Nuclear medicine department iodine-131 treatment dedicated ward management virtual system based on digital twinning

Abstract

The invention provides a digital twinborn nuclear medicine department iodine-131 treatment-dedicated ward management virtual system, and belongs to the technical field of medical informatization, and the system comprises a model construction module which is used for constructing a virtual hospital model; the medical data management module is used for visually presenting the patient and the correspondingly input patient information through the three-dimensional scene of the virtual hospital model; the remote interaction module is used for establishing a communication channel between the medical staff and the target patient so as to perform online ward round on the target patient; a teaching animation provided based on the virtual hospital model is preset in the diagnosis and treatment process management module, and the teaching animation displays the diagnosis and treatment process at a preset observation view angle. The system has the beneficial effects that an integrated virtual system covering'process simulation-radiation protection education-doctor-patient non-contact interaction 'is constructed by deeply integrating a digital twin technology and a nuclear medicine treatment scene, the treatment compliance and the patient education effect are improved, the ward turnover efficiency is improved, and the radiation protection cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical information technology, and in particular to a virtual system for managing iodine-131 treatment wards in nuclear medicine departments based on digital twins. Background Art

[0002] Iodine-131 therapy is the main means of postoperative nuclear medicine treatment for thyroid cancer. It is an oral liquid iodine-131 drug that uses its targeted accumulation in thyroid tissue to release beta rays to destroy thyroid follicular cells, thereby inhibiting thyroid hormone synthesis and achieving the treatment of hyperthyroidism (hyperthyroidism) or differentiated thyroid cancer.

[0003] Currently, the iodine-131 therapy ward management and patient education system has the following limitations:

[0004] (1) Cognitive impairment in the treatment process: In clinical practice, thyroid cancer patients need to complete complex procedures such as iodine-131 administration, radiation monitoring, and SPECT / CT scanning in an isolation ward. After taking iodine-131, patients need to be hospitalized in a dedicated isolation ward for 5-7 days. Traditional education methods mainly use paper manuals, oral explanations, or short videos to understand the treatment process. They cannot intuitively display the time-space separation of operation nodes, such as the isolation time after taking the medicine and the waste disposal process. The content is fragmented and poorly interactive, leading to patient deviations in implementation.

[0005] (2) Radiation exposure of medical staff: In ward management, medical staff mainly rely on manual inspections to complete ward rounds and radiation monitoring, which is not only inefficient, but also long-term exposure to high radiation environments may cause health risks.

[0006] (3) Inefficient utilization of ward resources: Existing medical virtual systems mostly focus on surgical simulation or imaging diagnosis training, while immersive experience tools for nuclear medicine treatment have not yet been popularized. The few cases that have attempted to apply 3D modeling only provide static scene displays, lacking dynamic process simulation, real-time interaction, and situational popularization of radiation protection knowledge, making it difficult to meet patients' cognitive needs for the entire treatment process. Due to the lack of a virtual rehearsal system, patients often extend their hospitalization time due to unfamiliarity with the process (such as failure to complete the examination on time), exacerbating the pressure on ward turnover. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins.

[0008] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0009] A digital twin-based virtual system for managing iodine-131 treatment wards in nuclear medicine departments, including:

[0010] Model building module, used to build a virtual hospital model;

[0011] a medical data management module, connected to the model building module, for inputting patient information and visually presenting the patient and the corresponding input patient information through the three-dimensional scene of the virtual hospital model;

[0012] A remote interaction module, connected to the medical data management module, is used for medical staff to establish a communication channel with the target patient so as to conduct online ward rounds on the target patient;

[0013] A diagnosis and treatment process management module is pre-installed with a teaching animation provided based on the virtual hospital model, and the teaching animation displays the diagnosis and treatment process from a preset observation perspective.

[0014] Preferably, the model building module includes:

[0015] Scanning unit, used to conduct on-site scanning of nuclear medicine wards and obtain scanning information;

[0016] A modeling unit is connected to the scanning unit and is used to perform modeling based on the scanning information to obtain the virtual hospital model.

[0017] Preferably, the model building module further includes:

[0018] The cutting and modularization unit is connected to the modeling unit and is used to perform cutting and modularization processing on the virtual hospital model.

[0019] Preferably, the virtual hospital model provides predefined paths, which at least include an iodine-131 treatment patient path, a SPECT / CT examination patient path, a medical care-only channel, and a radioactive material channel.

[0020] Preferably, the medical data management module includes:

[0021] An information entry unit, used to enter patient information according to a predefined text configuration file and generate a target configuration file;

[0022] A visualization unit is connected to the information entry unit and is used to read the text content of the target configuration file and visualize the patient and the corresponding entered patient information through the ward information board in the three-dimensional scene of the virtual hospital model according to the read text content.

