JPWO2019087791A1 - Diagnosis support device, endoscopy device, management device, diagnosis support method, management method, diagnosis support program, and management program - Google Patents

Abstract

Provided are a diagnostic support device capable of maintaining the recognition performance of a lesion site at a high level, an endoscope device equipped with the diagnostic support device, a management device for managing the diagnosis support device, a diagnosis support method, a management method, a diagnosis support program, and a management program. .. The control unit 10 sets the reference model delivered from the server 50 as the initial image recognition model, generates an update model from this reference model by learning based on the learning data group, and transmits the update model to the server 50. .. The control unit 51 of the server 50 evaluates the performance of this updated model using the evaluation data group used to generate the reference model, and transmits the evaluation result to the control unit 10. As a result of this evaluation, the control unit 10 changes the image recognition model being set to this update model if the performance of the update model does not deteriorate.

Description

The present invention relates to a diagnostic support device, an endoscopic device, a management device, a diagnostic support method, a management method, a diagnostic support program, and a management program.

With the development of medical equipment such as CT (Computed Tomography), MRI (Magnetic Resonance Imaging), virtual slide scanners that capture pathological specimens, and endoscopic devices, it has become possible to acquire a large amount of digitized high-definition medical image data. It has become.

In recent years, PACS (Picture Archiving) for storing medical image data
And Communication Systems) has become widespread, and these medical image data are sequentially stored together with the diagnostic findings of doctors. As the accumulation of such medical image data and cases progresses, it has become possible to detect or identify lesions using a computer, for example, as described in Patent Documents 1 and 2.

Patent Documents 1 and 2 describe a system for evaluating the performance of the updated image recognition model when the image recognition model used for detecting lesions or the like from medical image data is updated.

Japanese Unexamined Patent Publication No. 2015-116319 Japanese Unexamined Patent Publication No. 9-54764

For image recognition technology in the medical field, the manufacturer collects medical image data through joint research with hospitals, and each hospital creates a common image recognition model developed in the manufacturer's computer environment based on this medical image data. The form of using it is common.

However, there are many variations in the mode of lesions even for the same disease, and an image recognition model created only from limited medical image data cannot deal with cases and modes that appear infrequently. Therefore, a mechanism is conceivable in which the lesions encountered daily at each hospital are immediately converted into learning data and the image recognition model is updated on the hospital side.

When updating the image recognition model in this way, there is a concern that the performance will be lower than that of the previous image recognition model. Therefore, it is effective to evaluate the performance of the image recognition model as described in Patent Documents 1 and 2.

However, the tendency of patients who go to each hospital is different. In addition, the accuracy of diagnosis itself differs from hospital to hospital. Therefore, when the image recognition model generated by learning using the medical image data independently acquired by each hospital is evaluated, even if the image recognition model has sufficient performance in each hospital, the image is displayed. There is no guarantee that the cognitive model will perform well to meet general medical standards.

The present invention has been made in view of the above circumstances, and is a diagnostic support device capable of maintaining the recognition performance of a lesion site at a high level, an endoscope device including the diagnostic support device, a management device for managing the diagnosis support device, and a diagnostic support device. The purpose is to provide methods, management methods, diagnostic support programs, and management programs.

The diagnostic support device of the present invention includes a model setting unit that sets an image recognition model, and a recognition processing unit that recognizes a lesion site included in medical image data by using the image recognition model set by the model setting unit. , An update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from a setting model that is the image recognition model set by the model setting unit. A plurality of medical images that are different from the medical image data constituting the first group and are used to generate the image recognition model that is first set by the model setting unit. The second group generated by the updated model generation unit is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group containing data. The model setting unit includes an update model evaluation request unit that evaluates one update image recognition model, and the performance of the first update image recognition model evaluated by the model evaluation unit is predetermined in the model setting unit. When the above conditions are satisfied, the image recognition model to be set is changed from the setting model to the image recognition model for the first update.

The management device of the present invention is a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by a model setting unit, and a setting that is the image recognition model set by the model setting unit. It is a management device that manages a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from the model. , The update model receiving unit that receives the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and the medical image data that constitutes the first group. A storage unit that stores a second group that is a group of medical image data different from the above and includes at least a plurality of medical image data used for generating the image recognition model initially set by the model setting unit. The model evaluation unit that evaluates the performance of the image recognition model for the first update received by the update model receiver using the second group obtained from, and the evaluation result by the model evaluation unit. A condition in which the performance of the image recognition model for the first update based on the information of the evaluation result is predetermined, including a performance evaluation information transmission unit that transmits information to the diagnosis support device via the network. When the condition is satisfied, the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update.

The endoscope device of the present invention includes the above-mentioned diagnostic support device.

The diagnostic support method of the present invention includes a model setting step for setting an image recognition model and a recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step. , An update model generation step of generating an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by the model setting step. A plurality of medical images that are different from the medical image data constituting the first group and are used to generate the image recognition model that is first set by the model setting step. The second group generated by the update model generation step is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group containing data. The model setting step includes an update model evaluation request step for evaluating one update image recognition model, and the performance of the first update image recognition model evaluated by the model evaluation unit is predetermined in the model setting step. When the above conditions are satisfied, the image recognition model to be set is changed from the setting model to the image recognition model for the first update.

The diagnostic support program of the present invention includes a model setting step for setting an image recognition model and a recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step. , An update model generation step of generating an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by the model setting step. A plurality of medical images that are different from the medical image data constituting the first group and are used to generate the image recognition model that is first set by the model setting step. The second group generated by the update model generation step is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group containing data. A program for causing a computer to execute an update model evaluation request step for evaluating an image recognition model for update, and in the model setting step, for the first update evaluated by the model evaluation unit. When the performance of the image recognition model of is satisfied with a predetermined condition, the image recognition model to be set is changed from the setting model to the image recognition model for the first update.

The management method of the present invention is a setting of a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by a model setting unit and the image recognition model set by the model setting unit. It is a management method that manages a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from the model. , The update model receiving step of receiving the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and the medical image data constituting the first group. A storage unit that stores a second group that is a group of medical image data different from the above and includes at least a plurality of medical image data used for generating the image recognition model initially set by the model setting unit. Using the second group obtained from the above, the model evaluation step for evaluating the performance of the image recognition model for the first update received by the update model reception step and the evaluation result by the model evaluation step A condition in which the performance of the image recognition model for the first update based on the information of the evaluation result is predetermined, including a performance evaluation information transmission step of transmitting the information to the diagnosis support device via the network. When the condition is satisfied, the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update.

The management program of the present invention is a setting that is a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by a model setting unit and the image recognition model set by the model setting unit. A management program for managing a diagnostic support device having an update model generator that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from a model. Therefore, the update model receiving step of receiving the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and the medical use constituting the first group. Stores a second group that is a group of medical image data different from the image data and includes at least a plurality of medical image data used to generate the image recognition model initially set by the model setting unit. Using the second group acquired from the storage unit, a model evaluation step for evaluating the performance of the image recognition model for the first update received by the update model reception step, and an evaluation by the model evaluation step. A program for causing a computer to execute a performance evaluation information transmission step of transmitting result information to the diagnostic support device via the network, and an image for the first update based on the evaluation result information. When the performance of the recognition model satisfies a predetermined condition, the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update.

