Dynamic image analysis device and program

Abstract

To enable diagnosis materials of a doctor to be reinforced using dynamic images acquired from inspection so as to shorten the time till definite diagnosis and reduce the burden on a person in charge of medical care and a patient.SOLUTION: A dynamic image analysis device comprises: a first acquisition unit 212 for acquiring a dynamic image and a first analysis order which is order information on first dynamic analysis carried out upon the dynamic image; an analysis unit for performing first dynamic analysis upon the acquired dynamic image on the basis of the first analysis order; an output unit for outputting a result of the analysis carried out by the analysis unit; and a second acquisition unit for acquiring a second analysis order which is order information on second dynamic analysis carried out upon the dynamic image and different from the first dynamic analysis. When the second analysis order is acquired from the second acquisition unit, the analysis unit performs the second dynamic analysis upon the dynamic image on the basis of the second analysis order.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a dynamic image analysis device and a program. [Background technology]

[0002] Traditionally, workflows (clinical procedures) have been established to perform various tests and preparatory procedures based on doctor orders. In the initial stage (e.g., the first visit), a medical procedure involves conducting a screening test to gather general information. Once a disease trend is identified, a new medical procedure is started to perform additional tests according to the disease trend. However, medical procedures have difficulty easily adapting to situations where a doctor's diagnosis is subject to change, and dynamically adapting to changes in medical procedures places a heavy burden on both the medical professionals and patients involved.

[0003] As an example of technology related to medical treatment flow, Patent Document 1 describes a method in which, in the workflow leading up to a definitive diagnosis, information that a doctor (first user) has noted but rejected in a previous step is saved, and if a case that a second user is referring to has previously been rejected by the first user, a display that makes it clear that the case has been rejected is displayed, thereby reducing the waste of inquiring about information that has already been rejected in later steps or repeating the workflow related to that information.

[0004] Furthermore, for example, Patent Document 2 describes how workflow steps on a chronological display screen of medical information are dynamically assigned labels containing the order of the workflow steps, making it easier to understand the flow of medical treatment when the workflow is long or complicated.

[0005] Furthermore, for example, Patent Document 3 describes a diagnostic support device that includes a reception unit that receives an instruction to associate first information and second information specified or input regarding a patient's medical information, and an association processing unit that creates one piece of set information by combining at least two pieces of information, the first information and the second information, based on the association instruction, and further groups one or more pieces of set information by clinical judgment unit to create an information group, thereby making it possible to easily grasp the causal relationships among multiple pieces of medical information.

[0006] Furthermore, for example, Patent Document 4 describes an acquisition unit that acquires candidate lesions, a search unit that searches past data for related test items that are related to the test items in the test order before performing an examination according to the candidate lesion, and, if the search results by the search unit include the related test items, acquires test results that were previously collected by testing the related test items, processes the acquired test results into a form that matches the test purpose of the test order, and outputs the processed results. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-230650 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-3658 [Patent Document 3] Japanese Patent Application Laid-Open No. 2015-197738 [Patent Document 4] Japanese Patent Application Publication No. 2020-181289 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the technologies described in Patent Documents 1 to 4 are technologies that reinforce and supplement the entire existing medical flow with a system, and even if these technologies make the medical flow easier to understand and reduce waste and omissions in the medical flow, the disease information obtained through the medical flow for patients who are seen for the first time or for whom a diagnosis cannot be made is full of what is known, what is unknown, and concerns that can be inferred each time an examination, etc. is performed. Therefore, it is unavoidable to repeat the medical flow, it takes time to reach a definitive diagnosis, and it is difficult to alleviate the burden on medical professionals involved with each patient and the burden on patients who are forced to continue medical treatment because a definitive diagnosis cannot be made. Furthermore, even if the medical treatment flow can be dynamically rearranged depending on the examination situation, it cannot be changed until the examination situation changes.

[0009] The object of the present invention has been made in consideration of the above-mentioned problems, and aims to enable doctors to supplement their diagnostic materials using dynamic images already acquired during an examination, thereby shortening the time until a definitive diagnosis is made and reducing the burden on medical professionals and patients. [Means for solving the problem]

[0010] In order to solve the above problems, the dynamic image analyzer of the present invention comprises: A dynamic image analysis device that analyzes dynamic images obtained by dynamic photography in which radiation is sequentially irradiated onto a subject, a first acquisition unit that acquires the dynamic image and a first analysis order that is order information for a first dynamic analysis to be performed on the dynamic image; an analysis unit that performs the first dynamic analysis on the dynamic image based on the first analysis order; The analysis unit First Kinetic Analysis Analysis results On the display device an output unit that outputs the signal; a second acquisition unit that acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis, to be performed on the dynamic image; Equipped with the second acquisition unit displays an input screen on the display device on which the analysis result of the first dynamic analysis is displayed, for inputting the second analysis order or selecting from a plurality of options, and acquires the second analysis order based on the input or selection from the input screen; The analysis unit is characterized in that, when the second analysis order is acquired by the second acquisition unit, it performs the second dynamic analysis on the dynamic image based on the second analysis order.

