Portable terminal device, operation method and operation program for portable terminal device, and radiation medical information system

Abstract

To provide a portable terminal device which improves a work flow when performing the work to emit a radiation, an operation method and an operation program of the portable terminal device, and a radiation medical information system.SOLUTION: In a radiation medical information system in which a terminal device installed in an operation room, a management server for performing management of various information and a mobile terminal being a portable terminal device are connected in a communicable manner to each other via a wired or wireless network, the mobile terminal 7 comprises: a patient authentication unit 42 which acquires an order and patient information to a subject patient to which a radiation is irradiated, acquires patient authentication information used for authentication of the subject patient and performs authentication of the subject patient on the basis of the patient authentication information and the patient information; an image acquisition unit 41 which acquires auxiliary tool authentication information for authenticating one or more auxiliary tools used when performing irradiation of the radiation with a camera; and an auxiliary tool authentication unit 43 which performs authentication of all the auxiliary tools on the basis of the auxiliary tool authentication information and the order.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a mobile terminal device, an operation method and an operation program for the mobile terminal device, and a radiation medical information system. [Background technology]

[0002] When performing work in which radiation is irradiated to a patient, such as radiation therapy irradiation and radiography, it is important to authenticate the patient and the auxiliary tools in order to prevent irradiating the wrong patient, irradiating the wrong body part, or imaging in the wrong position. Various systems for authenticating patients when performing work in which radiation is irradiated to a patient have been proposed (for example, Patent Document 1).

[0003] The following describes the workflow of a radiological technologist in a conventional radiation medical information system used for radiation therapy and radiography, such as that described in Patent Document 1. First, a radiological technologist (hereinafter simply referred to as "technologist") operates a terminal device in the control room and uses a client application of the radiation medical information system to search for an irradiation order or radiography order (hereinafter simply referred to as "order") for a patient to undergo radiation therapy or radiography. The technologist selects an order using the client application. This causes the client application to change the status of the order selected by the technologist to patient authentication status. Once the order status has been changed to patient authentication status, the client application displays a patient authentication screen for the patient associated with that order on the display of the terminal device in the control room.

[0004] Next, the technician goes to the patient's waiting room with a barcode reader connected to the terminal device. In the waiting room, the technician uses the barcode reader to read the barcode on which the patient's patient ID is recorded. The barcode information is sent to the terminal device. The client application on the terminal device determines whether the patient ID in the patient information linked to the order selected by the technician matches the patient ID based on the barcode read in the waiting room, and displays the result of the determination on the display of the terminal device in the control room.

[0005] The technician goes to the control room and checks the patient authentication result displayed on the screen. If the patient ID matches, the display will show that authentication is OK, and if it does not match, the display will show that authentication is not OK. If authentication is OK, a setup authentication screen will appear on the monitor in the irradiation room connected to the terminal device in the control room, showing the auxiliary tools required for irradiation.

[0006] Next, the technician takes the patient to the irradiation room, prepares the assistive device displayed on the irradiation room monitor, and uses a barcode reader to read the barcode attached to the assistive device, which records the assistive device's ID. The client application determines whether the assistive device ID displayed on the monitor matches the assistive device ID based on the read barcode. If they match, the irradiation room monitor displays a message indicating that authentication was successful; if they do not match, the irradiation room monitor displays a message indicating that authentication was unsuccessful.

[0007] Once the technician confirms that the authentication has been successful on the monitor in the irradiation room, they return to the control room and begin operating the irradiation or imaging device. If there are multiple auxiliary devices, they will read the barcodes of the auxiliary devices and check the authentication results one by one. After confirming that the authentication results for all auxiliary devices are successful, the technician will return to the control room and begin operating the irradiation or imaging device. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2021-163133 Summary of the Invention [Problem to be solved by the invention]

[0009] In conventional radiology information systems, patient IDs are read using a barcode reader connected to a terminal device in the control room. The patient ID authentication results are displayed on the terminal device in the control room, so the technician must return to the control room from the waiting room to check the authentication results. This increases the technician's workload and places a heavy burden on them. In addition, patients must wait in the waiting room while the technician returns to the control room, increasing patient waiting times.

[0010] Furthermore, during radiation therapy, the irradiation device moves during irradiation to change the irradiation position on the patient. For this reason, the monitor in the irradiation room that displays the auxiliary tools must be installed at a location away from the irradiation device. However, in order to be able to visually confirm the names of the auxiliary tools displayed on a monitor located at a distance from the irradiation device, a large monitor must be prepared. Furthermore, if the monitor is small, the technician may need to move to a position where they can check the monitor.

[0011] The present disclosure has been made in consideration of the above circumstances, and aims to improve the workflow when irradiating a patient with radiation. [Means for solving the problem]

[0012] A mobile terminal device according to the present disclosure includes a camera and at least one processor, The processor obtains an order and patient information for a patient to be irradiated with radiation; Obtain patient authentication information to be used to authenticate the target patient; Authenticating the target patient based on the patient authentication information and patient information; When the target patient is authenticated, the camera acquires assistive device authentication information for authenticating one or more assistive devices used in irradiating the radiation; Authorize all assistive devices based on assistive device authorization information and orders; Once all assistive devices have been authenticated, the authentication result is output.

[0013] In the mobile terminal device according to the present disclosure, the patient authentication information may be a barcode carried by the target patient or a patient image acquired by photographing the target patient with a camera.

[0014] In addition, in the mobile terminal device according to the present disclosure, the patient authentication information may be biometric information of the target patient.

[0015] In addition, in the mobile terminal device according to the present disclosure, the assistive tool authentication information may be a barcode attached to the assistive tool or an assistive tool image acquired by photographing the assistive tool with a camera.

[0016] In addition, in a mobile terminal device according to the present disclosure, the processor may transmit to an external device an image of the auxiliary tool obtained by photographing the changed auxiliary tool with a camera when the auxiliary tool is changed.

[0017] In addition, in the mobile terminal device according to the present disclosure, the processor generates interview information of the target patient, The medical interview information may be transmitted to an external device.