According to the present invention, a diagnostic support device capable of maintaining the recognition performance of a lesion site at a high level, an endoscope device including the diagnostic support device, a management device for managing the diagnosis support method, a diagnosis support method, a management method, and a diagnosis support program. And management programs can be provided.

It is a figure which shows the schematic structure of the diagnostic support system 100 including the diagnostic support measure and the management device which is one Embodiment of this invention. It is a figure which shows the functional block of the control part 10 of the terminal apparatus 1A shown in FIG. It is a figure which shows the functional block of the control part 51 of the server 50 shown in FIG. It is a sequence chart for demonstrating the operation of the diagnosis support system 100 shown in FIG. It is a sequence chart for demonstrating the modification of the operation of the diagnosis support system 100 shown in FIG. It is a figure which shows the functional block of the control part 10 of the terminal apparatus 1A in the diagnosis support system 100 of the first modification. It is a figure which shows the functional block of the control part 51 of the server 50 in the diagnosis support system 100 of the first modification. It is a sequence chart for demonstrating the operation of the diagnosis support system 100 of the 1st modification. It is a sequence chart for demonstrating another operation of the diagnosis support system 100 of the 1st modification.

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

FIG. 1 is a diagram showing a schematic configuration of a diagnostic support system 100 including a diagnostic support measure and a management device according to an embodiment of the present invention.

As shown in FIG. 1, the diagnosis support system 100 includes a terminal device 1A and a database 1B installed in the hospital HP1, a terminal device 2A and a database 2B installed in the hospital HP2, and a terminal device 3A installed in the hospital HP3. And a database 3B and a server 50.

The terminal device 1A, the terminal device 2A, the terminal device 3A, and the server 50 are electronic devices such as a personal computer or a tablet terminal, respectively.

The terminal devices 1A, 2A, and 3A may be medical devices such as an endoscope device installed in a hospital. For example, among the light source device, the control device, and the endoscope that constitute the endoscope device, the control device constitutes the terminal devices 1A, 2A, and 3A.

The terminal device 1A includes a control unit 10 and a communication unit 11.

The control unit 10 includes various processors that execute programs to perform processing, a RAM (Random Access Memory), and a ROM (Read Only Memory).

As various processors, programmable logic which is a processor whose circuit configuration can be changed after manufacturing such as CPU (Central Processing Unit), FPGA (Field Programmable Gate Array), which is a general-purpose processor that executes a program and performs various processes. A dedicated electric circuit or the like, which is a processor having a circuit configuration specially designed for executing a specific process such as a device (Programmable Logic Device: PLD) or an ASIC (Application Special Integrated Circuit), and the like are included.

More specifically, the structures of these various processors are electric circuits in which circuit elements such as semiconductor elements are combined.

The control unit 10 may be composed of one of various processors, or may be composed of a combination of two or more processors of the same type or different types (for example, a combination of a plurality of FPGAs or a combination of a CPU and an FPGA). You may.

The communication unit 11 is limited to an interface for communicating with other electronic devices via an internal network such as an in-hospital LAN (Local Area Network) constructed in the hospital HP1 and to users of the diagnostic support system 100. It includes an interface for communicating with other electronic devices via a network 40 such as a LAN or the Internet.

The control unit 10 controls the communication unit 11 to communicate with other devices (including the database 1B) connected to the internal network and other electronic devices connected to the network 40.

The database 1B is connected to the internal network of the hospital HP1, and is composed of, for example, NAS (Network Attached Storage).

Database 1B uses medical image data obtained by an endoscope device, an ultrasonic diagnostic device, a radiographic image diagnostic device, or various medical devices capable of outputting medical image data such as MRI installed in the hospital HP1 for patients. Store together with information and diagnostic information. Database 1B is used in, for example, PACS operated in hospital HP1.

The terminal device 2A includes a control unit 20 and a communication unit 21.

The control unit 20 includes the above-mentioned various processors that execute a program and perform processing, a RAM, and a ROM.

The communication unit 21 has an interface for communicating with other electronic devices via an internal network such as an in-hospital LAN constructed in the hospital HP2 and an interface for communicating with other electronic devices via the network 40. And include.

The control unit 20 controls the communication unit 21 to communicate with other devices (including the database 2B) connected to the internal network and other electronic devices connected to the network 40.

The database 2B is connected to the network in the hospital HP2, and is configured by, for example, NAS.

Database 2B stores medical image data obtained by various medical devices installed in hospital HP2 together with patient information, diagnostic information, and the like. Database 2B is used in, for example, PACS operated in hospital HP2.

The terminal device 3A includes a control unit 30 and a communication unit 31.

The control unit 30 includes the above-mentioned various processors that execute a program and perform processing, a RAM, and a ROM.

The communication unit 31 has an interface for communicating with other electronic devices via an internal network such as an in-hospital LAN constructed in the hospital HP3 and an interface for communicating with other electronic devices via the network 40. And include.

The control unit 30 controls the communication unit 31 to communicate with other devices (including the database 3B) connected to the internal network and other electronic devices connected to the network 40.

The database 3B is connected to the network in the hospital HP3, and is configured by, for example, NAS.

Database 3B stores medical image data obtained by various medical devices installed in hospital HP3 together with patient information, diagnostic information, and the like. Database 3B is used, for example, in PACS operated in hospital HP3.

In the example of FIG. 1, three terminal devices (1A, 2A, 3A) are connected to the network 40, but the number of terminal devices connected to the network 40 is one, two, or four or more. You may.

The server 50 includes a control unit 51, a communication unit 52, and a database 53.

The control unit 51 includes the above-mentioned various processors that execute a program and perform processing, a RAM, and a ROM.

The communication unit 52 is an interface for communicating with other electronic devices via the network 40.

The control unit 51 controls the communication unit 52 to communicate with other electronic devices connected to the network 40.

The database 53 stores data in a storage medium such as a hard disk or a semiconductor memory, and is generated by each of the control unit 10 of the terminal device 1A, the control unit 20 of the terminal device 2A, and the control unit 30 of the terminal device 3A. An evaluation data group consisting of a plurality of medical image data for evaluating the update image recognition model described later is stored. The evaluation data group constitutes the second group. The database 53 constitutes a storage unit.

The database 53 may be a storage device provided in a location accessible from the control unit 51. For example, the database 53 may be a NAS connected to the network 40. Alternatively, the database 53 may be a storage device using a disk or SSD (solid state drive) externally attached to the server 50.

The diagnosis support system 100 distributes a reference image recognition model (hereinafter, also referred to as a reference model) generated by the administrator of the server 50 to the terminal devices 1A, 2A, and 3A constituting the diagnosis support system 100.

The control units 10, 20, and 30 of the terminal devices 1A, 2A, and 3A use this reference model to perform recognition processing for recognizing the lesion site on the medical image data obtained from the medical equipment of each hospital. .. In this way, the diagnosis support system 100 supports the diagnosis performed in each hospital by delivering the reference model.