[0023] Preferably, the remote interaction module includes:

[0024] The communication establishment unit is used for medical staff to link the host operated by the medical staff with the sub-machine operated by the target patient according to the patient information of the target patient, establish a real-time voice communication channel, and conduct online ward rounds for the target patient.

[0025] Preferably, the diagnosis and treatment process management module includes:

[0026] A process selection unit, wherein a plurality of the diagnosis and treatment processes are preset in the process selection unit, and each of the diagnosis and treatment processes is preset with a plurality of diagnosis and treatment nodes to be executed in sequence;

[0027] The process teaching unit is used to play the corresponding diagnosis and treatment process animation through the three-dimensional scene of the virtual hospital model according to the diagnosis and treatment process selected by the patient.

[0028] Preferably, the process teaching unit includes:

[0029] A node loading subunit is used to sequentially load the diagnosis and treatment nodes of the diagnosis and treatment process, and switch the interactive interface and spatial positioning identifier through the three-dimensional scene of the virtual hospital model;

[0030] The node execution subunit is connected to the node loading subunit and is used to switch to the preset observation angle to play the corresponding teaching animation and synchronously start voice and text prompts when the patient completes the position confirmation and interactive operation of the current diagnosis and treatment node;

[0031] The node loading subunit is further used to restore the viewing angle and reset the scene state after the teaching animation is played, and load the next diagnosis and treatment node.

[0032] Preferably, it also includes:

[0033] The electronic certificate generation module is used to generate electronic discharge certificates.

[0034] Preferably, the electronic certificate generation module is used to generate the electronic discharge certificate when it is detected that the patient has completed all preset diagnosis and treatment nodes of the diagnosis and treatment process and has reached the discharge criteria.

[0035] The advantages or beneficial effects of the technical solution of the present invention are:

[0036] The present invention deeply integrates digital twin technology with nuclear medicine treatment scenarios to build an integrated virtual system covering "process simulation-radiation protection education-contactless interaction between doctors and patients", providing simple and convenient online ward rounds and hospital management operations, reducing the radiation exposure threats faced by medical staff in traditional offline ward rounds, and reducing radiation protection costs; at the same time, it provides teaching animations based on the virtual hospital model, giving full play to the subjective initiative of popular science, and helping patients understand the complex nuclear medicine department's diagnosis and treatment processes from multiple dimensions such as simulated medical conversations, medical animations, route guidance, online ward rounds, doctor consultations, and examination processes, reducing patients' anxiety and confusion caused by unfamiliarity with the process, and improving treatment compliance and patient education effectiveness. In addition, this is also conducive to patients better following the diagnosis and treatment process, improving ward turnover efficiency, and optimizing the hospital's use of ward resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural block diagram of a virtual system for managing iodine-131 treatment wards in the nuclear medicine department based on digital twins in a preferred embodiment of the present invention;

[0038] Figure 2 This is a structural block diagram of a model building module in a preferred embodiment of the present invention;

[0039] Figure 3 A floor plan of a virtual hospital model in a preferred embodiment of the present invention;

[0040] Figure 4 This is a structural block diagram of a medical data management module in a preferred embodiment of the present invention;

[0041] Figure 5 This is a structural block diagram of a remote interaction module in a preferred embodiment of the present invention;

[0042] Figure 6 A schematic diagram of a process flow of real-time voice communication in a preferred embodiment of the present invention;

[0043] Figure 7 This is a structural block diagram of the diagnosis and treatment process management module in a preferred embodiment of the present invention;

[0044] Figure 8 This is a structural block diagram of a process teaching unit in a preferred embodiment of the present invention;

[0045] Figure 9 A schematic diagram of a process flow for teaching treatment nodes in a treatment process in a preferred embodiment of the present invention;

[0046] Figure 10 This is a screenshot of the teaching animation corresponding to the diagnosis and treatment process in the preferred embodiment of the present invention;

[0047] Figure 11This is a structural block diagram of a virtual system for managing iodine-131 treatment wards in the nuclear medicine department based on digital twins in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0051] In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins is provided. The purpose of the system of the present invention is to:

[0052] First, provide a standardized and modular three-dimensional model design of the overall construction layout of the nuclear medicine department;

[0053] Second, as an online management system, it enables doctors to manage beds and conduct ward rounds online, assisting doctors in contactless ward rounds and managing patient beds;

[0054] Third, educate patients about the iodine-131 hospitalization treatment and SPECT / CT examination process in the nuclear medicine department.

[0055] like Figure 1 As shown, the system includes:

[0056] Model building module 1, used to build a virtual hospital model;

[0057] The medical data management module 2 is connected to the model building module 1 and is used to input patient information and visualize the patient and the corresponding input patient information through the three-dimensional scene of the virtual hospital model;

[0058] The remote interaction module 3 is connected to the medical data management module 2 and is used for medical staff to establish a communication channel with the target patient so as to conduct online ward rounds on the target patient;

[0059] The diagnosis and treatment process management module 4 is pre-installed with a teaching animation based on a virtual hospital model, and the teaching animation displays the diagnosis and treatment process from a preset observation perspective.