[0018] The radiation medical information system according to the present disclosure includes: a server having a database in which orders and patient information for patients who will be irradiated with radiation are registered; an irradiation device for irradiating a patient with radiation; a mobile terminal device according to the present disclosure; a terminal device that acquires an order and patient information for a target patient from the server and transmits the acquired order and patient information to the mobile terminal device; The mobile terminal device transmits the authentication result to the terminal device, Based on the authentication result, the terminal device changes the status of the order for the target patient to irradiation start status.

[0019] In the radiological medical information system according to the present disclosure, the terminal device may prohibit the irradiation device from irradiating radiation until the order is changed to the irradiation start status.

[0020] In addition, the radiation medical information system according to the present disclosure further includes a detection device that detects the presence of a mobile terminal device in an irradiation room in which an irradiation device is installed, When the detection device detects the presence of a mobile terminal device in the irradiation room, irradiation of radiation by the irradiation device may be prohibited.

[0021] In addition, the radiation medical information system according to the present disclosure further includes a detection device that detects the presence of a mobile terminal device in an irradiation room in which an irradiation device is installed, When the detection device detects the presence of a mobile terminal device in the irradiation room, the presence may be notified by voice.

[0022] The radiological medical information system according to the present disclosure further includes a trained model that is constructed by performing machine learning using, as training data, arrangement information regarding the arrangement of auxiliary tools according to the order and patient information input to the mobile terminal device, and that outputs arrangement information of auxiliary tools according to the patient corresponding to the input patient information when the order and patient information are input; Acquire, in a mobile terminal device, the order of the target patient and the placement information of the assistive device according to the patient information of the target patient; The trained model may be used to derive placement information for assistive devices according to the acquired target patient's order and patient information.

[0023] The method for operating a mobile terminal device according to the present disclosure includes: acquiring an order and patient information for a patient to be irradiated with radiation; Obtain patient authentication information to be used to authenticate the target patient; Authenticating the target patient based on the patient authentication information and patient information; When the target patient is authenticated, assistive device authentication information for authenticating one or more assistive devices to be used when irradiating the patient is acquired by a camera of the mobile terminal device; Authorize all assistive devices based on assistive device authorization information and orders; Once all assistive devices have been authenticated, the authentication result is output.

[0024] The operation program for causing a computer to execute the operation method of the mobile terminal device according to the present disclosure includes a procedure for obtaining an order and patient information for a patient to be irradiated with radiation; a procedure for obtaining patient authentication information to be used to authenticate a target patient; a step of authenticating the target patient based on the patient authentication information and the patient information; When the target patient is authenticated, acquiring assistive device authentication information for authenticating one or more assistive devices to be used when irradiating the patient with radiation using a camera of the mobile terminal device; Authorize all assistive devices based on assistive device authorization information and orders; When all the assistive devices have been authenticated, the computer executes a procedure for outputting the authentication result. [Effects of the Invention]

[0025] According to the present disclosure, the workflow when irradiating a patient with radiation can be improved. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic diagram of a radiation medical information system according to a first embodiment; [Figure 2] FIG. 1 is a diagram showing the hardware configuration of a terminal device. [Figure 3] FIG. 1 shows a functional configuration of a terminal device. [Figure 4] Diagram showing the hardware configuration of a mobile device [Figure 5]Diagram showing the functional configuration of a mobile device [Figure 6] 1 is a flowchart showing the processing performed in the first embodiment. [Figure 7] 1 is a flowchart showing the processing performed in the first embodiment. [Figure 8] Diagram showing the list of orders [Figure 9] Figure showing the patient authentication screen [Figure 10] Figure showing the assistive device authentication screen [Figure 11] Figure showing the assistive device authentication screen [Figure 12] Figure showing the assistive device authentication screen [Figure 13] Figure showing the assistive device authentication screen [Figure 14] Diagram showing the medical interview screen [Figure 15] Schematic configuration diagram of a radiation medical information system according to a second embodiment [Figure 16] FIG. 10 is a diagram illustrating a hardware configuration of a management server according to a third embodiment. [Figure 17] Diagram showing the functional configuration of the management server [Figure 18] A diagram showing an example of training data [Figure 19] Flowchart showing learning processing [Figure 20] Flowchart showing the process of deriving placement information [Figure 21] A diagram showing a display screen for assistive device placement information. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. FIG. 1 is a schematic diagram of a radiation medical information system according to a first embodiment. The radiation medical information system 1 according to the first embodiment is a system for performing radiation therapy or capturing radiological images of a patient, who is the subject, based on an order from a doctor in a medical department using a known ordering system. Note that both radiation therapy and capturing radiological images involve irradiating the patient with radiation. For this reason, in the following description, radiation therapy and capturing radiological images will be referred to as "radiation irradiation."

[0028] As shown in FIG. 1, the radiation medical information system 1 is configured by connecting a terminal device 5 installed in an operation room 2, a management server 6 that manages various types of information, and a mobile terminal 7, which is a portable terminal device according to this embodiment, via a wired or wireless network 10 in a manner that allows communication between them. Note that technicians who irradiate patients with radiation perform various tasks in the operation room 2, a waiting room 3 where patients wait, and an irradiation room 4 where radiation is irradiated to patients. Note that the irradiation room 4 serves as a treatment room when performing radiation therapy on patients and as an imaging room when taking radiological images of the patient. An irradiation device 8 for irradiating patients with radiation is installed in the irradiation room 4.

[0029] The management server 6 is a system for managing information such as appointment schedules and diagnostic records in the radiology department of a hospital, and is a computer configured to include a database 6A. Examples of the management server 6 include a Radiology Information System (RIS) that manages irradiation orders and imaging orders, and a Picture Archiving and Communication System (PACS). Patient information is registered in the database 6A. The patient information includes patient attribute information (e.g., patient ID, patient name, phonetic spelling, gender, date of birth, age, height, weight, blood type, and facial photograph), medical history, medical history, and other information related to the patient, such as data on previously taken radiation images. The database 6A also stores orders for radiation therapy and radiation imaging for patients. The orders include the area to be irradiated with radiation and the radiation irradiation direction. The database 6A also stores information on auxiliary devices to be used during treatment or imaging (i.e., during radiation irradiation) in connection with the treatment and imaging orders. Examples of auxiliary devices include types of beds, pillows, boluses, molds, and tubes. When using an assisting tool, there are body positions suitable for the assisting tool, such as supine position, prone position, lateral position, etc. Therefore, in this embodiment, the information on the assisting tool also includes information on the body position.