The above-mentioned recognition process refers to a process for detecting a lesion site from medical image data and identifying the detected lesion site. Among these recognition processes, the process for detecting the lesion site is called the detection process, and the process for identifying the lesion site is called the identification process. The recognition process may be a process including at least a detection process.

Detection of a lesion site means finding a site (lesion candidate region) suspected to be a lesion such as a malignant tumor or a benign tumor from medical image data.

Identification of the lesion site means whether the lesion site detected by the detection process is malignant, benign, what kind of disease it is if it is malignant, how far the disease progresses, and so on. , Distinguishing the type or nature of the detected lesion site.

The image recognition model for performing these detection processes and identification processes is a model including a program that performs identification using parameters and parameters for feature amount extraction and discrimination determined by machine learning, deep learning, or the like (for example,). , Neural network or support vector machine, etc.).

The performance of the image recognition model can be evaluated by the success rate of detection of the lesion site, the success rate of identification of the lesion site, and the like.

The reference model generated by the administrator of the server 50 is designed so that its performance meets a predetermined level.

Specifically, this criterion is based on machine learning or deep learning based on a plurality of medical image data (with diagnostic findings of general cases added) excluding medical image data to which diagnostic findings of special cases are added. The model is generated.

All the medical image data used for generating this reference model or a set of some medical image data of all the medical image data is stored in the database 53 of the server 50 as the above-mentioned evaluation data group.

FIG. 2 is a diagram showing a functional block of the control unit 10 of the terminal device 1A shown in FIG.

The processor of the control unit 10 executes the diagnostic support program stored in the ROM built in the control unit 10 to execute the model setting unit 10A, the recognition processing unit 10B, the update model generation unit 10C, and the update model evaluation request unit. It functions as a diagnostic support device equipped with 10D.

The recognition processing unit 10B applies an image recognition model to the medical image data stored in the database 1B or the medical image data obtained in real time from the medical device in the hospital HP1, and recognizes the lesion site included in the medical image data. Perform processing. The result of this recognition process is displayed on a display device or the like (not shown) connected to the terminal device 1A. The doctor makes a diagnosis by referring to this result.

As a result of the recognition processing by the recognition processing unit 10B, the doctor determines that the recognition processing is inaccurate (the lesion site is erroneously detected, the lesion site is detected even though the lesion site is included). No, it is judged that the detection of the lesion site is correct but the content of the identification result is not as detailed as the doctor wants, or the identification result of the lesion site is incorrect), according to the recognition processing unit 10B. Information indicating that the recognition process has been low-precision (hereinafter referred to as low-precision information) is manually stored in the database 1B in association with the medical image data to which the recognition process has been performed.

The model setting unit 10A sets the image recognition model to be applied to the medical image data by the recognition processing unit 10B. In the initial state, the model setting unit 10A sets the above-mentioned reference model delivered from the server 50.

Further, the model setting unit 10A changes the setting of the image recognition model to be applied to the medical image data by the recognition processing unit 10B based on the performance evaluation information described later received from the server 50 via the network 40.

When a predetermined number of medical image data to which low-precision information is added is stored in the database 1B, the update model generation unit 10C sets a set of the predetermined number of medical image data as a learning data group.

In this learning data group, medical image data in which the lesion site was erroneously detected, medical image data in which the lesion site was not detected even though the lesion site was included, and the lesion site were detected correctly, but the identification result was obtained. It is composed of medical image data whose contents are not as detailed as the doctor desires, medical image data in which the lesion site is erroneously identified, and the like. The training data group constitutes the first group. The medical image data constituting the learning data group does not overlap with the medical image data constituting the evaluation data group stored in the database 53.

Then, the update model generation unit 10C uses the setting model, which is an image recognition model set by the model setting unit 10A, to perform learning based on this learning data group, and the first update image recognition model (hereinafter, first). Is called the update model of).

Specifically, the update model generation unit 10C sets the ability (for example, detection success rate or identification success rate) of the image recognition model for update when the learning data group is the recognition target to be equal to or higher than a predetermined set value. Therefore, at least one of the parameters and the hierarchical structure of the setting model is modified by machine learning or deep learning using the training data group, and the modified setting model is used as the first update model.

The update model evaluation request unit 10D transmits the first update model generated by the update model generation unit 10C to the server 50, so that the server 50 evaluates the first update model. Sending an update model means sending at least one of the parameter information of the update model and the structure information of the update model.

The configuration of the control unit 20 of the terminal device 2A is the same as that of the control unit 10 described above. In the description of the function of the control unit 10, the terminal device 1A is read as the terminal device 2A, and the database 1B is read as the database 2B. Since the hospital HP1 is simply read as the hospital HP2, the description thereof will be omitted.

Further, the configuration of the control unit 30 of the terminal device 3A is the same as that of the control unit 10 described above, and in the description of the function of the control unit 10, the terminal device 1A is read as the terminal device 3A, and the database 1B is read as the database 3B. Since the hospital HP1 is simply read as the hospital HP3, the description thereof will be omitted.

FIG. 3 is a diagram showing a functional block of the control unit 51 of the server 50 shown in FIG.

The processor of the control unit 51 is a management device including an update model reception unit 51A, a model evaluation unit 51B, and a performance evaluation information transmission unit 51C by executing a management program stored in a ROM built in the control unit 51. Function.

The update model receiving unit 51A transmits the first update model generated by the update model generation unit 10C of the terminal device 1A (2A, 3A) from the terminal device 1A (2A, 3A) via the network 40 and the communication unit 52. To receive.

The model evaluation unit 51B acquires an evaluation data group from the database 53, and uses this evaluation data group to evaluate the performance of the first update model received by the update model reception unit 51A.

Specifically, the model evaluation unit 51B inputs each medical image data of the evaluation data group into the first update model received by the update model reception unit 51A, and the medical image data constituting the evaluation data group. Calculate the ratio (recognition success rate) of the medical image data for which the result of the recognition process is successful to the total number of.

When the recognition success rate is lower than the recognition success rate in the reference model, the model evaluation unit 51B generates evaluation result information indicating that the performance of the first update model has deteriorated.

On the other hand, the model evaluation unit 51B generates evaluation result information indicating that the performance of the first updated model is not deteriorated when the recognition success rate is equal to or higher than the recognition success rate in the reference model. ..

The performance evaluation information transmission unit 51C transmits the evaluation result information generated by the model evaluation unit 51B to the terminal devices (1A, 2A, 3A) of the transmission source of the first update model via the communication unit 52 and the network 40. Send.

In the model setting unit 10A shown in FIG. 2, when the performance of the first update model based on the above performance evaluation information received from the server 50 satisfies a predetermined condition, the recognition processing unit 10B converts the medical image data into medical image data. The image recognition model to be applied is changed to the first update model generated by the update model generation unit 10C.

On the other hand, in the model setting unit 10A shown in FIG. 2, when the performance of the first update model based on the above performance evaluation information received from the server 50 does not satisfy the above conditions, the recognition processing unit 10B converts the medical image data into medical image data. The setting of the image recognition model to be applied is not changed.

The above condition is set so that the performance of the first updated model is equal to or higher than the performance of the reference model. The above condition is not limited to this, and for example, the content that the difference between the performance of the first update model and the performance of the reference model is less than the threshold value may be set.