[0060] Specifically, the system of the present invention includes a model construction module 1, a medical data management module 2, a remote interaction module 3, and a diagnosis and treatment process management module 4. The system aims to use digital twin technology to achieve standardized, modular three-dimensional model design of nuclear medicine sites, providing a convenient management and treatment experience for medical staff and patients, while also helping patients understand the complex treatment process.

[0061] Model Construction Module 1 is used to construct a virtual hospital model based on the actual site of the nuclear medicine department's iodine-131 treatment ward. The virtual hospital model's 3D scene is a highly realistic hospital environment model, including detailed information and layout of the iodine-131 treatment ward, SPECT / CT examination room, PET / CT examination room, contrast agent injection room, waiting room, and more. This enables standardized and modular 3D model design for nuclear medicine facility design. This 3D scene enables contactless online ward rounds and animated teaching.

[0062] Medical Data Management Module 2 provides a user interface for medical staff to enter basic patient information, such as name, age, gender, and medical history. This information can be automatically imported through an interface with the hospital's information management system. After entering the information, it is associated with the 3D scene of the virtual hospital model. Within the virtual hospital model, the patient character appears in the corresponding ward, and relevant patient information is displayed on a specific icon or symbol. Medical staff can click on the patient icon or symbol to view detailed patient information, such as medical history, examination reports, and treatment progress.

[0063] Remote Interaction Module 3 uses network communication technology to establish a communication channel between medical staff and target patients. A communication portal is provided in the virtual system. During ward rounds, medical staff can select target patients and initiate online ward round requests. The module supports audio and video communication, allowing medical staff to communicate with patients in real time through cameras and microphones to understand their conditions and needs. Examination reports, treatment plans, and other information can also be presented to patients through screen sharing. Audio and video information and communication content during ward rounds are recorded and saved for subsequent review and analysis. Through online, contactless ward rounds, the threat of radiation exposure to medical staff is reduced.

[0064] The diagnosis and treatment process management module 4 provides teaching animations based on the actual diagnosis and treatment process of iodine-131 treatment in the nuclear medicine department through the three-dimensional scene of the virtual hospital model. The animation content should include the entire process of the patient from admission to discharge, such as simulated medical consultation dialogues, medical consultation animations, route guidance, online ward rounds, doctor consultations, examination procedures, and other links. The teaching animation can select appropriate preset observation perspectives, such as the patient's perspective, the medical staff's perspective, and the third person's perspective to display each step and detail of the diagnosis and treatment process. Text descriptions and voice explanations are added to the teaching animation to help patients better understand the diagnosis and treatment process. The prepared teaching animation is preset in the diagnosis and treatment process management module 4 and associated with the virtual hospital model. Patients can view the teaching animation through the virtual system to understand the diagnosis and treatment process. At the same time, the system can also automatically recommend relevant teaching animations based on the patient's diagnosis and treatment progress.

[0065] The system, using digital twins, allows doctors to conduct simple and convenient online ward rounds and hospital management operations, reducing the risk of radiation exposure to radioactive substances such as iodine-131 during traditional offline ward rounds and protecting the health of medical staff. In this virtual system, medical staff can gain a more comprehensive and intuitive understanding of patient distribution and condition information, improving management efficiency and decision-making accuracy.

[0066] For patients, the system can give full play to the subjective initiative of popular science. Through simulated medical conversations, medical animations, route guidance, online rounds, doctor consultations, examination procedures and other methods, patients can better understand the complex nuclear medicine medical process, reduce their anxiety and confusion, and improve their medical experience.

[0067] As a preferred embodiment, wherein Figure 2 As shown, the model building module 1 includes:

[0068] Scanning unit 11, used to perform on-site scanning of the nuclear medicine ward to obtain scanning information;

[0069] The modeling unit 12 is connected to the scanning unit 11 and is used to perform modeling based on the scanning information to obtain a virtual hospital model.

[0070] Specifically, the model construction module 1 adopts the Unity engine and takes the nuclear medicine ward of the hospital as a template. Through on-site scanning, modeling and modification, a three-dimensional virtual hospital model is obtained. The layout of the virtual hospital model corresponds one-to-one to the actual layout of the nuclear medicine ward of the hospital.

[0071] As a preferred embodiment, wherein Figure 2 As shown, the model building module 1 also includes:

[0072] The cutting and modularization unit 13 is connected to the modeling unit 12 and is used to perform cutting and modularization processing on the virtual hospital model.

