25. The monitor is searched (step S181). Note that the constant error range of the usage time can be changed by adjusting a threshold value set in advance by the operator or the system. If there is information on an adjusted monitor that has the same type and usage time within a certain error range (step S182; present), the LUT 9 applied to that monitor is read (step S183), and the unadjusted monitor 32 (or 42) (To step S17 in FIG. 5). On the other hand, if there is no adjusted monitor that has the same model and usage time within a certain error range as the corresponding monitor 32 (or 42) (step S182; no), it is used from a plurality of monitor adjustment information of adjusted monitors of the same type. The LUT corresponding to the time is estimated (step S184) and applied to the corresponding monitor 32 (or 42) (to step S17 in FIG. 5).

  For example, when the LUT to be applied to the unadjusted monitor (monitor ID “0005”) is searched from the monitor adjustment information table 8 in FIG. 3, there is no information on the adjusted monitor that has the same model and usage time within a certain error range. Therefore, the LUT corresponding to the usage time is estimated using the same type of monitor information (monitor ID “0001”, “0002”, “0003”). In this example, the usage time of the unadjusted monitor is “500 h”, whereas the usage time of the adjusted monitor includes information of “100 h”, “1000 h”, and “10000 h”. The control device 21 estimates the optimum LUT by performing interpolation processing or the like from the secular change of “LUT_A”, “LUT_B”, and “LUT_C” applied to the adjusted monitor, and the corresponding unadjusted monitor 32 (or 42).

  The control device 21 of the luminance information management device 2 registers the calculated LUT in the database 25 and registers monitor adjustment information for the unadjusted monitor in the monitor adjustment information table 8. At this time, the adjusted flag 84 of the monitor adjustment information table 8 is set to “adjusted”.

  By performing the process of step S18, it is possible to perform the same image quality adjustment on the unadjusted monitor based on the data at the time of calibration of the adjusted monitor without performing the calibration work using the test pattern as in the past. It becomes.

  On the other hand, when the monitor has been adjusted in step S12 of FIG. 5 (step S12; adjusted), the process proceeds to step S19. In step S19, the control device 21 of the luminance information management device 2 determines whether or not the monitor has passed a predetermined time (for example, several months or more) since the previous adjustment (manual calibration). If the predetermined time has not elapsed (step S19; No), it is assumed that there is no significant deterioration in image quality, the LUT applied at the previous adjustment is acquired from the database 25 (step S20), and the corresponding monitor 32 (or 42) (to step S17). When a predetermined time (for example, several months or more) has passed since the previous adjustment (manual calibration) (step S19; Yes), the process proceeds to step S13, and a screen for inquiring whether or not to perform monitor adjustment is displayed. Display.

  The luminance information management device 2 repeatedly executes the series of processing from step S11 to step S20 for all the monitors of the monitor management system 1, and ends the monitor management processing when the processing is completed for all the monitors.

  In addition to the monitor management process shown in FIG. 5, the luminance information management device 2 further determines whether or not the total use time of the monitor has passed a predetermined time, and is too large to withstand the use of medical images. Warning information may be presented for a monitor that has reached a certain usage time.

8 to 9 are diagrams illustrating the warning display process.
The control device 21 of the luminance information management device 2 executes the warning display process shown in FIG. 8 after acquiring the usage time of each monitor in step S11 of FIG. In the warning execution process, the control device 21 determines whether or not the acquired usage time information has exceeded a predetermined time that cannot withstand the predetermined usage (step S21). S21: Yes), the warning message 7 as shown in FIG. 9 is displayed on the corresponding monitor (step S22), and the monitor management process is terminated. If the acquired usage time is within the time to withstand the display of the medical image (step S21; Yes), the process proceeds to step S12 in FIG.

  For example, as shown in Fig. 9, the warning message 7 indicates that “the usage time of the monitor“ XXXX ”has exceeded *** hours. The medical image may not be displayed properly. ".

  As described above, according to the monitor management system 1 of the present embodiment, the luminance information management device 2 includes the image viewer terminal 3, the report terminal 4, the modalities 5a, 5b,. Model information and usage time information are acquired for the monitor, and the LUT applied to the adjustment is acquired from the adjusted monitor and registered in the database 25. When the brightness information management device 2 detects an unadjusted monitor, the brightness information management device 2 searches the database 25 for an appropriate LUT based on the model information and usage time information of the monitor, calculates the optimum LUT, and calculates the unadjusted monitor. Applies to monitors.