[0011] The program of the present invention also includes: Computer, a first acquisition unit that acquires dynamic images obtained by dynamic imaging in which radiation is sequentially irradiated onto a subject, and a first analysis order that is order information for a first dynamic analysis to be performed on the dynamic images; an analysis unit that performs the first dynamic analysis on the dynamic image based on the first analysis order; The analysis unit First Kinetic Analysis Analysis results On the display device an output unit that outputs the signal; a second acquisition unit that acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis, to be performed on the dynamic image; It functions as the second acquisition unit displays an input screen on the display device on which the analysis result of the first dynamic analysis is displayed, for inputting the second analysis order or selecting from a plurality of options, and acquires the second analysis order based on the input or selection from the input screen; The analysis unit is characterized in that, when the second analysis order is acquired by the second acquisition unit, it performs the second dynamic analysis on the dynamic image based on the second analysis order. [Effects of the Invention]

[0012] According to the present invention, it is possible to supplement a doctor's diagnostic information using dynamic images already acquired during an examination, thereby shortening the time until a definitive diagnosis is made and reducing the burden on medical professionals and patients. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a diagram illustrating an example of the overall configuration of a dynamic analysis system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of the dynamic image analysis device of FIG. 1. [Figure 3] 3 is a block diagram showing the detailed functional configuration of the control unit in FIG. 2. FIG. [Figure 4] FIG. 1 is a diagram for explaining an example of a medical treatment flow. [Figure 5] 3 is a flowchart showing the flow of analysis control processing executed by the control unit in FIG. 2. [Figure 6] FIG. 10 is a diagram showing an example of a viewer screen on which the analysis results of the first dynamic analysis are displayed. [Figure 7] FIG. 10 shows examples of multiple dynamic analyses that can be performed from dynamic images. [Figure 8] FIG. 10 is a diagram illustrating an example of an order input screen. [Figure 9] FIG. 10 is a diagram showing an example of a viewer screen on which the analysis results of the second dynamic analysis are displayed. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable for implementing the present invention. Therefore, the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

[0015] [Configuration of dynamic analysis system 100] First, the configuration of the embodiment of the present invention will be described. FIG. 1 shows the system configuration of a dynamic analysis system 100 according to this embodiment. 1, the dynamic analysis system 100 includes a radiographic device 1, a dynamic image analysis device 2, an image display device 3, an image management device 4, a RIS (Radiology Information System) 5, and an HIS (Hospital Information System) 6. These devices 1 to 6 are connected to each other via a communication network N constructed within a medical facility, such as a LAN (Local Area Network), so that they can transmit and receive data to and from each other. The number of each device is not particularly limited.

[0016] The radiographic imaging device 1 is configured with a radiation generator and a radiation detector, and is an apparatus for generating dynamic images by dynamic imaging in which radiation is sequentially irradiated onto a subject. For example, the radiographic imaging device 1 repeatedly irradiates the subject with pulsed radiation such as X-rays at predetermined time intervals (pulse irradiation) to obtain multiple images showing the dynamic state of the subject. In the present invention, "sequentially irradiating radiation" includes continuous irradiation in which radiation is continuously irradiated, and pulse irradiation in which radiation is irradiated intermittently or not. A series of images obtained by dynamic imaging is called a dynamic image. Furthermore, each of the multiple images that make up a dynamic image is called a frame image. Here, dynamic photography includes video photography but does not include taking still images while displaying a video. Dynamic images include video but do not include images obtained by taking still images while displaying a video. The radiation imaging apparatus 1 is also capable of irradiating a subject with radiation and generating a radiation still image.