[0030] The bolus is an auxiliary device that adjusts the spread of radiation according to the depth from the body surface of the area to be treated with radiation. The mold is an auxiliary device that fixes the patient's position. The toe-bus is an auxiliary device that limits the range of radiation exposure to the patient through a through-hole.

[0031] The terminal device 5 is a computer used for various processes for radiation irradiation. Fig. 2 is a diagram showing the hardware configuration of the terminal device 5. As shown in Fig. 2, the terminal device 5 includes a CPU (Central Processing Unit) 11, non-volatile storage 13, and memory 16 as a temporary storage area. The terminal device 5 also includes a display 14 such as an LCD display, input devices 15 such as a keyboard and a mouse, and a network I / F (Interface) 17 connected to the network 10. The CPU 11, storage 13, display 14, input devices 15, memory 16, and network I / F 17 are connected to a bus 18.

[0032] Storage 13 is realized by a hard disk drive (HDD), a solid state drive (SSD), a flash memory, etc. Storage 13 as a storage medium stores client application program 12 to be executed by terminal device 5. CPU 11 reads client application program 12 from storage 13, loads it into memory 16, and executes the loaded client application program 12.

[0033] The client application program 12 is stored in an externally accessible state in a storage device or network storage of a server computer (not shown) connected to the network 10, and is downloaded and installed in the terminal device 5 upon request. Alternatively, the client application program 12 is recorded on a recording medium such as a DVD (Digital Versatile Disc) or a CD-ROM (Compact Disc Read Only Memory) and distributed, and is installed in the terminal device 5 from the recording medium.

[0034] Fig. 3 is a diagram showing the functional configuration of the terminal device 5. As shown in Fig. 3, the terminal device 5 includes a status change unit 21, a patient information search unit 22, an assistive device information search unit 23, a display control unit 24, a communication control unit 25, and an irradiation permission unit 26. When the CPU 11 executes the client application program 12, the CPU 11 functions as the status change unit 21, the patient information search unit 22, the assistive device information search unit 23, the display control unit 24, the communication control unit 25, and the irradiation permission unit 26. Details of the processes performed by the status change unit 21, the patient information search unit 22, the assistive device information search unit 23, the display control unit 24, the communication control unit 25, and the irradiation permission unit 26 will be described later.

[0035] The mobile terminal 7 is a computer carried by a technician for use in various processes for radiation irradiation. FIG. 4 illustrates the hardware configuration of the mobile terminal 7. As shown in FIG. 4, the mobile terminal 7 includes a CPU 31, non-volatile storage 33, and memory 36 as a temporary storage area. The mobile terminal 7 also includes a display 34 such as a liquid crystal display, a touch panel input device 35, and a network I / F 37 connected to the network 10. The mobile terminal 7 also includes a camera 39. The CPU 31, storage 33, display 34, input device 35, memory 36, network I / F 37, and camera 39 are connected to a bus 38. The CPU 31 is an example of a processor in the present disclosure.

[0036] Storage 33 is realized by an HDD, SSD, flash memory, etc. Storage 33 as a storage medium stores mobile application program 32 to be executed by mobile terminal 7. CPU 31 reads mobile application program 32 from storage 33, expands it in memory 36, and executes the expanded mobile application program 32.

[0037] The camera 39 takes a photograph in response to a photographing instruction from the input device 35, and obtains a photographed image.

[0038] The mobile application program 32 is stored in a state accessible from the outside in a storage device or network storage of a server computer (not shown) connected to the network 10, and is downloaded and installed on the mobile terminal 7 upon request.

[0039] Fig. 5 is a diagram showing the functional configuration of the mobile terminal 7. As shown in Fig. 5, the mobile terminal 7 includes an image acquisition unit 41, a patient authentication unit 42, an assistive device authentication unit 43, a display control unit 44, a communication control unit 45, and a medical interview information generation unit 46. When the CPU 31 executes the mobile application program 32, the CPU 31 functions as the image acquisition unit 41, the patient authentication unit 42, the assistive device authentication unit 43, the display control unit 44, the communication control unit 45, and the medical interview information generation unit 46. Details of the processes performed by the image acquisition unit 41, the patient authentication unit 42, the assistive device authentication unit 43, the display control unit 44, the communication control unit 45, and the medical interview information generation unit 46 will be described later.

[0040] The irradiation device 8 includes a radiation source such as an X-ray source for irradiating a patient with radiation, and a control device for controlling the irradiation of radiation from the radiation source. The control device is connected to the network 10. When the irradiation device 8 is a radiographic imaging device, the irradiation device 8 includes a radiation detector for generating a radiographic image of the patient.

[0041] The network 10 is a wired or wireless local area network that connects various devices in the hospital, including the terminal device 5, the management server 6, the mobile terminal 7, and the irradiation device 8.

[0042] Next, the processing performed in the first embodiment will be described. Figures 6 and 7 are flowcharts showing the processing performed in the first embodiment. It is assumed that an order for radiation irradiation for a patient is transmitted from the management server 6 to the terminal device 5 and stored in the storage 13 of the terminal device 5. First, the technician carries the mobile terminal 7 and moves to the operation room 2, where he operates the terminal device 5 to search for orders that have arrived at the terminal device 5. This causes the display control unit 24 of the terminal device 5 to display a list of orders on the display 14 (step ST1). It is also possible to have the mobile terminal 7 authenticate the technician who will be performing the radiation irradiation work before the processing starts.