Therefore, even for a non-medical monitor that has not been subjected to brightness adjustment of the monitor, for example, adjustment can be performed with reference to appropriate LUT information from the adjusted monitor, so that appropriate brightness (image quality) can be easily achieved. It can be adjusted and used as a monitor that can withstand reference to medical images. In particular, in the case of a large-scale monitor management system 1 having a large number of monitors, it is not necessary to perform calibration work for all monitors, and the work time can be shortened. Since the LUT corresponding to the monitor type and usage time is applied to the unadjusted monitor, it is possible to perform monitor adjustment corresponding to characteristic aging for each monitor type (model).
In addition, the medical monitor is normally calibrated regularly, but in addition to the regular periodic calibration, the monitor management process (FIG. 5) of the present embodiment is performed more frequently. For example, the image quality of the monitor is always kept good, and stable interpretation can be performed.

  In addition, the monitor management system 1 monitors the cumulative usage time of the monitor, and for a monitor that is significantly deteriorated due to excessive usage time, a warning that the display quality is degraded and cannot be used is presented. Alternatively, the interpreting physician can accurately grasp the monitor replacement time and the like.

  Since the brightness of each monitor's usage environment affects the brightness adjustment, the brightness level of the specification environment (for example, a monitor in the reading room has little external light, but a monitor in the office room has external light. May be a management target of the monitor management system 1, and in addition to the monitor type and usage time, an LUT corresponding to the brightness level of the usage environment may be accumulated and referred to when adjusting the monitor. .

  The preferred embodiment of the monitor management system according to the present invention has been described above, but the present invention is not limited to the above-described embodiment. In addition, it is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. It is understood.

1 .... Monitor management system 2 .... Luminance information management device 21 ... Control device 22 .... Monitor 25 .... Database 3. ······ Image viewer terminal 4 ··································· Report terminal 31, 41 ... Control device 32, 42 ... Monitor 5a, 5b ... Modality 7 .... Warning message 8 ..... Monitor adjustment information table 9 .... LUT

Claims (4)

In a monitor management system in which a plurality of monitors are directly connected to the luminance information management apparatus, or a plurality of monitors are indirectly connected to the luminance information management apparatus via a network or a computer,
The brightness information management device includes:
Monitor adjustment information collected from the monitor, including monitor type information, usage time information, and characteristic information related to monitor display quality adjustment, or information provided from the monitor is managed and stored in a database Collection means;
Monitor adjustment means for performing monitor adjustment by applying the characteristic information according to the monitor type and usage time of the unadjusted monitor based on the monitor adjustment information stored in the database,
A determination means for determining whether or not the display of the medical image is tolerated by referring to the use time information about the monitor;
Monitor management system comprising: a. The luminance information management device further includes:
Warning presenting means for presenting warning information for a monitor determined by the determining means to be incapable of displaying a medical image;
The monitor management system according to claim 1, further comprising: The monitor adjusting means includes
Of the monitor adjustment information stored in the database, it is determined whether there is information on an adjusted monitor that is the same type as that of the unadjusted monitor and whose usage time is within a certain error range based on the specifications of the unadjusted monitor. If there is monitor adjustment information in which the model is used and the usage time is within a certain error range, the characteristic information of the monitor adjustment information is applied to the unadjusted monitor, and the monitor adjustment is performed so that the same model and the usage time is within a certain error range. If there is no information, the characteristic information corresponding to the usage time of the unadjusted monitor is estimated based on the monitor adjustment information of the adjusted monitor of the same type as the unadjusted monitor, and applied to the unadjusted monitor. The monitor management system according to claim 1 , wherein the monitor management system is characterized by the following. A luminance information management apparatus that is directly connected to a plurality of monitors or indirectly connected to a plurality of monitors via a network or a computer,
Monitor adjustment information collecting means for collecting monitor adjustment information including monitor type information, usage time information, and characteristic information related to monitor display quality adjustment from the monitor, and storing the information in a database;
Monitor adjustment means for performing monitor adjustment by applying the characteristic information according to the monitor type and usage time of the unadjusted monitor based on the monitor adjustment information stored in the database,
A determination means for determining whether or not the display of the medical image is tolerated by referring to the use time information about the monitor;
A luminance information management apparatus comprising:

Images