The operation of the diagnostic support system 100 configured as described above will be described.

FIG. 4 is a sequence chart for explaining the operation of the diagnosis support system 100 shown in FIG. Although FIG. 4 illustrates the operation between the terminal device 1A and the server 50, the same applies to the operation between the terminal devices 2A and 3A and the server 50.

When the reference model is delivered to the terminal device 1A, the model setting unit 10A of the terminal device 1A sets this reference model as an initial image recognition model (step S1).

After that, when a learning data group consisting of medical image data associated with low-precision information is accumulated in the database 1B, the update model generation unit 10C of the terminal device 1A uses the image recognition model set by the model setting unit 10A. , Training is performed based on this training data group, and a first update model is generated from this image recognition model (step S2).

Next, the update model evaluation request unit 10D of the terminal device 1A transmits the first update model generated in step S2 to the server 50 via the network 40 (step S3).

In the server 50, the update model receiving unit 51A receives the first update model transmitted in step S3 (step S4).

Then, the model evaluation unit 51B of the server 50 acquires the evaluation data group from the database 53 (step S5), and uses this evaluation data group to determine the performance of the first update model received in step S4. Evaluate (step S6).

When the performance evaluation information is generated in the process of step S6, the performance evaluation information transmission unit 51C of the server 50 transmits this performance evaluation information to the terminal device 1A via the network 40 (step S7).

When the performance evaluation information transmitted in step S7 is received by the communication unit 11 of the terminal device 1A, the model setting unit 10A should change the setting of the image recognition model based on the received performance evaluation information. It is determined whether or not it is possible (step S8).

When the performance evaluation information is information indicating performance deterioration (step S8: YES), the model setting unit 10A maintains the currently set image recognition model setting. In this case, the process returns to step S2.

When the performance evaluation information is information indicating that there is no performance deterioration (step S8: NO), the model setting unit 10A updates the image recognition model being set with the first update generated in step S2. Change to a model (step S9). After step S9, the process returns to step S2.

As described above, according to the diagnosis support system 100, for example, when the first update model is generated in the terminal device 1A, the performance of the first update model is evaluated in the server 50. The evaluation data group used to evaluate this performance is a set of medical image data used to generate the reference model. Therefore, if the performance of the first update model for this evaluation data group is equal to or higher than the performance of the reference model, the performance of the first update model satisfies a certain level.

Then, when the performance of the first update model evaluated by the server 50 is equal to or higher than the performance of the reference model, the image recognition model being set is changed to the first update model in the terminal device 1A. ..

Therefore, in the terminal device 1A, the learning data group including the medical image data associated with the diagnostic findings of the special case and the evaluation data group including the medical image data associated with the general diagnostic findings are respectively. It is possible to set the first update model that can support high performance.

Therefore, the accuracy of the recognition process in the terminal devices 1A, 2A, and 3A can be improved, and effective diagnostic support can be provided to each hospital.

Further, according to the diagnosis support system 100, the server 50 evaluates the performance of the first update model using the evaluation data group including a huge amount of medical image data. As described above, since the processing with a large load is performed by the server 50, it is not necessary to prepare a high-performance control unit for each terminal device 1A, 2A, 3A. As a result, it is possible to prevent an increase in hospital management costs.

Further, according to the diagnosis support system 100, the information transmitted / received between the terminal devices 1A, 2A, 3A and the server 50 is only the first update model and the performance evaluation information.

Therefore, the risk of highly confidential medical image data leaking to the outside of the hospital can be reduced, and the safety can be improved. In addition, the amount of communication in the entire system can be reduced, the cost of constructing a dedicated line as a network becomes unnecessary, and the cost of the entire system can be reduced.

FIG. 5 is a sequence chart for explaining a modified example of the operation of the diagnosis support system 100. The sequence chart shown in FIG. 5 is obtained by adding steps S10 to S17 to the sequence chart shown in FIG. In FIG. 5, the same processing as in FIG. 4 is designated by the same reference numerals and description thereof will be omitted.

When the performance evaluation information is information indicating a performance deterioration (step S8: YES), the model setting unit 10A maintains the currently set image recognition model setting. Then, in this case, the update model generation unit 10C of the terminal device 1A performs the first update generated in step S2 by relearning based on the learning data group used for generating the first update model in step S2. From the model, a new image recognition model for the second update (hereinafter referred to as the second update model) is generated (step S10).

For example, when the first update model generated in step S2 has the ability to successfully recognize (detect and identify) the lesion site for all the medical image data included in the training data group. Take as an example.

In this example, in step S10, the update model generation unit 10C succeeds in recognizing (detecting and identifying) the lesion site for, for example, 50% of all the medical image data included in the learning data group. A second update model with the ability to perform is generated by retraining.

Next, the update model evaluation request unit 10D transmits the second update model generated in step S10 to the server 50 (step S11).

In the server 50, the update model receiving unit 51A receives the second update model transmitted in step S11 (step S12).

Then, the model evaluation unit 51B of the server 50 acquires the evaluation data group from the database 53 (step S13), and uses this evaluation data group to determine the performance of the second update model received in step S12. Evaluate (step S14).

When the performance evaluation information is generated in the process of step S14, the performance evaluation information transmission unit 51C of the server 50 transmits this performance evaluation information to the terminal device 1A via the network 40 (step S15).

When the performance evaluation information transmitted in step S15 is received by the communication unit 11 of the terminal device 1A, the model setting unit 10A should change the setting of the image recognition model based on the received performance evaluation information. Judge whether or not it is possible.

When the received performance evaluation information is information indicating performance deterioration (step S16: YES), the model setting unit 10A maintains the currently set image recognition model setting. In this case, the process returns to step S2.

When the received performance evaluation information is information indicating that there is no performance deterioration (step S16: NO), the model setting unit 10A generates the image recognition model being set in step S10. Change to the second update model (step S17). After step S17, the process returns to step S2.

In the operation example shown in FIG. 5, when the determination in step S8 is YES, the update model generation unit 10C generates the second update model once, and the performance of the second update model deteriorates. If there is, the image recognition model being set is not changed.

However, when the determination in step S16 is YES, the update model generation unit 10C generates a new second update model different from the second update model generated in step S10, and this new second update model is generated. If there is a deterioration in the performance of the updated model of, the image recognition model being set is not changed, and if there is no deterioration in the performance of this new second update model, the image recognition model being set is this. It may be changed to a new second update model.

That is, in FIG. 5, when the determination in step S8 is YES, the set of processes from steps S10 to S17 may be performed a plurality of times. However, the second update model generated by re-learning in each of these multiple sets will all have different performance.

As a result of evaluating the performance of the first update model by the evaluation data group, the fact that the performance is lower than that of the reference model means that the medical image data constituting the training data group used in this first update model It is highly specific, and it is considered that the first update model is over-adapted to highly specific medical image data.

Therefore, this excessive adaptation can be mitigated by generating a second update model in which the performance of the recognition process for this learning data group is reduced. As a result of evaluating the performance of this second update model using the evaluation data group, if the performance is equal to or higher than the performance of the reference model, the performance of this second update model satisfies a certain level. Will have.