[0043] FIG. 8 is a diagram showing a list of displayed orders. As shown in FIG. 8, the order list 50 includes a patient ID 51, a patient name 52, a phonetic reading 53, and a gender 54. When the technician selects a target patient to be irradiated from the order list 50 (step ST2), the status change unit 21 changes the status of the order for the selected target patient to a patient authentication status (step ST3). Next, the patient information search unit 22 searches the management server 6 for patient information on the selected patient (step ST4). In addition, the auxiliary tool information search unit 23 searches the management server 6 for information on auxiliary tools to be used for radiation irradiation based on the selected order (step ST5).

[0044] The patient information includes the patient ID of the selected patient. The auxiliary tool information includes an auxiliary tool ID indicating the type of auxiliary tool, such as the bed, posture, pillow, bolus, mold, and toe-bus, to be used during radiation irradiation of the selected patient. The auxiliary tool information may include an image of the auxiliary tool and / or an image showing the usage status of the auxiliary tool. Then, the communication control unit 25 transmits the retrieved patient information and auxiliary tool information to the mobile terminal 7 (information transmission: step ST6).

[0045] The communication control unit 45 of the mobile terminal 7 receives the patient information and assistive device information transmitted from the terminal device 5 (information reception: step ST7) and stores it in the storage 33. Next, the display control unit 44 of the mobile terminal 7 displays a patient authentication screen on the display 34 (step ST8). FIG. 9 is a diagram showing the patient authentication screen. As shown in FIG. 9, the patient authentication screen 60 includes patient information 61 and a facial image 62 of the patient. This completes the technician's work in the operation room 2 for the time being.

[0046] Next, the technician carries the mobile terminal 7 and moves to the waiting room 3 where the patient is waiting, calls the patient in the waiting room 3, and takes a picture of the barcode on which the patient's patient ID is recorded using the camera 39 of the mobile terminal 7. As a result, the image acquisition unit 41 of the mobile terminal 7 acquires the patient barcode image as patient authentication information (step ST9), and the patient authentication unit 42 authenticates the target patient based on whether the patient ID included in the patient information acquired from the terminal device 5 matches the patient ID read from the patient barcode image (step ST10).

[0047] Instead of using a barcode for patient authentication, the face of the target patient may be photographed by camera 39 to obtain a facial image of the target patient as patient authentication information, and patient authentication may be performed based on whether the obtained facial image of the target patient matches a facial image included in the patient information. Also, patient biometric information such as the patient's fingerprints, iris, and palm pattern may be managed in management server 6, and the biometric information may be included in the patient information. Mobile terminal 7 may be provided with a function to acquire the biometric information of the target patient, and the biometric information may be used as patient authentication information to perform patient authentication.

[0048] If the authentication is OK (step ST10: OK), the display control unit 44 displays information that the authentication is OK on the display 34 (step ST11). If the authentication is NG (step ST10: NG), the display control unit 44 displays information that the authentication is NG on the display (step ST12). The information that the authentication is OK or NG can be the text "Authentication OK" or "Authentication NG", or an image that indicates that the authentication is OK or NG. Note that the authentication OK or NG may be notified by voice.

[0049] If authentication is not successful, this is because the patient is incorrect, so the technician takes measures such as confirming the patient and reselecting the patient, and then photographs the barcode on which the patient ID of the reselected patient is recorded using the camera 39 of the mobile terminal 7. The mobile terminal 7 repeats the processing of steps ST9 and ST10 until authentication is successful in step ST10. If authentication is successful, the technician moves from the waiting room 3 to the irradiation room 4 together with the patient.

[0050] If the authentication is successful, the display control unit 44 of the mobile terminal 7 displays an assistive device authentication screen on the display 34 (step ST13). FIG. 10 is a diagram showing the assistive device authentication screen. As shown in FIG. 10, the assistive device authentication screen 70 includes a list 71 of the types of bed, position, pillow, bolus, mold, and toube used when irradiating the authenticated patient with radiation, as assistive device information. The list 71 includes an assistive device name 72 and an assistive device type 73. The assistive device authentication screen 70 also includes a change button 74 and an interview button 75, which will be described later. In the list 71 shown in FIG. 10, the bed type is A, the position type is supine, the pillow type is a round pillow, the bolus type is A, the mold type is B, and the toube type is A.

[0051] Note that an image of the selected assistive tool may be displayed when one assistive tool name is selected from the assistive tool names 72 in the list 71 on the assistive tool authentication screen 70. For example, as shown in Fig. 11, when a body position is selected as the assistive tool name 72, an image 76 indicating that the user is in a supine position may be displayed.

[0052] The technician prepares the assistive device by referring to the assistive device authentication screen 70, and takes a picture of the barcode on which the assistive device ID assigned to the assistive device is recorded using the camera 39 of the mobile terminal 7. As a result, the image acquisition unit 41 of the mobile terminal 7 acquires the assistive device barcode image as assistive device authentication information (step ST14), and the assistive device authentication unit 43 authenticates the assistive device based on whether the assistive device ID included in the assistive device information acquired from the terminal device 5 matches the assistive device ID read from the assistive device barcode image (step ST15).

[0053] Note that posture authentication may be performed by having a technician visually check the patient's posture, taking a photograph of the barcode corresponding to the visually checked posture in a list that associates postures with barcodes using the camera 39 of the mobile terminal 7, and using the assistive tool barcode image acquired by photographing as the assistive tool authentication information. Alternatively, the patient's posture may be photographed using the camera 39, and posture authentication may be performed based on whether the photographed image of the patient's posture matches the image of the posture included in the assistive tool information.

[0054] In addition, when multiple assistive devices are used as in this embodiment, the technician selects each of the assistive devices displayed on the assistive device authentication screen 70 one by one to authenticate the assistive device. To do this, the technician first uses the camera 39 to photograph the barcode of the first assistive device to authenticate the assistive device. If the authentication is NG (step ST15: NG), the display control unit 44 displays information indicating that the authentication is NG on the display (step ST16). In this case, since the assistive device may be incorrect, the technician can take measures such as checking the assistive device and replacing it. In this case, the technician photographs the barcode attached to the replaced assistive device, and uses the acquired assistive device barcode image as assistive device authentication information to repeat the processes of steps ST14 and ST15 until step ST15 is OK.