[0073] Specifically, based on the virtual hospital model obtained based on the above modeling, it is cut and modularized.

[0074] The following rules are followed when assembling the virtual hospital modules modeled previously:

[0075] 1. The lobby of the nuclear medicine department is set as the center of the overall building structure, and a waiting room is extended on one side. The waiting room serves as the entrance for patients to enter the nuclear medicine department from the elevator.

[0076] 2. Two parallel routes extend from the lobby to separate day patients and inpatients, and a nurse station is provided at the starting point of each route.

[0077] 3. For the sake of overall aesthetics, a row of five doctors’ offices and two patient rooms are arranged on both sides of the same-day and inpatient routes, and an additional consultation room is added for inpatients.

[0078] 4. Add an equipment room at the end of the parallel routes. To ensure easy access for medical staff, the equipment rooms are located on both sides of the two routes. SPECT / CT patients and inpatients undergoing iodine-131 therapy will be placed in the right-hand SPECT / CT room, while PET / CT patients will be placed in the left-hand PET / CT room.

[0079] 5. Add a waiting room between the two machine rooms and a toilet between the waiting rooms. Fill the empty space with corridors and injection rooms.

[0080] 6. Add an iodine administration room and a radioactive waste storage room in the vacant space in the corridor of the inpatient area, and the corridors of the two will be shared with patients at different times on the same day.

[0081] 7. Add a passage for medical staff on the periphery to connect the machine room and injection room.

[0082] The design isolates patients undergoing outpatient PET / CT and SPECT / CT examinations prior to injection. Inpatients undergoing iodine-131 treatment are placed in separate wards after consultation. Medical staff can bypass the three radiation zones through dedicated corridors, administering injections and operating equipment through isolation windows. This design complies with the general principles of the "Guiding Opinions on the Construction and Management of Nuclear Medicine Departments," ensuring clear functional zoning to prevent cross-contamination, ensuring adequate radiation protection with clearly visible signage, and providing rationally designed circulation and comprehensive safety features, including radiation monitors.

[0083] Specifically, the general principles include:

[0084] (1) Minimize the external exposure level and the probability of contamination in the workplace;

[0085] (2) Maintain low radiation levels in the imaging equipment workplace to avoid interference with image quality;

[0086] (3) In nuclear medicine diagnosis and treatment work areas, entrances and exits to controlled areas should be equipped with security measures such as door locks and one-way doors (access control). Personnel and radioactive drug passages should be reasonably designed to limit the free flow of patients or examinees, and ensure that workers and the public in the workplace are protected from unnecessary exposure.

[0087] (4) A sanitary passage room should be designed at the exit of the filling and dosing room to conduct radioactive contamination detection.

[0088] The layout of the iodine-131 treatment ward primarily adheres to the general principles of the "Guiding Opinions on the Construction and Management of Nuclear Medicine Departments." The wards are meticulously designed and standardized to address the specific needs of thyroid cancer patients, such as isolated movement routes, radiation protection levels, and psychological support. In the model, physical isolation between doctor-patient corridors is achieved to reduce radiation exposure risks for medical staff.

[0089] As a preferred embodiment, the virtual hospital model provides predefined paths, which at least include an iodine-131 treatment patient path, a medical imaging examination patient path, a medical care-only channel, and a radioactive material transportation channel.

[0090] Specifically, such as Figure 3 The floor plan of the virtual hospital model is shown. Patient Path for I-131 Treatment: After entering the Nuclear Medicine Department via the upper elevator, patients proceed directly to the radiation isolation treatment area through a pre-set one-way door. On the fifth day of the treatment cycle, they proceed through a dedicated passage to the SPECT / CT room for a full-body I-131 scan.

[0091] Patient path for medical imaging examinations: Patients undergoing SPECT / CT and PET / CT examinations enter the nuclear medicine department, complete pre-treatment procedures such as doctor consultation, blood sugar test, and contrast agent injection along the office corridor, and then enter the designated imaging examination room through the downward passage.

[0092] Dedicated medical passage: An independent medical passage is set up in the right area of ​​the space layout to achieve physical isolation of the doctor-patient traffic flow.

[0093] Radioactive material channel: For the radioactive waste generated in the contrast agent injection room and the iodine-131 treatment room, a dedicated transportation channel is set up and connected to the patient exit to ensure the temporal and spatial separation of radioactive materials and personnel channels.

[0094] In this embodiment, the risk of cross contamination is reduced by establishing a spatial topological separation model between the medical care channel and the radioactive material channel.

[0095] As a preferred embodiment, wherein Figure 4 As shown, the medical data management module 2 includes:

[0096] The information input unit 21 is used to input patient information according to a predefined text configuration file and generate a target configuration file;

[0097] The visualization unit 22 is connected to the information entry unit 21 and is used to read the text content of the target configuration file and visualize the patient and the corresponding entered patient information through the ward information board in the three-dimensional scene of the virtual hospital model according to the read text content.