On the other hand, this second update model can also obtain sufficient performance for medical image data of a part (for example, 50%) of the training data group. Therefore, by setting this second update model, the accuracy of the recognition process in the terminal device 1A can be improved.

Even if the performance of the second update model is gradually reduced by retraining, if the performance is not equal to or higher than the performance of the reference model, it can be said that the training data group is too specific. .. In such a case, the model setting unit 10A does not change the settings to the first update model and the second update model, so that the terminal device 1A can maintain a certain level of performance.

Next, a first modification of the diagnostic support system 100 shown in FIG. 1 will be described. In this first modification, the functions of the control units 10, 20, and 30 of the terminal devices 1A, 2A, and 3A in the diagnosis support system 100 are changed, and the functions of the control unit 51 of the server 50 in the diagnosis support system 100 are changed. ing.

FIG. 6 is a diagram showing a functional block of the control unit 10 of the terminal device 1A in the diagnosis support system 100 of the first modification. In FIG. 6, the same configurations as those shown in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. The functional blocks of the control unit 20 and the control unit 30 have the same configuration as shown in FIG.

The processor of the control unit 10 shown in FIG. 6 executes a diagnostic support program stored in the ROM built in the control unit 10, thereby executing the model setting unit 10A, the recognition processing unit 10B, the update model generation unit 10C, and the update model. It functions as a diagnostic support device including an evaluation request unit 10D and a memory control unit 10E.

When the performance of the first update model based on the performance evaluation information received from the server 50 satisfies the above conditions, the storage control unit 10E includes all medical data included in the training data group used to generate this update model. The image data is transmitted to the server 50, and all the medical image data are stored in the database 53 as the medical image data constituting the evaluation data group.

FIG. 7 is a diagram showing a functional block of the control unit 51 of the server 50 in the diagnosis support system 100 of the first modification. In FIG. 7, the same components as those in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

The processor of the control unit 51 shown in FIG. 7 executes the management program stored in the ROM built in the control unit 51, thereby executing the update model receiving unit 51A, the model evaluation unit 51B, the performance evaluation information transmitting unit 51C, and the medical use. It functions as a management device including an image receiving unit 51D and a storage control unit 51E.

The medical image receiving unit 51D receives the learning data group transmitted by the storage control unit 10E of the control unit 10 shown in FIG. 6 via the communication unit 52.

The storage control unit 51E stores the learning data group received by the medical image receiving unit 51D in the database 53 as a part of the evaluation data group stored in the database 53. That is, the storage control unit 51E updates the evaluation data group.

FIG. 8 is a sequence chart for explaining the operation of the diagnosis support system 100 of the first modification. Although FIG. 8 illustrates the operation between the terminal device 1A and the server 50, the same applies to the operation between the terminal devices 2A and 3A and the server 50.

The sequence chart shown in FIG. 8 is obtained by adding steps S10 and S11 to the sequence chart shown in FIG. In FIG. 8, the same processing as in FIG. 4 is designated by the same reference numerals and description thereof will be omitted.

When the first update model is set by the model setting unit 10A of the control unit 10 in step S9, the storage control unit 10E of the control unit 10 uses the learning data group used to generate the first update model as a server. It is transmitted to 50 (step S20).

When the learning data group transmitted in step S20 is received by the medical image receiving unit 51D of the server 50, this learning data group is added to the evaluation data group by the storage control unit 51E of the server 50 for evaluation. The data group is updated (step S21).

As described above, according to the diagnosis support system 100 of the first modification, for example, when the first update model is set in the terminal device 1A, it is used to generate the first update model. The training data group is additionally stored in the database 53 as an evaluation data group.

The first update model set in the terminal device 1A has sufficient performance for both the training data group used for generating the first update model and the evaluation data group. There is. That is, it can be determined that this learning data group is not so specific as compared with the evaluation data group.

Therefore, when the first update model is set in the terminal device 1A, the model evaluation unit of the server 50 is added by adding the training data group used for generating the first update model to the evaluation data group. The 51B can increase the number of medical image data that can be handled for evaluating the performance of the updated model, and can improve the accuracy of evaluating the performance of the updated model.

It is also possible to apply the process of generating the second update model described in FIG. 5 to the diagnosis support system 100 of the first modification.

FIG. 9 is a sequence chart for explaining another operation of the diagnosis support system 100 of the first modification. Although FIG. 9 illustrates the operation between the terminal device 1A and the server 50, the same applies to the operation between the terminal devices 2A and 3A and the server 50.

The sequence chart shown in FIG. 9 is obtained by adding steps S30 to S39 to the sequence chart shown in FIG. In FIG. 9, the same processing as in FIG. 8 is designated by the same reference numerals and description thereof will be omitted.

When the performance evaluation information is information indicating a performance deterioration (step S8: YES), the model setting unit 10A maintains the currently set image recognition model setting. Then, in this case, the update model generation unit 10C of the terminal device 1A updates from the first update model to the second update by relearning based on the learning data group used for generating the first update model in step S2. Generate a model (step S30).

Next, the update model evaluation request unit 10D transmits the second update model generated in step S30 to the server 50 (step S31).

In the server 50, the update model receiving unit 51A receives the second update model transmitted in step S31 (step S32).

Then, the model evaluation unit 51B of the server 50 acquires the evaluation data group from the database 53 (step S33), and uses this evaluation data group to perform the performance of the second update model received in step S32. Evaluation is performed (step S34).

When the performance evaluation information is generated in the process of step S34, the performance evaluation information transmission unit 51C of the server 50 transmits this performance evaluation information to the terminal device 1A via the network 40 (step S35).

When the performance evaluation information transmitted in step S35 is received by the communication unit 11 of the terminal device 1A, the model setting unit 10A should change the setting of the image recognition model based on the received performance evaluation information. Judge whether or not it is possible.

When the received performance evaluation information is information indicating performance deterioration (step S36: YES), the model setting unit 10A maintains the currently set image recognition model setting. In this case, the process returns to step S2.

When the received performance evaluation information is information indicating that there is no performance deterioration (step S36: NO), the model setting unit 10A generates the image recognition model being set in step S30. Change to the second update model (step S37).

When the second update model is set in step S37, the storage control unit 10E of the control unit 10 performs the recognition process by the second update model among the learning data groups used for the second update model. The successful medical image data is extracted, and the extracted medical image data is transmitted to the server 50 (step S38).

When the medical image data transmitted in step S38 is received by the medical image receiving unit 51D of the server 50, the medical image data is added to the evaluation data group by the storage control unit 51E of the server 50 for evaluation. The data group is updated (step S39).

As described above, according to the operation example shown in FIG. 9, for example, when the second update model is set in the terminal device 1A, the learning data group used to generate the second update model. Is additionally stored in the database 53 as an evaluation data group.

The medical image data of the learning data group additionally stored in the database 53 as the evaluation data group is the data that can be successfully recognized by the second update model. And this second update model has sufficient recognition performance even for the original evaluation data group. That is, it can be determined that the medical image data that can be successfully recognized by the second update model is not so specific as compared with the evaluation data group.