[0055] If the authentication is OK (step ST15: OK), the display control unit 44 displays information indicating that the authentication is OK on the display 34 (step ST17). The information indicating whether the authentication is OK or not may be the text "Authentication OK" or "Authentication NG", or an image indicating that the authentication is OK or not. Note that the information indicating whether the authentication is OK or not may be notified by voice.

[0056] For an assistive device that has been authenticated successfully, the display control unit 44 may change the text color or background color of the assistive device name and / or type of assistive device on the assistive device authentication screen 70. For example, if the authentication has been successful for the bed and body position, the background color of the assistive device type 73 for the bed and body position may be made different from the background color of the other assistive devices, as shown in Fig. 12. In Fig. 12, the different background color is indicated by hatching.

[0057] Incidentally, the registration of assistive devices is performed at the stage of irradiation planning, which is performed before the patient is irradiated with radiation. For example, in radiation therapy, the patient is irradiated with radiation multiple times over several days, and during this time, the registered assistive devices may need to be changed or added due to changes in the patient's body shape, etc. For this reason, it may be possible to change the assistive devices and register the changed assistive devices when authenticating the assistive devices.

[0058] In this case, the technician selects the assistive device to be changed in the list 71 on the assistive device authentication screen 70 and selects the Change button 74. This causes the display control unit 44 to display an assistive device change screen 80 on the display 34 of the mobile terminal 7, as shown in FIG. 13. The assistive device change screen 80 includes a selection menu 81 for the assistive device to be changed, an image display area 82 for the assistive device to be changed, and a Register button 83. The selection menu 81 is a pull-down menu, and when changing the bed, multiple diagnoses can be selected from the pull-down menu. FIG. 13 shows a state in which Bed B is selected. Furthermore, the image display area 82 displays an image of Bed B captured by the technician using the camera 39. After changing the assistive device, the technician selects the Register button 83. The communication control unit 45 of the mobile terminal 7 transmits information about the changed assistive device to the terminal device 5. The terminal device 5 transmits information about the changed assistive device to the management server 6. The management server 6 registers information about the changed assistive device for the patient in the database 6A.

[0059] Furthermore, when performing radiation therapy, radiation is irradiated to a patient over several days, and it is important to observe changes in the patient's physical condition during this time. For this reason, a technician or nurse may be allowed to input the patient's physical condition and vital signs (pulse rate, respiratory rate, blood pressure, body temperature, etc.) into the mobile terminal 7 each time radiation is irradiated. In this case, when the technician selects the medical interview button 75 on the assistive device authentication screen 70, the display control unit 44 displays a medical interview screen 86 on the display 34 of the mobile terminal 7, as shown in FIG. 14. The medical interview screen 86 allows the pulse rate, respiratory rate, blood pressure, body temperature, and findings of the patient to be irradiated to be input using the input device 35.

[0060] When the technician selects the registration button 87 after inputting the medical interview information, the medical interview information generation unit 46 generates medical interview information based on the input results. Then, the communication control unit 45 of the mobile terminal 7 transmits the generated medical interview information to the terminal device 5. The terminal device 5 transmits the medical interview information to the management server 6. The management server 6 registers the medical interview information for the patient in the database 6A.

[0061] Following step ST17, the assistive device authentication unit 43 determines whether authentication has been successful for all assistive devices (step ST18). If step ST18 is negative, the process returns to step ST14, and the processes from step ST14 onwards are repeated until step ST18 is positive. If step ST18 is positive, the display control unit 44 displays on the display 34 that all have been authenticated successfully (step ST19), and the communication control unit 45 of the mobile terminal 7 transmits an authentication result indicating that the assistive devices have been authenticated successfully to the terminal device 5 (step ST20).

[0062] The communication control unit 25 of the terminal device 5 receives the authentication result (step ST21), and the irradiation permission unit 26 outputs information that radiation is permitted based on the authentication result (permission information output: step ST22). As a result, the status change unit 21 changes the status of the order for the target patient from patient authentication status to irradiation start status (step ST23). The communication control unit 25 also transmits to the mobile terminal 7 information that the status has been changed to irradiation start status (irradiation start information transmission: step ST24). The communication control unit 45 of the mobile terminal 7 receives the irradiation start information (step ST25), and the display control unit 44 notifies the technician that irradiation is possible by, for example, displaying information on the display 34 (step ST26), and the process ends. As a result, the technician starts irradiating the patient with radiation.

[0063] Information that the status of the order for the target patient has been changed to an irradiation start status may be transmitted from the terminal device 5 to the irradiation device 8. In this case, the irradiation device 8 may prohibit irradiation of the patient by disabling the operation of the radiation source until it receives the information on the irradiation start status, and may control the radiation source so that it can be operated when it receives the information on the irradiation start status.

[0064] In this way, in this embodiment, patient authentication is performed on the mobile terminal 7. This eliminates the need for the technician to return from the waiting room to the control room to check the patient authentication result, thereby reducing the burden on the technician. Furthermore, since the patient does not have to wait while the technician returns to the control room, the patient's waiting time can be reduced.

[0065] In this embodiment, authentication of the auxiliary tools is performed on the mobile terminal 7. This eliminates the need for a large monitor for checking the auxiliary tools in the irradiation room 4. Furthermore, the technician does not need to travel to a location where a monitor is located in the irradiation room 4 to check the authentication result, which reduces the burden on the technician.

[0066] Furthermore, when auxiliary equipment is changed or added during radiation therapy, conventionally, the change and registration of the auxiliary equipment must be recorded on paper in the irradiation room 4, and after imaging or irradiation, the change must be made on the terminal device 5 in the control room 2 while looking at the paper record. Also, it was necessary to take an image of the changed auxiliary equipment with a camera in the irradiation room 4, connect the camera to the terminal device 5 in the control room 2, and send the image to the terminal device 5.