[0098] Specifically, in actual operation, medical staff complete the entry of patient information by modifying the predefined text configuration file in the background.

[0099] A predefined text configuration file is a pre-formatted and pre-defined document that specifies the specific fields and formatting requirements for entering patient information. Medical staff can modify this file in the backend based on actual circumstances, entering each patient's detailed information, such as name, age, diagnosis, length of stay, ward number, and bed, into the corresponding fields to generate a target configuration file.

[0100] In the 3D scene of the virtual hospital model, each ward is equipped with a ward information plate. The visualization unit 22 reads the text content of the target configuration file through DoorPlateManager.cs and associates the read patient information with the ward information in the virtual hospital model for visualization, allowing medical staff to quickly understand the diagnosis and treatment progress of each patient in the ward.

[0101] As a preferred embodiment, wherein Figure 5 As shown, the remote interaction module 3 includes:

[0102] The communication establishment unit 31 is used for medical staff to link the host (A1, A2, ..., An) operated by the medical staff with the sub-machine (B1, B2, ..., Bn) operated by the target patient according to the patient information of the target patient, establish a real-time voice communication channel, and conduct online ward rounds for the target patient.

[0103] Specifically, in this embodiment, the host computer can be a terminal device deployed in a doctor's office or nurse's station. Medical staff use this terminal to access the system interface. Once in the interface, medical staff can perform activities from the first-person perspective of a doctor or nurse in a 3D virtual hospital model. During these activities, medical staff can modify bed and machine call information in the backend and conduct online ward rounds via a real-time voice system.

[0104] The slave device can be a terminal device deployed in each ward. The patient operates the system interface. Once in the interface, the patient moves around in the 3D virtual hospital model from the patient's first-person perspective, understanding the hospital layout. During the activity, the patient can select various diagnosis and treatment procedures in the background or view instructional animations based on system recommendations to understand the iodine-131 treatment and SPECT / CT examination processes.

[0105] When medical staff conduct online ward rounds, they use the Photonvoice technology in the Unity engine to link the host operated by the medical staff and the sub-machine operated by the patient through a third-party server. When the doctor and the patient are ready at the same time, the voice line is connected and the voice is turned on.

[0106] like Figure 6 The flowchart of real-time voice communication is shown, which includes Unity application, software development kit (SDK) and software defined real-time network (SD-RTN). The real-time voice system of the present invention is described in detail as follows:

[0107] For voice calls, the system first calls the VoiceConnection method to pair the patient with the healthcare provider, ensuring each call is one-to-one and avoiding communication confusion. During the pairing process, a third-party server verifies and matches the host and handset information. Once verification and matching are successful, the host and handset establish a preliminary connection.

[0108] After the pairing is completed, the SpeakerFactory method is called to initialize the real-time communication engine (RTCEngine) and send a connection invitation to the corresponding slave according to the set channel attribute (joinChannelByKey) configured by the host.

[0109] When the target patient receives a channel invitation, a pop-up message will appear on the handset, informing the patient that a medical professional has requested an online ward round. The patient can then accept or decline the request.

[0110] If the patient accepts the request, the slave device returns a confirmation message to the Unity engine. Upon receiving this confirmation, the third-party server establishes a real-time voice communication channel between the healthcare provider's main device (A1, A2, ..., An) and the target patient's slave device (B1, B2, ..., Bn), enabling low-latency, two-way voice communication.

[0111] Once a real-time voice communication channel is established, medical staff and patients can communicate with each other. Medical staff can use the host's microphone to ask patients about their condition and physical condition, while patients can also use the handset's microphone to share their feedback and needs.

[0112] When the online ward round is over, the medical staff or patient can end the communication by pressing the corresponding button on the host or slave. The communication establishment unit 31 will send a request to end the communication to the third-party server. Upon receiving the request, the third-party server will disconnect the real-time voice communication channel between the medical staff host and the target patient's slave, and the online ward round process will end.

[0113] Furthermore, during the communication process, the audio and video information and communication content are recorded and saved. After the medical staff and patients leave the channel, the real-time communication engine is destroyed to release system resources.

[0114] As a preferred embodiment, wherein Figure 7 As shown, the diagnosis and treatment process management module 4 includes:

[0115] A process selection unit 41, wherein a plurality of diagnosis and treatment processes are preset in the process selection unit, and each diagnosis and treatment process is preset with a plurality of diagnosis and treatment nodes to be executed in sequence;

[0116] The process teaching unit 42 is used to play the corresponding diagnosis and treatment process animation through the three-dimensional scene of the virtual hospital model according to the diagnosis and treatment process selected by the patient.