[0017] The radiographic imaging apparatus 1 is a device that complies with the DICOM (Digital Imaging and Communications in Medicine) standard. It can externally input various types of information (DICOM information, hereinafter referred to as "attached information") related to the generated radiographic images (dynamic and still images) and can also automatically generate the information based on radiography order information transmitted from the RIS 5 or HIS 6. The attached information includes, for example, patient information (patient ID, patient name, sex, date of birth), examination information (examination ID, examination date, examination time, as well as imaging region, imaging direction, modality type, number of frames, frame rate, medical department, name of diagnosing physician, classification as still image / dynamic image, and type of dynamic examination (e.g., chest screening examination, ventilation signal examination, blood flow signal examination, etc.). The radiographic imaging apparatus 1 adds the attached information and a UID (Unique ID) for identifying the image as header information to the generated radiographic images and transmits them to the dynamic image analysis apparatus 2 and the image management apparatus 4 via the communication network N.

[0018] The dynamic image analyzer 2 is a workstation that performs dynamic analysis on the dynamic images received from the radiographic apparatus 1 to generate analysis results and outputs the generated analysis results.

[0019] As shown in FIG. 2, the dynamic image analyzer 2 comprises a control unit 21, a storage unit 22, a communication unit 23, an operation unit 24, a display unit 25, etc., and each unit is connected by a bus 26.

[0020] The control unit 21 includes a CPU (Central Processing Unit), a RAM (Random Access Memory The CPU of the control unit 21 reads out the system program and various processing programs stored in the storage unit 22, expands them in the RAM, and performs centralized control of the operation of the dynamic image analysis device 2 according to the expanded programs.

[0021] In this embodiment, the control unit 21 functions as a data control unit 211, a first acquisition unit 212, an analysis unit 213, an output unit 214, and a second acquisition unit 215, as shown in FIG. 3, in cooperation with a program stored in the memory unit 22.

[0022] The data control unit 211 controls the flow of data between the functions of the control unit 21 by executing an analysis control process (see FIG. 5).

[0023] The first acquisition unit 212 acquires the dynamic image transmitted from the radiation imaging device 1 via the communication unit 23, and acquires a first analysis order, which is order information for a dynamic analysis (hereinafter referred to as a first dynamic analysis) to be performed on the dynamic image. For example, the first acquisition unit 212 determines the first dynamic analysis to be performed on the dynamic image based on the type of dynamic examination included in the supplementary information of the acquired dynamic image, and acquires the first analysis order by generating order information for the determined first dynamic analysis.

[0024] Based on the first analysis order, the analysis unit 213 performs a first dynamic analysis on the dynamic image acquired by the first acquisition unit 212. Furthermore, when the second acquisition unit 215 acquires a second analysis order, which is order information for a dynamic analysis (hereinafter referred to as a second dynamic analysis) different from the first dynamic analysis to be performed on the dynamic image acquired by the first acquisition unit 212, the analysis unit 213 performs the second dynamic analysis on the dynamic image acquired by the first acquisition unit 212 based on the second analysis order.

[0025] The output unit 214 outputs the analysis results from the analysis unit 213 and the dynamic image that is the basis of the analysis. For example, the output unit 214 outputs the analysis results by the analysis unit 213 and the dynamic image that is the basis of the analysis to the storage unit 22, and stores them in the storage unit 22 in association with the accompanying information. Furthermore, the output unit 214 outputs the analysis results by the analysis unit 213 to a display device (the display unit 25 or the image display device 3) or displays them via the image management device 4. The dynamic images used in the dynamic analysis may also be displayed together. In this embodiment, the output unit 214 creates a web screen (viewer screens 251 and 253, described later) that can be viewed with a web browser for the analysis results by the analysis unit 213, and outputs the results to a display device equipped with a web browser in response to a request from the web browser equipped in a UI (User Interface) possessed by the dynamic image analysis device 2, the image display device 3, or the image management device 4.

[0026] The second acquisition unit 215 acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis to be performed on the dynamic image acquired by the first acquisition unit 212. In this embodiment, the second acquisition unit 215 creates a web screen (an order input screen 252, described later) for inputting the second analysis order or selecting from multiple options, and displays it on the display device in response to a request from a web browser installed in the dynamic image analyzer 2 or the image display device 3, and acquires the second analysis order based on the input from the order input screen 252.

[0027] The storage unit 22 is configured with a non-volatile semiconductor memory, a hard disk, etc. The storage unit 22 stores various programs executable by the control unit 21, parameters required for executing processing by the programs, data such as processing results, etc. These various programs are stored in the form of readable program code, and the control unit 21 sequentially executes operations in accordance with the program code. For example, the storage unit 22 stores a plurality of types of dynamic analysis programs to be executed by the analysis unit 213 . Furthermore, the storage unit 22 stores the dynamic image and its analysis results in association with patient information and examination information (such as the type of dynamic examination) included in the supplementary information of the dynamic image.