[0067] In this embodiment, the auxiliary tool can be changed and registered on the mobile terminal 7. Therefore, the auxiliary tool can be changed and registered while checking the auxiliary tool and the patient's position in the irradiation room 4. In addition, by taking a picture of the auxiliary tool using the camera 39 of the mobile terminal 7, the image of the changed auxiliary tool can be transmitted to the terminal device 5 while remaining in the irradiation room 4. Therefore, according to this embodiment, the technician's work can be performed efficiently.

[0068] Furthermore, when checking the physical condition and vital signs of a patient undergoing radiation therapy, conventionally, it was necessary to ask the patient about the results of the medical interview in the waiting room 3 or irradiation room 4, write them down on paper, and then move to the operation room 2 to input the written contents into the terminal device 5. In this embodiment, the results of the medical interview can be registered on the mobile terminal 7 and sent to the terminal device 5, eliminating the need to input the results of the medical interview into the terminal device 5. Furthermore, it is possible to prevent omissions when inputting the results of the medical interview into the terminal device 5.

[0069] Next, a second embodiment of the present disclosure will be described. Fig. 15 is a schematic configuration diagram of a radiological information system according to the second embodiment of the present disclosure. Note that in Fig. 15, the same components as those in Fig. 1 are assigned the same reference numerals, and detailed description thereof will be omitted. As shown in Fig. 15, the radiological information system 1A according to the second embodiment differs from the first embodiment in that a mobile terminal 7 includes a transmitter 7A, a receiver 4A is installed in an irradiation room 4 to receive a signal transmitted by the transmitter 7A of the mobile terminal 7, and the transmitter 7A and receiver 4A detect the presence of the mobile terminal 7 in the irradiation room 4. Note that the transmitter 7A and receiver 4A are examples of a detection device of the present disclosure.

[0070] In this embodiment, the patient and the assistive device are authenticated using the mobile terminal 7. For this reason, there is a possibility that the technician will leave the mobile terminal 7 behind in the irradiation room 4. In particular, when arranging the assistive device in the irradiation room 4, the technician will need to use both hands to perform the work, and therefore the technician will need to temporarily place the mobile terminal 7 inside the irradiation room 4. For this reason, there is a possibility that the mobile terminal 7 will be left behind in the irradiation room 4. If radiation is irradiated to the patient while the mobile terminal 7 has been left behind, there is a possibility that the mobile terminal 7 will malfunction due to ionizing radiation during irradiation.

[0071] In the second embodiment, while the receiver 4A is detecting a signal transmitted from the transmitter 7A of the mobile terminal 7, the receiver 4A transmits the detection signal to the terminal device 5 via the network 10. When the detection signal is transmitted from the receiver 4A, the terminal device 5 instructs the irradiation device 8 to prohibit driving of the radiation source. Then, when the detection signal is no longer transmitted from the receiver 4A, the terminal device 5 instructs the irradiation device 8 to enable driving of the radiation source.

[0072] As a result, in the second embodiment, the radiation source is prohibited from being driven while the mobile terminal 7 is in the irradiation chamber 4. This prevents the mobile terminal 7 from being damaged due to irradiation of the mobile terminal 7 with radiation.

[0073] In addition, while the receiver 4A is detecting the signal transmitted by the transmitter 7A of the mobile terminal 7, a warning sound may be output from the mobile terminal 7 to notify that the mobile terminal 7 is inside the irradiation chamber 4.

[0074] Note that the mobile terminal 7 may detect that it is being held by a person, and if it does not detect that the mobile terminal 7 is being held by a person, the mobile terminal 7 may issue an instruction to the irradiation device 8 to prohibit driving of the radiation source. Here, a gyro sensor is provided in the mobile terminal 7. When the mobile terminal 7 is held by a person, the mobile terminal 7 moves slightly, and the gyro sensor can detect this movement. Therefore, it is possible to detect that the mobile terminal 7 is being held by a person based on the output of the gyro sensor. In this case, the gyro sensor is an example of a detection device of the present disclosure.

[0075] Next, a third embodiment of the present disclosure will be described. Note that the schematic configuration of a radiation medical information system according to the third embodiment is the same as that of the first and second embodiments, and therefore detailed description thereof will be omitted.

[0076] Here, the method of positioning auxiliary tools when irradiating a patient with radiation varies depending on the irradiation content, such as the radiation irradiation method, the patient's imaging method, the imaging region, and the patient's condition, and the time required to position the auxiliary tools also varies depending on the irradiation content. In radiation therapy, radiation is irradiated to the patient over several days, and during this time, the position of the auxiliary tools may shift due to changes in the patient's body shape, etc., making it necessary to reposition the auxiliary tools. When repositioning the auxiliary tools, fine adjustments are made based on the results of the reference imaging performed before irradiation, which often takes time. Furthermore, in radiation therapy, some irradiation methods require high-precision positioning of the auxiliary tools, and fine adjustments to the position of the auxiliary tools may be made each time based on the results of the reference imaging, which may take time. This type of work is extremely time-consuming for the technician.

[0077] In the third embodiment, the time required for setup, which differs depending on the irradiation content, and changes in the placement of auxiliary tools are input into the mobile terminal 7 as placement information, and the placement information corresponding to the order and patient information is transmitted to the management server 6 and stored.The stored information is then used to construct a trained model that outputs placement information of auxiliary tools corresponding to the patient based on the input of the order and patient information.The constructed trained model is then used to derive placement information of auxiliary tools corresponding to the order and patient information of the target patient and provide it to the technician.

[0078] Fig. 16 is a diagram showing the hardware configuration of the management server 6 in the third embodiment. As shown in Fig. 16, the management server 6 includes a CPU 91, non-volatile storage 93, and memory 96 as a temporary storage area. The management server 6 also includes a display 94 such as an LCD display, an input device 95 such as a keyboard and a mouse, and a network I / F 97 connected to the network 10. The CPU 91, storage 93, display 94, input device 95, memory 96, and network I / F 97 are connected to a bus 98.

[0079] The storage 93 is realized by an HDD, an SSD, a flash memory, etc. The storage 93 as a storage medium stores a learning program 92A and a derivation program 92B executed by the management server 6. The CPU 91 reads the learning program 92A and the derivation program 92B from the storage 93, expands them in the memory 96, and executes the expanded learning program 92A and the derivation program 92B.