Therefore, when the second update model is set in the terminal device 1A, the server 50 is added by adding a part of the learning data group for which recognition is successful in the second update model to the evaluation data group. It is possible to improve the accuracy of evaluation of the performance of the updated model by.

In the description so far, as the second update model, an example in which the performance is lower than that of the first update model has been shown, but the present invention is not limited to this. The second update model may have a different configuration (at least one of the hierarchical structure or parameters) from the first update model.

Further, in step S10 in the flowchart shown in FIG. 5 and step S30 in the flowchart shown in FIG. 9, the update model generation unit 10C acquires an evaluation data group from the server 50 and relearns using the evaluation data group. The second update model may be generated from the first update model.

According to this configuration, the second update model is generated based on both the training data group and the evaluation data group, so that the performance of the second update model can be improved and the image recognition model can be improved. It is possible to increase the probability that the update will be made.

Further, in the diagnostic support system 100 described so far, the model evaluation unit 51B of the control unit 51 of the server 50 may have a configuration of the control units 10, 20 and 30 of the terminal devices 1A, 2A and 3A, respectively. ..

In this configuration, the update model evaluation request unit 10D of the control unit 10 transmits the first update model or the second update model to the model evaluation unit 51B to evaluate the performance of these update models. Then, the model setting unit 10A of the control unit 10 changes the setting of the image recognition model based on the information of the evaluation result generated by the model evaluation unit 51B.

Further, the model evaluation unit 51B of the control unit 10 accesses the database 53 via the network 40, acquires the evaluation data group from the database 53, and uses it for the evaluation of the update model.

In this way, it is also possible to evaluate the update model in the terminal devices 1A, 2A, and 3A. According to this configuration, the processing load of the server 50 can be reduced, and the cost required for system construction can be reduced.

As described above, the following matters are disclosed in the present specification.

(1) A model setting unit for setting an image recognition model, a recognition processing unit for recognizing a lesion site included in medical image data using the image recognition model set by the model setting unit, and the model setting unit. An update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from a setting model that is the image recognition model set by A group of medical image data different from the medical image data constituting the group, and at least including a plurality of medical image data used for generating the image recognition model initially set by the model setting unit. The model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores the second group is used for the first update generated by the update model generation unit. An update model evaluation request unit for evaluating an image recognition model is provided, and the model setting unit satisfies a predetermined condition for the performance of the first update image recognition model evaluated by the model evaluation unit. A diagnostic support device that changes the image recognition model to be set from the setting model to the image recognition model for the first update.

(2) In the diagnostic support device described in (1), when the performance of the image recognition model for the first update does not satisfy the above conditions, the update model generation unit is assigned to the first group. By re-learning based on the above, at least one image recognition model for the second update is generated from the image recognition model for the first update, and the update model evaluation request unit is generated by the update model generation unit. Let the above model evaluation unit evaluate the image recognition model for the second update.
When the performance of the image recognition model for the second update evaluated by the model evaluation unit satisfies the above condition, the model setting unit is evaluated to have the performance satisfying the condition. A diagnostic support device that sets an image recognition model for updating.

(3) In the diagnostic support device described in (1), if the performance of the image recognition model for the first update does not satisfy the above conditions, the update model generation unit is placed in the second group. By retraining based on the above, at least one image recognition model for the second update is generated from the image recognition model for the first update, and the update model evaluation request unit is generated by the update model generation unit. When the model evaluation unit evaluates the image recognition model for the second update, and the model setting unit satisfies the above conditions when the performance of the image recognition model for the second update evaluated by the model evaluation unit satisfies the above conditions. Is a diagnostic support device that sets an image recognition model for the second update, which is evaluated to have performance that satisfies the condition.

(4) Of the medical image data included in the first group when the model setting unit sets the image recognition model for the second update in the diagnostic support device described in (2). , A diagnosis further including a memory control unit that stores medical image data in which the recognition of the lesion site is successful by the second update image recognition model as medical image data constituting the second group in the storage unit. Support device.

(5) The diagnostic support device according to (4), the memory control unit is included in the first group when the performance of the image recognition model for the first update satisfies the above conditions. A diagnostic support device that stores the medical image data in the storage unit as medical image data constituting the second group.

(6) The first group when the diagnostic support device according to any one of (1) to (3) and the performance of the image recognition model for the first update satisfies the above conditions. A diagnostic support device further comprising a storage control unit that stores the medical image data included in the above-mentioned medical image data in the storage unit as medical image data constituting the second group.

(7) The diagnostic support device according to any one of (1) to (6), wherein the model evaluation unit is provided in a management device connected to the diagnostic support device via a network. Diagnostic support device.

(8) The diagnostic support device according to any one of (1) to (6), further including the model evaluation unit.

(9) An endoscope device including the diagnostic support device according to any one of (1) to (8).

(10) From the recognition processing unit that recognizes the lesion site included in the medical image data by the image recognition model set by the model setting unit, and the setting model that is the image recognition model set by the model setting unit. A management device that manages a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of medical image data of the above. The update model receiving unit that receives the image recognition model for the first update generated by the generation unit from the diagnostic support device via the network, and the medical image data that constitutes the first group are different for medical use. Obtained from a storage unit that stores a second group that is a group of image data and includes at least a plurality of medical image data used for generating the image recognition model initially set by the model setting unit. Using the second group, the model evaluation unit that evaluates the performance of the image recognition model for the first update received by the update model receiving unit and the evaluation result information by the model evaluation unit are described above. When the performance evaluation information transmission unit for transmitting to the diagnosis support device via the network is provided, and the performance of the image recognition model for the first update based on the evaluation result information satisfies a predetermined condition. , A management device in which the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update.

(11) In the management device according to (10), when the performance based on the information of the evaluation result does not satisfy the above conditions, the relearning based on the first group is performed for the first update. At least one image recognition model for the second update is generated from the image recognition model of the above by the update model generation unit, and the update model receiving unit obtains the image recognition model for the second update from the diagnosis support device. Upon receiving, the model evaluation unit evaluates the image recognition model for the second update received by the update model reception unit, and the performance evaluation information transmission unit evaluates the second update by the model evaluation unit. If the information of the evaluation result of the image recognition model for update is transmitted to the diagnostic support device and the performance of the image recognition model for update of the second update based on the information of the evaluation result satisfies the above condition, the condition is satisfied. A management device in which the image recognition model for the second update, which is evaluated to have the performance to satisfy the above conditions, is set by the model setting unit.

(12) In the management device according to (10), when the performance based on the information of the evaluation result does not satisfy the above conditions, the relearning based on the second group is performed for the first update. At least one image recognition model for the second update is generated from the image recognition model of the above by the update model generation unit, and the update model receiving unit obtains the image recognition model for the second update from the diagnosis support device. Upon receiving, the model evaluation unit evaluates the image recognition model for the second update received by the update model reception unit, and the performance evaluation information transmission unit evaluates the second update by the model evaluation unit. If the information of the evaluation result of the image recognition model for update is transmitted to the diagnostic support device and the performance of the image recognition model for update of the second update based on the information of the evaluation result satisfies the above condition, the condition is satisfied. A management device in which the image recognition model for the second update, which is evaluated to have the performance to satisfy the above conditions, is set by the model setting unit.