[0028] The communication unit 23 includes a LAN adapter and the like, and controls data transmission and reception with external devices connected to the communication network N.

[0029] The operation unit 24 is configured with a keyboard having cursor keys, numeric input keys, various function keys, etc., and a pointing device such as a mouse, and outputs instruction signals input by the user through key operations on the keyboard or mouse operations to the control unit 21. The operation unit 24 may also be provided with a touch panel on the display screen of the display unit 25, and in this case, outputs instruction signals input via the touch panel to the control unit 21.

[0030] The display unit 25 is configured with a monitor such as an LCD (Liquid Crystal Display), and performs various displays according to instructions of a display signal input from the control unit 21.

[0031] The image display device 3 is a device that allows doctors and other personnel to display and view medical images such as dynamic images and their analysis results. In this embodiment, the image display device 3 has a web browser and displays viewer screens 251 and 253 for displaying the analysis results of dynamic images output from the dynamic image analyzer 2, an order input screen 252, and the like. The image display device 3 may be a terminal device dedicated to displaying the results of dynamic analysis (a client terminal of the dynamic image analyzer 2), a terminal device for electronic medical records, or a client terminal (image interpretation terminal) of a PACS (Picture Archiving and Communication System), as long as it is equipped with a web browser. It may also be a general-purpose terminal device such as a PC (Personal Computer), a tablet terminal, or a smartphone.

[0032] The image management device 4 is, for example, a PACS server, and has an image database. It stores medical images, including captured dynamic images, and their analysis results in the image database in association with patient information and examination information.

[0033] The RIS 5 and the HIS 6 generate, store, and save radiography order information, and transmit it to the radiation imaging apparatus 1. The RIS 5 and the HIS 6 may also store information on previously performed radiography and analysis, examination reports, etc., in association with patient information.

[0034] [About the treatment flow] A typical medical treatment flow in a conventional medical facility will now be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of a medical treatment flow in a hospital. For example, when a patient visits a general internal medicine department complaining of chest pain, the doctor will first conduct an initial consultation, including a medical history and physical examination. The doctor will then order blood tests, radiological tests, electrocardiograms, etc., using an electronic medical record terminal, and these tests will be performed on the patient. Generally, in the early stages, the disease trend is unclear, so screening tests are performed to gather general information. Once the test results are available, the doctor will review the results of the blood tests, radiological tests (including dynamic analysis tests), electrocardiograms, etc., and conduct a second consultation (medical history, etc.) with the patient. Based on the test results and the medical history, the doctor will then proceed to the next treatment flow and conduct additional tests as necessary, based on clinical guidelines. The doctor will then repeat the treatment flow and make repeated exclusion diagnoses until a definitive diagnosis is reached.

[0035] As can be seen in Figure 4, the medical treatment flow here requires manpower and time. For example, a doctor is responsible for the examination, a nurse for blood tests, a radiologist for X-ray tests, and a physiological technician for electrocardiograms. For doctors, information on diseases in the early stages or for patients with undiagnosed conditions is filled with what they know, what they don't know, and possible concerns each time they perform an examination. However, if the direction of treatment is unclear, the medical treatment flow will have to be repeated, which is a burden for doctors, medical professionals, and patients.

[0036] Therefore, in the dynamic image analysis device 2, for example, in the process of confirming the results of a radiological examination shown in Figure 4, it is possible to easily perform a dynamic analysis (second dynamic analysis) different from the dynamic analysis (first dynamic analysis) performed in the examination on the dynamic images already acquired in the examination, thereby reinforcing the doctor's diagnostic materials without performing a new examination (photography) and strengthening the direction of the medical treatment flow.

[0037] [Operation of dynamic image analyzer] The operation of the dynamic image analyzer 2 will now be described. 5 is a flowchart showing the flow of analysis control processing executed by the data control unit 211 of the dynamic image analyzer 2. The analysis control processing will be described below.

[0038] When a dynamic image is transmitted from the radiation imaging device 1, the first acquisition unit 212 acquires the dynamic image transmitted from the radiation imaging device 1 via the communication unit 23, and acquires a first analysis order based on information such as the type of dynamic examination contained in the supplementary information of the dynamic image, and outputs it to the data control unit 211 (step S1). The data control unit 211 outputs the dynamic image and the first analysis order acquired by the first acquisition unit 212 to the analysis unit 213, and causes the analysis unit 213 to perform a first dynamic analysis based on the first analysis order (step S2).