[0117] In this embodiment, the diagnosis and treatment process at least includes an iodine-131 treatment medication process and a SPECT / CT scanning examination process.

[0118] As a preferred embodiment, wherein Figure 8 As shown, the process teaching unit 42 includes:

[0119] The node loading subunit 421 is used to sequentially load the diagnosis and treatment nodes of the diagnosis and treatment process, and switch the interactive interface and spatial positioning mark through the three-dimensional scene of the virtual hospital model;

[0120] The node execution subunit 422 is connected to the node loading subunit 421 and is used to switch to the preset observation angle to play the corresponding teaching animation and synchronously start the voice and text prompts when the patient completes the position confirmation and interactive operation of the current diagnosis and treatment node;

[0121] The node loading subunit 421 is also used to restore the viewing angle and reset the scene state after the teaching animation is played, and load the next diagnosis and treatment node.

[0122] Specifically, in the system's initial menu interface, patients can select the process they want to experience from multiple preset medical processes based on their needs. Once the selection is completed, the system will load the corresponding 3D scene, and the patient will enter the virtual medical process from a first-person perspective.

[0123] Once patients enter the process, they follow the signs on the floor and the instructions in the upper left corner of the screen to complete each step of the consultation. For example, the instructions will guide patients to a specific area to take iodine-131.

[0124] When performing complex procedures such as taking iodine-131, patients watch first-person animations to understand the specific execution content, including important information such as how to take the drug and dosage.

[0125] At the same time, during the virtual medical consultation, non-player-controlled doctor and nurse characters will appear in the virtual hospital model. These characters will inform the patient of the basic situation of the consultation and ask about the medical history through preset voice.

[0126] Since iodine-131 treatment is a long process that requires 5 days of hospitalization, after completing the day's process and returning to the ward, the patient can choose to learn about the next day's medical treatment process or examination process, or can choose to have a real-time conversation with the doctor, that is, online rounds.

[0127] The system of the present invention adopts a chain data structure to store diagnosis and treatment process nodes, which is convenient for system management and operation. Figure 9 The process of diagnosis and treatment animation is shown. The following is the specific process execution process:

[0128] Process Initialization: When a patient first enters the process, the system will load a 3D scene guide for the first diagnosis and treatment node. This guide includes a user interface (UI) and spatial positioning markers. The UI provides the patient with an entry point and displays relevant information, while the spatial positioning markers help the patient accurately locate their position in the virtual scene and determine the next course of action.

[0129] Process execution mechanism: After the patient completes the location confirmation and interactive operation of the current node, the system will automatically execute the following operation sequence:

[0130] a. Switch to the preset viewing angle to play the process animation: The system switches the viewing angle to the preset viewing angle and starts playing the process animation related to the current step. The animation will show the specific operation process of the step in detail, so that the patient can understand it more intuitively;

[0131] b. Synchronous activation of voice prompts and subtitles: While the animation is playing, the system will simultaneously activate voice prompts and subtitles. The voice prompts will explain the operations in the animation in detail, and the subtitles will present key information in text form to ensure that patients do not miss important content;

[0132] c. Restore the patient's primary perspective and reset the scene state. After the animation and voice prompts are finished, the system will restore the patient's primary perspective, allowing the patient to regain control of their actions. At the same time, the system will reset the scene state and prepare the patient for the next step.

[0133] d. Load the next diagnosis and treatment node data: Finally, the system will load the data of the next diagnosis and treatment node, including the 3D scene guidance of the node, relevant operation instructions, etc. The patient can continue to complete the subsequent treatment steps according to the new instructions, so that the patient can complete the treatment in sequence according to the instructions. The diagnosis and treatment animation screenshot is as follows: Figure 10 shown.

[0134] The system uses the Unity engine to create a digital twin of the hospital. Within the 3D virtual hospital model, standardized routes within the nuclear medicine department are designed to separate radiation-contaminated areas from other areas of activity. The system provides four workflows, one for each type of patient visit and the other for internal hospital management. This improves operational efficiency and ensures the safety of patients and medical staff.

[0135] In addition, the system also provides scientific education services to patients visiting the Nuclear Medicine Department. During the patient's consultation, the system will display relevant knowledge and information about nuclear medicine in a timely manner to help patients better understand their condition and treatment process.

[0136] As a preferred embodiment, wherein Figure 11 As shown, it also includes:

[0137] The electronic certificate generation module 5 is used to generate an electronic discharge certificate.

[0138] Specifically, when the termination conditions of the diagnosis and treatment process are met, the electronic certificate generation module 5 will automatically generate an electronic discharge certificate.

[0139] As a preferred embodiment, the electronic certificate generation module 5 is used to generate an electronic discharge certificate when it is detected that the patient has completed all preset diagnosis and treatment nodes of the diagnosis and treatment process and has reached the discharge criteria.