[0080] The learning program 92A and the derivation program 92B are stored in an externally accessible state in a storage device or network storage of a server computer (not shown) connected to the network 10, and are downloaded and installed in the management server 6 upon request. Alternatively, they are recorded on a recording medium such as a DVD or CD-ROM and distributed, and are installed in the management server 6 from the recording medium.

[0081] Fig. 17 is a diagram showing the functional configuration of the management server 6. As shown in Fig. 17, the management server 6 includes an information acquisition unit 101, a learning unit 102, a derivation unit 103, and an information transmission unit 104. When the CPU 91 executes the learning program 92A, the CPU 91 functions as the information acquisition unit 101 and the learning unit 102. When the CPU 91 executes the derivation program 92B, the CPU 91 functions as the derivation unit 103 and the information transmission unit 104.

[0082] The information acquisition unit 101 accumulates the order, patient information, and placement information by acquiring the order, patient information, and placement information input from the mobile terminal 7 via the network 10 and storing them in the storage 93. The information acquisition unit 101 also acquires the order and patient information about the patient who will be irradiated with radiation, transmitted from the mobile terminal 7.

[0083] The learning unit 102 uses the accumulated orders, patient information, and placement information as training data to train a neural network, and constructs a trained model that outputs placement information of assistive devices when the orders and patient information are input.

[0084] In this embodiment, a convolutional neural network (hereinafter referred to as CNN), which is one of multilayer neural networks, is used as the neural network.

[0085] FIG. 18 is a diagram showing an example of training data. As shown in FIG. 18, training data 110 includes input data 111 including an order and patient information, and correct answer data 112 including placement information. The order included in the input data 111 includes information such as the irradiation site, irradiation method, number of irradiations, irradiation dose, irradiation radiation quality, and irradiation equipment. The patient information included in the input data 111 includes information such as the patient's age, sex, height, and weight. The correct answer data 112 includes, as placement information, information such as whether or not an auxiliary tool is used, the type of auxiliary tool used, the time required to position the auxiliary tool, whether or not the auxiliary tool is changed, and the number of irradiations if the auxiliary tool is changed.

[0086] The learning unit 102 inputs input data 111 included in the training data 110 into the CNN to output placement information. The learning unit 102 then derives the difference between the output placement information and the placement information included in the correct answer data 112 as a loss. The learning unit 102 then trains the CNN so as to reduce the derived loss. The learning unit 102 repeatedly trains the CNN using different training data 110 until the derived loss becomes equal to or less than a predetermined threshold. In this way, a trained model that outputs placement information of an assistive device when an order and patient information are input is constructed. Note that the trained model may be constructed by repeatedly performing learning a predetermined number of times.

[0087] The derivation unit 103 uses the trained model 103A constructed by the training unit 102 to output the auxiliary tool placement information for the order and patient information regarding the patient who will be irradiated with radiation, which was acquired by the information acquisition unit 101.

[0088] The information transmitting unit 104 transmits the placement information derived by the derivation unit 103 to the mobile terminal 7 via the network 10 .

[0089] Next, the processing performed in the third embodiment will be described. Fig. 19 is a flowchart showing the learning processing. First, the learning unit 102 receives input of training data from the information acquisition unit 101 (step ST31), and performs CNN training using the training data (step ST32). As a result, a trained model 103A is constructed.

[0090] 20 is a flowchart showing the process of deriving placement information. First, the derivation unit 103 receives input of the order and patient information from the information acquisition unit 101 (step ST41), and derives placement information of the assistive device using the trained model 103A (step ST42). Then, the information transmission unit 104 transmits the derived placement information to the mobile terminal 7 via the network 10 (step ST43), and the process ends.

[0091] The mobile terminal 7 receives the assistive tool placement information transmitted from the management server 6, and the display control unit 44 of the mobile terminal 7 displays the received placement information on the display 34. Fig. 21 is a diagram showing a display screen of the assistive tool placement information displayed on the mobile terminal 7. In the display screen 120 of the assistive tool placement information shown in Fig. 21, the use of an assistive tool is "Yes", the types of assistive tools are "Bed A, Supine Position, Round Pillow, Bolus A, Mold B, Two-Buse A", the time required for placement is "10 minutes", whether the assistive tool will be changed is "Yes", and the number of irradiations if changed is "3rd time".

[0092] By referring to the displayed auxiliary tool placement information, the technician can take into account the time required to place the auxiliary tools and make adjustments in advance regarding the occupancy time of the irradiation room 4 and the number of personnel required to set up the auxiliary tools. In addition, because the auxiliary tool placement information can be obtained in advance, the time required to fine-tune the auxiliary tools can be reduced. This allows for more efficient irradiation of the patient with radiation.

[0093] In each of the above embodiments, the hardware structure of the processing units that perform various processes, such as the status change unit 21, patient information search unit 22, auxiliary tool information search unit 23, display control unit 24, communication control unit 25, and irradiation permission unit 26 of the terminal device 5, the image acquisition unit 41, patient authentication unit 42, auxiliary tool authentication unit 43, display control unit 44, communication control unit 45, and medical interview information generation unit 46 of the mobile terminal 7, and the information acquisition unit 101, learning unit 102, derivation unit 103, and information transmission unit 104 of the management server 6, can be various processors as shown below. The various types of processors mentioned above include, as mentioned above, CPUs, which are general-purpose processors that execute software (programs) and function as various processing units, as well as dedicated electrical circuits such as GPUs (Graphics Processing Units), FPGAs (Field Programmable Gate Arrays), and other programmable logic devices (PLDs), which are processors whose circuit configuration can be changed after manufacture, and ASICs (Application Specific Integrated Circuits), which are processors with a circuit configuration designed specifically to execute specific processes.

[0094] A single processing unit may be configured with one of these various processors, or may be configured with a combination of two or more processors of the same or different types (for example, a combination of multiple FPGAs or a combination of a CPU and an FPGA). Also, multiple processing units may be configured with a single processor.