[0039] Here, for patients who have not been diagnosed, such as at their first visit, screening of the target area is almost always specified as the type of dynamic examination, and in most cases, the first dynamic analysis involves analyzing the movement of a specified structure (for example, if the imaging area is the chest, the diaphragm or lung field) as screening. Note that if the disease tendency is known in advance, an analysis other than screening may be performed as the first dynamic analysis.

[0040] When the first dynamic analysis in the analysis unit 213 is completed, the data control unit 211 causes the output unit 214 to output the analysis results of the first dynamic analysis (step S3). For example, the output unit 214 stores the analysis results of the first dynamic analysis in the storage unit 22 in association with additional information on the dynamic image that was the basis of the analysis. The output unit 214 also displays the analysis results of the first dynamic analysis by the analysis unit 213 on a display device such as the display unit 25 or the image display device 3. For example, the output unit 214 creates a viewer screen 251 that can be viewed on a web browser, and outputs and displays the analysis results of the first dynamic analysis by the analysis unit 213 on a display device such as the display unit 25 or the image display device 3 in response to access from the web browser. Alternatively, the output unit 214 outputs the viewer screen 251 to the image management device 4, and the viewer screen 251 is accessed from the web browser via a screen on which the image display device 3 acquires and displays images from the image management device 4, and the viewer screen 251 is displayed. That is, the doctor can view the analysis results of the first dynamic analysis by accessing the viewer screen 251 from the display device.

[0041] Fig. 6 is a diagram showing an example of the viewer screen 251. Fig. 6 shows the viewer screen 251 on which the analysis results are displayed when chest screening is performed as the first dynamic analysis. For example, in chest screening, the movement of chest structures (time-dependent changes in lung field area, time-dependent changes in diaphragm position), etc. are analyzed, and the analysis results are displayed on a viewer screen 251 as numerical values ​​251a and graphs 251b, as shown in Fig. 6. In addition, a dynamic image (or representative frame image) 251c on which annotations indicating the position of the diaphragm, etc., are superimposed is displayed. From the analysis results, a doctor can observe whether the diaphragm is moving actively, whether the change in lung field area is sufficient, whether the left and right lungs are linked, etc.

[0042] Here, dynamic images can be used for general analysis such as screening, as well as specialized analysis of specific disease trends. For example, when the dynamic images acquired by imaging are chest dynamic images, as shown in Figure 7, blood flow signal value analysis processing can be performed using frame images from a breath-holding period (frame images from a period with little diaphragm movement) among the chest dynamic images acquired by imaging. Furthermore, adhesion signal movement analysis, ventilation signal value analysis processing, etc. can be performed using frame images from a breathing period (frame images from a period with large diaphragm movement).

[0043] However, in the past, there was no way for doctors to easily order additional analyses without using the medical flow or manual intervention. If it was necessary to perform additional dynamic analysis, they had to issue imaging order information for a dynamic imaging examination, including information on the type of additional dynamic analysis, using RIS5, HIS6, radiography equipment 1, etc., to perform dynamic imaging, and then perform additional dynamic analysis on the obtained dynamic images, which was time-consuming and labor-intensive.

[0044] Therefore, the dynamic image analyzer 2 of this embodiment is provided with a configuration that allows a doctor to easily obtain an analysis order for additional dynamic analysis from the image display device 3 that the doctor is operating. For example, the viewer screen 251 displaying the analysis results of the first dynamic analysis has an add order button B1, and when the add order button B1 is pressed, the second acquisition unit 215 creates an order input screen 252 (input screen) for inputting (directly inputting) or selecting from multiple options a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis, and displays it on the display device on which the viewer screen 251 is displayed.

[0045] FIG. 8 is a diagram showing an example of the order input screen 252. FIG. 8 shows the order input screen 252 in a mode in which a second analysis order is selected from a plurality of options. As shown in FIG. 8, the order input screen 252 is provided with options 252a to 252e for a second dynamic analysis to be additionally performed and a registration button 252f. For example, the data control unit 211, as the extraction unit of the present invention, extracts types of dynamic analysis to be options for the second dynamic analysis based on information (e.g., the type of dynamic test) stored in the storage unit 22 and related to at least the dynamic analysis performed on the dynamic image acquired in step S1, and outputs the extracted types of dynamic analysis to the second acquisition unit 215. The second acquisition unit 215 creates the order input screen 252 including the extracted types of dynamic analysis as options, and displays the order input screen 252 on the display device on which the viewer screen 251 is displayed.