[0140] Specifically, the termination condition of the diagnosis and treatment process is that the patient completes all preset diagnosis and treatment nodes of the diagnosis and treatment process and meets the discharge criteria.

[0141] After a patient is admitted to the hospital, the system continuously monitors their treatment progress, capturing their progress and relevant examination data at each treatment node in real time. The treatment process terminates when the system detects that the patient has completed all pre-set treatment nodes and all examination data indicate they meet discharge criteria.

[0142] Once the termination conditions of the diagnosis and treatment process are met, an electronic discharge certificate is automatically generated. The certificate contains the patient's basic information (such as name, gender, age, hospitalization number, etc.), diagnosis and treatment information (such as admission date, discharge date, diagnosis results, treatment process, etc.), and discharge instructions.

[0143] The electronic discharge certificate is presented in common electronic document formats, such as PDF or XML. To ensure the security and authenticity of the electronic discharge certificate, it can be digitally signed or encrypted.

[0144] Furthermore, the system may also include:

[0145] The scene management module is responsible for loading and switching scenes in various functional areas of the nuclear medicine department, such as the waiting room, examination room, injection room, etc.

[0146] The interactive control module implements ray interaction and UI interaction based on the XR Interaction Toolkit and supports mainstream VR operation logic;

[0147] The process management module controls the sequence and operation logic of the actual ward treatment process, allowing users to complete the entire process including admission registration, ward rounds, oral iodine-131, iodine-131 SPECT / CT scanning, and discharge radiation dose rate detection;

[0148] The UI display module provides different types of users (medical staff and patients) with different operation prompts and learning content to achieve differentiated design.

[0149] The system of the present invention is developed using the Unity engine and can be run on a Windows system as an exe file. It provides users with an interactive virtual experience of the hospitalization process for iodine-131 treatment in the nuclear medicine department and the SPECT / CT examination process, conducts hospitalization management in the nuclear medicine department, and assists in teaching and training and patient science education.

[0150] The user enters the system by opening the exe file. After the user enters the system, the system automatically loads the core scenes and resources and presents the main interface for the user to select "Doctor Mode" or "Patient Mode".

[0151] On the main interface, you can select a process, including: Iodine-131 Hospitalization Examination, Doctor's Rounds, SPECT / CT Examination, and PET / CT Examination.

[0152] After selecting a procedure, the user enters the nuclear medicine department lobby of the virtual hospital model from a first-person perspective. At each subsequent procedure node, the system provides audio and graphic prompts to guide the user through the process. After the operation is completed, the system provides process feedback.

[0153] Enter the operating instructions:

[0154] Mouse: used to control the rotation of the viewing angle, with a base speed of 2m / s;

[0155] E key: used to confirm interactive actions;

[0156] WASD keys or keypad arrow keys: control forward, backward, left, and right movement, with a base speed of 2m / s; Spacebar: controls jumping;

[0157] Shift key: control running, base speed 4m / s;

[0158] Spacebar: controls jumping, base distance 1.2m;

[0159] Using the third-person action system (based on ThirdPersonController.cs), you can walk, rotate the view, run, and jump.

[0160] The interaction panel component is used as the interactive system, and the interactive interface is suspended in the scene, fitting the environment and facilitating user operation.

[0161] The complete operation process of the system of the present invention includes the following steps:

[0162] a. Initialization of modular system architecture: The system loads functional area scenes such as the waiting room, injection room, and examination room, initializes each module, and then enters the system main interface.

[0163] b. Examination process management: The system divides the entire process into the following parts based on the standard process of nuclear medicine examination:

[0164] b1. Registration: collecting and registering user information;

[0165] b2. Medical history inquiry stage: Understand the patient's medical history through voice or text guidance;

[0166] b3. Ward rounds on the day of admission: Communicate with patients through real-time voice chat and conduct online ward rounds;

[0167] b4. On the second day of hospitalization, the patient started taking a therapeutic dose of I-131 and underwent another online ward round.

[0168] b5. On the third and fourth days of hospitalization, follow up on the patient's condition by telephone rounds;

[0169] b6. Early in the morning of the fifth day after admission, the patient will be notified by phone that they will undergo a pre-discharge SPECT / CT scan. The patient will be required to enter the examination room and complete the virtual scan process.

[0170] b7. Before discharge: Patients must go to the corridor for residual radiation testing;

[0171] b8. Leaving the hospital: The system will summarize the process and give corresponding prompts.

[0172] Throughout the entire inspection process, each step is equipped with detailed instructional information and interactive prompts. The process management module monitors the user's status in real time to ensure that the entire process meets regulatory requirements and provides assistance when necessary.

[0173] In addition, the system background can record operation data, which can be used for training performance evaluation and content optimization feedback, thereby realizing continuous iteration and upgrading of the system.