[0095] Examples of configuring multiple processing units with a single processor include, first, a form in which one processor is configured with a combination of one or more CPUs and software, and this processor functions as multiple processing units, as typified by computers such as client and server. Second, a form in which a processor is used to realize the functions of an entire system including multiple processing units with a single IC (Integrated Circuit) chip, as typified by systems on chips (SoCs). In this way, various processing units are configured using one or more of the above-mentioned various processors as a hardware structure.

[0096] Furthermore, more specifically, the hardware structure of these various processors can be an electric circuit that combines circuit elements such as semiconductor elements. [Explanation of symbols]

[0097] 1 Radiation Medical Information System 2 Control room 3. Waiting Room 4 Irradiation room 4A receiver 5 Terminal Devices 6 Management Server 6A Database 7. Mobile devices 7A transmitter 8 Irradiation device 10 Network 11,31,91 CPU 12 Client Application Programs 13,33,93 Storage 14,34,94 display 15,35,95 input devices 16,36,96 memory 17,37,97 Network I / F 18, 38, 98 buses 21 Status Change Section 22 Patient Information Search Department 23 Assistive device information search unit 24,44 Display control unit 25,45 Communication control unit 26 Irradiation permission section 39 Camera 41 Image acquisition unit 42 Patient Authentication Department 43 Assistive Device Certification Department 46 Interview information generation department 50 Order List 51 Patient ID 52 Patient name 53 Furigana 54 Gender 60 Patient authentication screen 61 Patient Information 62 facial images 70 Assistive device authentication screen List of 71 types 72 Auxiliary device name 73 Types of assistive devices 74 Change button 75 Medical Interview Button 76 images 80 Assistive device change screen 81 Selection Menu 82 Image display area 83 Registration button 86 Interview screen 87 Registration button 101 Information acquisition department 102 Learning Department 103 Derivation part 103A Pre-trained model 104 Information Transmission Unit 110 Teacher Data 111 Input Data 112 Correct data 120 Display screen for assistive device placement information

Claims

1. A mobile terminal device, A camera and at least one processor; The processor: Obtaining orders and patient information for patients who will receive radiation; acquiring patient authentication information to be used to authenticate the target patient; authenticating the target patient based on the patient authentication information and the patient information; When the target patient is authenticated, the camera acquires auxiliary tool authentication information for authenticating one or more auxiliary tools used when irradiating the radiation; authenticating all of the assistive devices based on the assistive device authentication information and the order; When all of the assistive devices are authenticated, output the authentication result; When the assisting tool is changed, the mobile terminal device transmits to an external device an assisting tool image obtained by photographing the changed assisting tool with the camera.

2. The mobile terminal device according to claim 1 , wherein the patient authentication information is a barcode carried by the target patient or a patient image acquired by photographing the target patient with the camera.

3. The mobile terminal device according to claim 1 , wherein the patient authentication information is biometric information of the target patient.

4. The mobile terminal device according to claim 1 , wherein the assistive tool authentication information is a barcode attached to the assistive tool or an assistive tool image acquired by photographing the assistive tool with the camera.

5. the processor generates medical interview information for the subject patient; The mobile terminal device according to claim 1 , wherein the medical interview information is transmitted to an external device.

6. a server having a database in which orders and patient information for patients to be irradiated with radiation are registered; an irradiation device for irradiating a patient with radiation; A mobile terminal device according to any one of claims 1 to 5; a terminal device that acquires an order and patient information for a target patient from the server and transmits the acquired order and patient information to the mobile terminal device; a trained model that outputs, when an order and patient information are input, arrangement information of the assistive device according to a patient corresponding to the input patient information, the trained model being constructed by performing machine learning using arrangement information regarding arrangement of the assistive device according to the order and the patient information input in the mobile terminal device as training data; the mobile terminal device transmits the authentication result to the terminal device; the terminal device changes the status of the order for the target patient to an irradiation start status based on the authentication result; acquiring, in the mobile terminal device, the arrangement information of the assisting device according to the order of the target patient and the patient information of the target patient; A radiological medical information system that uses the trained model to derive placement information of the auxiliary device according to the order and patient information of the acquired target patient.

7. The radiation medical information system according to claim 6 , wherein the terminal device prohibits the irradiation device from irradiating the radiation until the order is changed to the irradiation start status.

8. a detection device that detects the presence of the mobile terminal device in an irradiation room in which the irradiation device is installed; 8. The radiation medical information system according to claim 6, wherein when the detection device detects the presence of the portable terminal device in the irradiation room, the irradiation device is prohibited from irradiating the radiation.

9. a detection device that detects the presence of the mobile terminal device in an irradiation room in which the irradiation device is installed; 8. The radiation medical information system according to claim 6, wherein when the detection device detects the presence of the portable terminal device in the irradiation room, the presence is notified by voice.

10. A method for operating a mobile terminal device, comprising: Obtaining orders and patient information for patients who will receive radiation; acquiring patient authentication information to be used to authenticate the target patient; authenticating the target patient based on the patient authentication information and the patient information; When the target patient is authenticated, assistive device authentication information for authenticating one or more assistive devices to be used when irradiating the radiation is acquired by a camera of the mobile terminal device; authenticating all of the assistive devices based on the assistive device authentication information and the order; When all of the assistive devices are authenticated, output the authentication result; A method for operating a mobile terminal device, which transmits to an external device an assisting tool image obtained by photographing the changed assisting tool with the camera when the assisting tool is changed.

11. An operating program for causing a computer to execute an operating method for a mobile terminal device, A procedure for obtaining orders and patient information for patients to be treated with radiation; obtaining patient authentication information used to authenticate the target patient; authenticating the target patient based on the patient authentication information and the patient information; When the target patient is authenticated, acquiring, by a camera of the mobile terminal device, assistive device authentication information for authenticating one or more assistive devices to be used when irradiating the radiation; authenticating all of the assistive devices based on the assistive device authentication information and the order; a step of outputting an authentication result when all of the assistive devices are authenticated; and a procedure for transmitting to an external device an image of the assisting tool obtained by photographing the changed assisting tool with the camera when the assisting tool is changed.

Images