[0046] The dynamic analyses displayed as options may include all dynamic analyses that can be performed by the dynamic image analyzer 2 and have not yet been performed on the dynamic image (e.g., option 252b shown in FIG. 8 ), or may be narrowed down and displayed. For example, trends in previously performed dynamic analyses may be acquired from information about dynamic analyses performed on past images stored in the storage unit 22, and the dynamic analyses (recommended dynamic analyses) displayed as options may be narrowed down based on the acquired trends (e.g., option 252e shown in FIG. 8 ). Also, the history of previously performed analyses may be displayed as options (e.g., option 252d shown in FIG. 8 ). The dynamic analyses may also be narrowed down based on past examination reports (e.g., disease details, trends, follow-up information, etc.) or the imaging and analysis trends of other patients. Options for additional information (e.g., gender, age, BMI, etc.) may be displayed (e.g., option 252c shown in FIG. 8 ), and the selected additional information may be searched for analyses that are recommended or tend to be frequently analyzed, and the searched analysis may be automatically selected. If multiple analyses are found, they may be further displayed as options. The information required for narrowing down the dynamic analysis may be obtained from the information stored in the image management device 4, the RIS 5, or the HIS 6. Furthermore, for example, the options may display one dynamic analysis process as one order, or may display a preset of multiple dynamic analysis processes as one order, as shown in option 252a in Fig. 8. For example, a single order (set order) may be a preset of multiple dynamic analysis processes for screening or for each department, a preset of multiple dynamic analysis processes according to lesion trends such as blood flow, ventilation, and adhesion, or a preset of multiple dynamic analysis processes according to ROIs or regions such as the chest or abdomen.

[0047] In Figure 8, the dynamic analyses displayed as options are narrowed down using multiple conditions, and options are displayed for each condition, but the options may also be displayed by narrowing down using any one condition. Furthermore, based on the results of the first dynamic analysis, the display order of the options may be changed up or down depending on the degree of recommendation (those considered to have a higher priority may be moved to the top), or may be fixed depending on the user using the dynamic image analysis device 2 (for example, the display order of the options may be determined depending on whether the user is in charge of the respiratory system or the circulatory system). Additionally, the time until the analysis results of the second analysis order are displayed may be presented as a guideline together with supplementary information (to indicate how long the user will have to wait for the additional analysis).

[0048] When a dynamic analysis is selected from options 252a to 252e and registration button 252f is pressed, second acquisition unit 215 acquires the selected dynamic analysis as the second dynamic analysis to be performed on the dynamic image by generating a second analysis order, which is order information for the second dynamic analysis, and outputs it to data control unit 211. Note that multiple dynamic analyses may be selectable from the displayed options.

[0049] When the second analysis order is acquired by the second acquisition unit 215 (step S4; YES), the data control unit 211 outputs the dynamic image acquired by the first acquisition unit 212 in step S1 and the second analysis order to the analysis unit 213, and causes the analysis unit 213 to perform a second dynamic analysis on the dynamic image based on the second analysis order (step S5).

[0050] When the second dynamic analysis in the analysis unit 213 is completed, the data control unit 211 causes the output unit 214 to output the analysis results of the second dynamic analysis (step S6).

[0051] Fig. 9 is a diagram showing an example of a viewer screen 253 on which the second analysis result is displayed. Fig. 9 shows an example of the viewer screen 253 when adhesion signal movement analysis is performed as the second dynamic analysis. For example, on the viewer screen 253, a region with reduced movement in the lung field in the dynamic chest image, where the amount of movement is equal to or less than a predetermined threshold, is displayed on the dynamic chest image (or representative frame image) by being surrounded by a thick line.

[0052] In this way, the dynamic image analyzer 2 can easily obtain a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis to be performed on a dynamic image on which a first dynamic analysis has been performed, and perform the second dynamic analysis on the dynamic image. Specifically, the second analysis order can be easily obtained and the second dynamic analysis can be performed in response to an operation from the display device (display unit 25 or image display device 3) operated by the physician. Therefore, the second dynamic analysis different from the first dynamic analysis already performed can be easily performed on dynamic images already acquired in an examination without performing a new examination (imaging), thereby reinforcing the physician's diagnostic information and strengthening the direction of the medical treatment flow. As a result, the time until a definitive diagnosis can be shortened and the burden on medical professionals and patients can be reduced.