(13) In the management device according to (11) or (12), when the image recognition model for the second update is set by the model setting unit, the medical use included in the first group. Among the image data, the medical image receiving unit that receives the medical image data in which the lesion site is successfully recognized by the image recognition model for the second update from the diagnostic support device via the network, and the medical image. A management device further comprising a storage control unit that stores the medical image data received by the receiving unit in the storage unit as medical image data constituting the second group.

(14) In the management device according to (13), the medical image receiving unit is described above when the performance of the image recognition model for the first update based on the information of the evaluation result satisfies the above conditions. The medical image data included in the first group is received from the diagnostic support device via the network, and the storage control unit receives the medical image data received by the medical image receiving unit from the second group. A management device that stores the medical image data constituting the group in the above storage unit.

(15) When the management device according to any one of (10) to (12) and the performance of the image recognition model for the first update based on the information of the evaluation result satisfies the above conditions. The medical image receiving unit that receives the medical image data included in the first group from the diagnostic support device via the network, and the medical image data received by the medical image receiving unit are the first. A management device further comprising a storage control unit for storing medical image data forming the second group in the storage unit.

(16) A model setting step for setting an image recognition model, a recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step, and the model setting step. The update model generation step of generating the image recognition model for the first update by learning based on the first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by A group of medical image data different from the medical image data constituting the group, and at least including a plurality of medical image data used for generating the image recognition model initially set by the model setting step. For the first update generated by the update model generation step, the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores the second group. The model setting step includes an update model evaluation request step for evaluating the image recognition model, and the model setting step satisfies a predetermined condition for the performance of the first update image recognition model evaluated by the model evaluation unit. A diagnostic support method for changing the image recognition model to be set from the setting model to the image recognition model for the first update.

(17) A model setting step for setting an image recognition model, a recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step, and the model setting step. The update model generation step of generating the image recognition model for the first update by learning based on the first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by A group of medical image data different from the medical image data constituting the group, and at least including a plurality of medical image data used for generating the image recognition model initially set by the model setting step. The model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores the second group is used for the first update generated by the update model generation step. A program for causing a computer to execute an update model evaluation request step for evaluating an image recognition model, and in the model setting step, the image recognition model for the first update evaluated by the model evaluation unit is used. A diagnostic support program that changes the image recognition model to be set from the setting model to the image recognition model for the first update when the performance satisfies a predetermined condition.

(18) From the recognition processing unit that recognizes the lesion site included in the medical image data by the image recognition model set by the model setting unit, and the setting model that is the image recognition model set by the model setting unit. This is a management method for managing a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of medical image data of the above. The update model receiving step of receiving the image recognition model for the first update generated by the generation unit from the diagnostic support device via the network, and the medical image data different from the medical image data constituting the first group Obtained from a storage unit that stores a second group that is a group of image data and includes at least a plurality of medical image data used for generating the image recognition model initially set by the model setting unit. Using the second group, the model evaluation step for evaluating the performance of the image recognition model for the first update received by the update model reception step and the evaluation result information by the model evaluation step are described above. When the performance evaluation information transmission step of transmitting to the diagnostic support device via the network and the performance of the image recognition model for the first update based on the evaluation result information satisfy a predetermined condition. , A management method in which the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update.

(19) From the recognition processing unit that recognizes the lesion site included in the medical image data by the image recognition model set by the model setting unit, and the setting model that is the image recognition model set by the model setting unit. It is a management program for managing a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of medical image data of the above. The update model receiving step of receiving the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and the medical image data constituting the first group are From a storage unit that stores a second group that is a group of different medical image data and includes at least a plurality of medical image data used to generate the image recognition model initially set by the model setting unit. Using the acquired second group, the model evaluation step for evaluating the performance of the image recognition model for the first update received by the update model reception step and the evaluation result information by the model evaluation step are provided. , A program for causing a computer to execute a performance evaluation information transmission step to be transmitted to the diagnostic support device via the network, and the performance of the image recognition model for the first update based on the evaluation result information. Is a management program in which the image recognition model set by the model setting unit is changed from the setting model to the image recognition model for the first update when the condition is satisfied in advance.

According to the present invention, a diagnostic support device capable of maintaining the recognition performance of a lesion site at a high level, an endoscope device including the diagnostic support device, a management device for managing the diagnosis support method, a diagnosis support method, a management method, and a diagnosis support program. And management programs can be provided.

100 Diagnostic support system 1A, 2A, 3A Terminal device 1B, 2B, 3B Database 11,21,31 Communication unit 10, 20, 30 Control unit 40 Network 50 Server 51 Control unit 52 Communication unit 53 Database 10A Model setting unit 10B Recognition processing Unit 10C Update model generation unit 10D Update model evaluation request unit 10E Memory control unit 51A Update model reception unit 51B Model evaluation unit 51C Performance evaluation information transmission unit 51D Medical image reception unit 51E Memory control unit

Claims (19)