[0174] This system, designed as a teaching tool for medical staff training and patient education, uses 3D immersive simulation to help users fully understand the hospitalization process for iodine-131 treatment and the SPECT / CT examination process. This document is intended to help users quickly get started with the system, experience virtual medical examination scenarios, and improve learning efficiency and experience quality.

[0175] The advantages or beneficial effects of adopting the above technical solution are: the present invention deeply integrates digital twin technology with nuclear medicine iodine-131 treatment scenarios to build an integrated virtual system covering "process simulation-radiation protection education-contactless interaction between doctors and patients", providing simple and convenient online ward rounds and hospital management operations, reducing the radiation exposure threats faced by medical staff by traditional offline ward rounds, and reducing radiation protection costs; at the same time, based on the virtual hospital model, it provides teaching animations, gives full play to the subjective initiative of popular science, and helps patients understand the complex nuclear medicine department diagnosis and treatment process from multiple dimensions such as simulated medical conversations, medical animations, route guidance, online ward rounds, consulting doctors, and examination processes, reduces patients' anxiety and confusion caused by unfamiliarity with the process, and improves treatment compliance and patient education effects. In addition, this is also conducive to patients better following the diagnosis and treatment process, improving ward turnover efficiency, and optimizing the hospital's use of ward resources.

[0176] The above are only preferred embodiments of the present invention and do not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of this specification and illustrations should be included in the protection scope of the present invention.

Claims

1. A virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins, characterized by: include: Model building module, used to build a virtual hospital model; a medical data management module, connected to the model building module, for inputting patient information and visually presenting the patient and the corresponding input patient information through the three-dimensional scene of the virtual hospital model; A remote interaction module, connected to the medical data management module, is used for medical staff to establish a communication channel with the target patient so as to conduct online ward rounds on the target patient; A diagnosis and treatment process management module is pre-installed with a teaching animation provided based on the virtual hospital model, and the teaching animation displays the diagnosis and treatment process from a preset observation perspective.

2. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: The model building module includes: Scanning unit, used to conduct on-site scanning of nuclear medicine wards and obtain scanning information; A modeling unit is connected to the scanning unit and is used to perform modeling based on the scanning information to obtain the virtual hospital model.

3. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 2 is characterized in that: The model building module also includes: The cutting and modularization unit is connected to the modeling unit and is used to perform cutting and modularization processing on the virtual hospital model.

4. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: The virtual hospital model provides predefined paths, which at least include an iodine-131 treatment patient path, a medical imaging examination patient path, a medical care-only channel, and a radioactive material channel.

5. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: The medical data management module includes: An information entry unit, used to enter patient information according to a predefined text configuration file and generate a target configuration file; A visualization unit is connected to the information entry unit and is used to read the text content of the target configuration file and visualize the patient and the corresponding entered patient information through the ward information board in the three-dimensional scene of the virtual hospital model according to the read text content.

6. The digital twin-based virtual system for managing iodine-131 treatment wards in nuclear medicine according to claim 1 is characterized in that: The remote interaction module includes: The communication establishment unit is used for medical staff to link the host operated by the medical staff with the sub-machine operated by the target patient according to the patient information of the target patient, establish a real-time voice communication channel, and conduct online ward rounds for the target patient.

7. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: The diagnosis and treatment process management module includes: A process selection unit, wherein a plurality of the diagnosis and treatment processes are preset in the process selection unit, and each of the diagnosis and treatment processes is preset with a plurality of diagnosis and treatment nodes to be executed in sequence; The process teaching unit is used to play the corresponding diagnosis and treatment process animation through the three-dimensional scene of the virtual hospital model according to the diagnosis and treatment process selected by the patient.

8. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: The process teaching unit includes: A node loading subunit is used to sequentially load the diagnosis and treatment nodes of the diagnosis and treatment process, and switch the interactive interface and spatial positioning identifier through the three-dimensional scene of the virtual hospital model; The node execution subunit is connected to the node loading subunit and is used to switch to the preset observation angle to play the corresponding teaching animation and synchronously start voice and text prompts when the patient completes the position confirmation and interactive operation of the current diagnosis and treatment node; The node loading subunit is further used to restore the viewing angle and reset the scene state after the teaching animation is played, and load the next diagnosis and treatment node.

9. The virtual system for managing iodine-131 treatment wards in nuclear medicine based on digital twins according to claim 1 is characterized in that: Also includes: The electronic certificate generation module is used to generate electronic discharge certificates.

10. The digital twin-based virtual system for managing iodine-131 treatment wards in nuclear medicine according to claim 9 is characterized in that: The electronic certificate generation module is used to generate the electronic discharge certificate when it is detected that the patient has completed all preset diagnosis and treatment nodes of the diagnosis and treatment process and has met the discharge criteria.

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