[0053] For example, if the results of the chest screening performed as the first dynamic analysis reveal no abnormalities, but there are concerns in the blood test, a blood flow signal value analysis process can be performed on the dynamic chest image (for example, an analysis that determines whether the high-frequency signal is linked to the cardiac movement for each small area within the lung field, for example, based on the cross-correlation coefficient between the waveform showing the time change in signal value in the ROI set in the cardiac area (or aortic area) and the waveform showing the time change in the high-frequency signal), and the analysis results can be reinforced as diagnostic material.If the analysis results show an area with low blood flow, it can be determined that there is a possibility of a blood flow abnormality, and the direction of the medical treatment flow can be strengthened. Furthermore, if the results of the first dynamic analysis indicate that there is something unusual about the movement of the lung field, an adhesion signal movement analysis (for example, an analysis that extracts areas where the amount of movement of each small area within the lung field is below a predetermined threshold) can be performed on the dynamic image of the chest, and the analysis results can be reinforced as diagnostic material.If the analysis results show that there is an area within the lung field where movement (signal value change) is below a predetermined threshold, it can be determined that there is a possibility of adhesion, and the direction of the next medical treatment flow can be strengthened. As a result, the time required for a definitive diagnosis can be shortened, and the burden on medical professionals and patients can be reduced.

[0054] Here, the viewer screen 253 also has an order addition button B1, similar to the viewer screen 251. This allows the doctor, after performing the second dynamic analysis, to further select a desired dynamic analysis from the dynamic analyses that have not yet been performed as a new second dynamic analysis, and the second acquisition unit 215 can further acquire a second analysis order based on the selected new dynamic analysis. This allows for flexible response in cases where, after the second dynamic analysis, additional analysis is required, or when other test results (such as blood test or electrocardiogram results) arrive and the possibility of other disease trends emerges. The Add Order button B1 may be displayed or made pressable only when further analysis is possible. For example, if all available analyses have already been performed, the button may be made unpressable or hidden. However, this does not apply to cases where reprocessing is required, including re-execution by specifying an ROI, etc. Furthermore, if the dynamic image analyzer 2 determines that the image is one for which an additional analysis order is recommended, the color of the Add Order button B1 may be changed to appeal to the user to order additional analysis (for example, if the results of the first dynamic analysis indicate a tendency for adhesion, the color of the Add Order button B1 may be changed, and a message recommending additional analysis related to adhesions may also be displayed).

[0055] As described above, the dynamic image analysis device 2 includes a first acquisition unit 212 that acquires a dynamic image and a first analysis order, which is order information for a first dynamic analysis to be performed on the dynamic image; an analysis unit 213 that performs a first dynamic analysis on the acquired dynamic image based on the first analysis order; an output unit 214 that outputs the analysis results by the analysis unit 213; and a second acquisition unit 215 that acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis to be performed on the dynamic image.When the second analysis order is acquired from the second acquisition unit 215, the analysis unit 213 performs a second dynamic analysis on the dynamic image based on the second analysis order. Therefore, in the dynamic image analyzer 2, a second analysis order can be easily obtained, which is an order for a second dynamic analysis different from the first dynamic analysis to be performed on a dynamic image on which a first dynamic analysis has been performed, and the second dynamic analysis can be performed on the dynamic image. Specifically, the second analysis order can be easily obtained and the second dynamic analysis can be performed in response to an operation from the display device operated by the doctor. Therefore, the second dynamic analysis different from the first dynamic analysis already performed can be easily performed on dynamic images already acquired in an examination without performing a new examination (imaging), thereby reinforcing the doctor's diagnostic information and strengthening the direction of the medical flow. As a result, the time until a definitive diagnosis can be shortened and the burden on medical professionals and patients can be reduced.

[0056] In addition, the second acquisition unit 215 displays an input screen on the display device (display unit 25 or image display device 3) for inputting a second analysis order or selecting from multiple options, and acquires the second analysis order based on the input or selection from the input screen. Therefore, the doctor can obtain the analysis results of the second dynamic analysis performed on the dynamic image by inputting or selecting the second analysis order from the input screen displayed on the display device.

[0057] Furthermore, the second acquisition unit 215 displays the input screen on the display device to which the analysis results of the first dynamic analysis are output by the output unit 214. Therefore, the doctor can easily input or select the second analysis order on the display device on which the analysis results of the first dynamic analysis are observed (i.e., the display device used by the doctor for operation), and obtain the analysis results of the second dynamic analysis performed on the dynamic image.

[0058] Furthermore, for example, based on information on the dynamic analysis performed on at least the dynamic image, a dynamic analysis that is an option for the second dynamic analysis is extracted, and the second acquisition unit 215 displays the extracted options for the second dynamic analysis on the input screen, thereby enabling the doctor to more easily select the second analysis order.