The model setting section that sets the image recognition model and
Using the image recognition model set by the model setting unit, a recognition processing unit that recognizes a lesion site included in medical image data, and a recognition processing unit.
An update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of a plurality of medical image data from a setting model that is the image recognition model set by the model setting unit. ,
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is first set by the model setting unit. The first group generated by the updated model generation unit is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group including the second group. It is equipped with an update model evaluation request section that evaluates the image recognition model for update.
The model setting unit sets an image recognition model from the setting model when the performance of the first update image recognition model evaluated by the model evaluation unit satisfies a predetermined condition. A diagnostic support device that changes to an image recognition model for one update. The diagnostic support device according to claim 1.
When the performance of the image recognition model for the first update does not satisfy the above condition, the update model generation unit performs re-learning based on the first group to perform the image recognition model for the first update. Generate at least one image recognition model for the second update from
The update model evaluation request unit causes the model evaluation unit to evaluate the image recognition model for the second update generated by the update model generation unit.
When the performance of the image recognition model for the second update evaluated by the model evaluation unit satisfies the condition, the model setting unit is evaluated to have the performance satisfying the condition. A diagnostic support device that sets an image recognition model for updating. The diagnostic support device according to claim 1.
When the performance of the image recognition model for the first update does not satisfy the above condition, the update model generation unit performs re-learning based on the second group to obtain the image recognition model for the first update. Generate at least one image recognition model for the second update from
The update model evaluation request unit causes the model evaluation unit to evaluate the image recognition model for the second update generated by the update model generation unit.
When the performance of the image recognition model for the second update evaluated by the model evaluation unit satisfies the condition, the model setting unit is evaluated to have the performance satisfying the condition. A diagnostic support device that sets an image recognition model for updating. The diagnostic support device according to claim 2.
When the model setting unit sets the image recognition model for the second update, among the medical image data included in the first group, the image recognition model for the second update determines the lesion site. A diagnostic support device further comprising a storage control unit that stores medical image data for which recognition is successful in the storage unit as medical image data constituting the second group. The diagnostic support device according to claim 4.
When the performance of the image recognition model for the first update satisfies the condition, the memory control unit uses the medical image data included in the first group for medical use constituting the second group. A diagnostic support device that stores image data in the storage unit. The diagnostic support device according to any one of claims 1 to 3.
When the performance of the image recognition model for the first update satisfies the above condition, the medical image data included in the first group is stored in the storage unit as medical image data constituting the second group. A diagnostic support device further provided with a memory control unit for storing. The diagnostic support device according to any one of claims 1 to 6.
The model evaluation unit is a diagnostic support device provided in a management device connected to the diagnostic support device via a network. The diagnostic support device according to any one of claims 1 to 6.
A diagnostic support device further including the model evaluation unit. An endoscope device including the diagnostic support device according to any one of claims 1 to 8. A plurality of medical images from a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by the model setting unit and a setting model that is the image recognition model set by the model setting unit. It is a management device that manages a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group of data.
An update model receiving unit that receives the image recognition model for the first update generated by the update model generating unit from the diagnostic support device via the network, and
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is first set by the model setting unit. Model evaluation that evaluates the performance of the image recognition model for the first update received by the update model receiver using the second group acquired from the storage unit that stores at least the second group including the second group. Department and
A performance evaluation information transmission unit that transmits information on the evaluation result by the model evaluation unit to the diagnosis support device via the network is provided.
When the performance of the image recognition model for the first update based on the information of the evaluation result satisfies a predetermined condition, the image recognition model set by the model setting unit is the first from the setting model. A management device that is changed to an image recognition model for updating. The management device according to claim 10.
When the performance based on the information of the evaluation result does not satisfy the above condition, the re-learning based on the first group is performed to obtain at least one second update from the image recognition model for the first update. The image recognition model is generated by the update model generator,
The update model receiving unit receives the image recognition model for the second update from the diagnostic support device, and receives the image recognition model for the second update.
The model evaluation unit evaluates the image recognition model for the second update received by the update model receiving unit, and evaluates the image recognition model for the second update.
The performance evaluation information transmission unit transmits information on the evaluation result of the image recognition model for the second update by the model evaluation unit to the diagnosis support device.
When the performance of the image recognition model for the second update based on the information of the evaluation result satisfies the above condition, the image recognition model for the second update evaluated to have the performance satisfying the condition is satisfied. A management device set by the model setting unit. The management device according to claim 10.
When the performance based on the information of the evaluation result does not satisfy the above condition, the re-learning based on the second group is performed to obtain at least one second update from the image recognition model for the first update. The image recognition model is generated by the update model generator,
The update model receiving unit receives the image recognition model for the second update from the diagnostic support device, and receives the image recognition model for the second update.
The model evaluation unit evaluates the image recognition model for the second update received by the update model receiving unit, and evaluates the image recognition model for the second update.
The performance evaluation information transmission unit transmits information on the evaluation result of the image recognition model for the second update by the model evaluation unit to the diagnosis support device.
When the performance of the image recognition model for the second update based on the information of the evaluation result satisfies the above condition, the image recognition model for the second update evaluated to have the performance satisfying the condition is satisfied. A management device set by the model setting unit. The management device according to claim 11 or 12.
When the image recognition model for the second update is set by the model setting unit, among the medical image data included in the first group, the lesion site is determined by the image recognition model for the second update. A medical image receiving unit that receives medical image data for which recognition is successful from the diagnostic support device via the network, and
A management device further comprising a storage control unit that stores the medical image data received by the medical image receiving unit in the storage unit as medical image data constituting the second group. The management device according to claim 13.
When the performance of the first update image recognition model based on the evaluation result information satisfies the above condition, the medical image receiving unit uses the medical image data included in the first group to obtain the medical image data. Received from the diagnostic support device via the network,
The storage control unit is a management device that stores the medical image data received by the medical image receiving unit in the storage unit as medical image data constituting the second group. The management device according to any one of claims 10 to 12.
When the performance of the image recognition model for the first update based on the information of the evaluation result satisfies the above condition, the medical image data included in the first group is transmitted from the diagnostic support device via the network. Medical image receiver to receive
A management device further comprising a storage control unit that stores the medical image data received by the medical image receiving unit in the storage unit as medical image data constituting the second group. Model setting steps to set the image recognition model and
A recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step, and a recognition processing step.
With the update model generation step of generating the image recognition model for the first update by learning based on the first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by the model setting step. ,
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is initially set by the model setting step. The first group generated by the updated model generation step is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group including the second group. It has an update model evaluation request step to evaluate the image recognition model for update, and
In the model setting step, when the performance of the image recognition model for the first update evaluated by the model evaluation unit satisfies a predetermined condition, the image recognition model to be set is set from the setting model to the first. A diagnostic support method that changes to an image recognition model for one update. Model setting steps to set the image recognition model and
A recognition processing step for recognizing a lesion site included in medical image data using the image recognition model set by the model setting step, and a recognition processing step.
With the update model generation step of generating the image recognition model for the first update by learning based on the first group consisting of a plurality of medical image data from the setting model which is the image recognition model set by the model setting step. ,
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is initially set by the model setting step. The first group generated by the updated model generation step is used in the model evaluation unit that evaluates the performance of the image recognition model using the second group acquired from the storage unit that stores at least the second group including the second group. It is a program for making a computer execute the update model evaluation request step for evaluating the image recognition model for update.
In the model setting step, when the performance of the image recognition model for the first update evaluated by the model evaluation unit satisfies a predetermined condition, the image recognition model to be set is set from the setting model to the first. A diagnostic support program that changes to an image recognition model for one update. A plurality of medical images from a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by the model setting unit and a setting model that is the image recognition model set by the model setting unit. It is a management method for managing a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of data.
An update model receiving step of receiving the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is first set by the model setting unit. Model evaluation that evaluates the performance of the image recognition model for the first update received by the update model reception step using the second group acquired from the storage unit that stores at least the second group including the second group. Steps and
The performance evaluation information transmission step of transmitting the evaluation result information by the model evaluation step to the diagnostic support device via the network is provided.
When the performance of the image recognition model for the first update based on the information of the evaluation result satisfies a predetermined condition, the image recognition model set by the model setting unit is the first from the setting model. A management method that is changed to an image recognition model for updating. A plurality of medical images from a recognition processing unit that recognizes a lesion site included in medical image data by an image recognition model set by the model setting unit and a setting model that is the image recognition model set by the model setting unit. It is a management program for managing a diagnostic support device having an update model generation unit that generates an image recognition model for the first update by learning based on a first group consisting of data.
An update model receiving step of receiving the image recognition model for the first update generated by the update model generation unit from the diagnostic support device via the network, and
A plurality of medical image data that are different from the medical image data that constitutes the first group and that are used to generate the image recognition model that is first set by the model setting unit. Model evaluation that evaluates the performance of the image recognition model for the first update received by the update model reception step using the second group acquired from the storage unit that stores at least the second group including the second group. Steps and
It is a program for causing a computer to execute a performance evaluation information transmission step of transmitting information of an evaluation result by the model evaluation step to the diagnostic support device via the network.
When the performance of the image recognition model for the first update based on the information of the evaluation result satisfies a predetermined condition, the image recognition model set by the model setting unit is the first from the setting model. A management program that is changed to an image recognition model for updating.