[0059] The above-described embodiment is a preferred example of the present invention, and the present invention is not limited to this. For example, in the above embodiment, the present invention is applied to screening using dynamic images immediately after capture, but the present invention is also effective when reviewing past dynamic images. For example, this is effective in cases where past images are analyzed from a new perspective using a second dynamic analysis, or when new analysis functions are added following a system upgrade, eliminating the need to reissue an order using RIS5, HIS6, or the like. Also, for example, in the above embodiment, pressing the add order button B1 provided on the viewer screen 251 or the viewer screen 253 displays an input screen for inputting a second analysis order, but this is merely an example and is not limited to this.

[0060] In the above description, examples have been disclosed in which a hard disk or a semiconductor nonvolatile memory is used as a computer-readable medium for the program according to the present invention, but the present invention is not limited to these examples. Portable recording media such as CD-ROMs can also be used as other computer-readable media. Furthermore, carrier waves can also be used as a medium for providing data for the program according to the present invention via a communication line.

[0061] In addition, the detailed configuration and operation of each device constituting the dynamic analysis system can be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0062] 100 Dynamic Analysis System 1. Radiography equipment 2. Dynamic image analysis device 21 Control section 211 Data control section 212 First Acquisition Section 213 Analysis Department 214 Output section 215 Second Acquisition Section 22 Memory section 23 Communications Department 24 Control section 25 Display section 26 Bus 3 Image display devices 4. Image management device

Claims

1. A dynamic image analysis device that analyzes dynamic images obtained by dynamic photography in which radiation is sequentially irradiated onto a subject, a first acquisition unit that acquires the dynamic image and a first analysis order that is order information for a first dynamic analysis to be performed on the dynamic image; an analysis unit that performs the first dynamic analysis on the dynamic image based on the first analysis order; an output unit that outputs an analysis result of the first dynamic analysis performed by the analysis unit to a display device; a second acquisition unit that acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis, to be performed on the dynamic image; Equipped with the second acquisition unit displays an input screen for inputting the second analysis order or selecting from a plurality of options on the display device on which the analysis result of the first dynamic analysis is displayed, and acquires the second analysis order based on the input or selection from the input screen; A dynamic image analysis device characterized in that when the second analysis order is acquired by the second acquisition unit, the analysis unit performs the second dynamic analysis on the dynamic image based on the second analysis order.

2. an extraction unit that extracts a dynamic analysis that is an option for the second dynamic analysis based on at least information on a dynamic analysis performed on the dynamic image; The dynamic image analysis device according to claim 1 , wherein the second acquisition unit displays the extracted options for the second dynamic analysis on the input screen.

3. The dynamic image analysis device described in Claim 2, characterized in that the extraction unit narrows down the dynamic analyses that can be performed by the dynamic image analysis device and that are options for the second dynamic analysis to be displayed on the input screen in accordance with one or more conditions.

4. A dynamic image analysis device as described in claim 2 or 3, characterized in that the dynamic analyses that are options for the second dynamic analysis displayed on the input screen are all dynamic analyses that have not yet been performed on the dynamic image, or any one or a combination of multiple of the following (1) to (5) dynamic analyses that have not yet been performed on the dynamic image. (1) Dynamic analysis narrowed down based on the trend of dynamic analysis of past images (2) Dynamic analysis narrowed down based on past analysis history (3) Dynamic analysis narrowed down based on past medical examination reports or analysis trends of other patients' images (4) Dynamic analysis that tends to be recommended or frequently analyzed based on the patient's additional information (5) Multiple preset kinetic analyses

5. Computer, a first acquisition unit that acquires dynamic images obtained by dynamic imaging in which radiation is sequentially irradiated onto a subject, and a first analysis order that is order information for a first dynamic analysis to be performed on the dynamic images; an analysis unit that performs the first dynamic analysis on the dynamic image based on the first analysis order; an output unit that outputs the analysis result of the first dynamic analysis by the analysis unit to a display device; a second acquisition unit that acquires a second analysis order, which is order information for a second dynamic analysis different from the first dynamic analysis, to be performed on the dynamic image; It functions as the second acquisition unit displays an input screen for inputting the second analysis order or selecting from a plurality of options on the display device on which the analysis result of the first dynamic analysis is displayed, and acquires the second analysis order based on the input or selection from the input screen; The analysis unit is a program characterized in that, when the second analysis order is acquired by the second acquisition unit, the analysis unit performs the second dynamic analysis on the dynamic image based on the second analysis order.

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