Radiotherapy efficient and accurate automatic assessment method and system

Abstract

The invention discloses an efficient and accurate automatic assessment method and system for radiotherapy, and the method comprises the steps: obtaining a plan application form from a radiotherapy electronic information system, and extracting radiotherapy prescription requirements, including a target region and a dose target endangering organs, from the plan application form in batches through a program; designing a radiotherapy plan in the radiotherapy planning system, and exporting dose volume histogram data of the radiotherapy plan in batches from the radiotherapy planning system through a script; and comparing each dose volume histogram data with corresponding radiotherapy prescription requirements by adopting a batch comparison algorithm to generate a multi-dimensional evaluation report. The method has the technical advantages that 1) the evaluation efficiency is remarkably improved, and the requirements of a high-intensity working environment are met; 2) the evaluation rule is unified through an algorithm, and the influence of human factors on the result is reduced; and 3) abnormal conditions in a plurality of plans can be rapidly identified, and doctors can be assisted to make more accurate decisions.

Description

Technical Field

[0001] The present invention relates to the field of medical information, and particularly to a method and system for efficient, accurate and automated evaluation of radiotherapy. Background Art

[0002] The dose-volume histogram (DVH) is an important tool for evaluating radiotherapy plans. By showing the distribution of dose in the target area and organs at risk, it can intuitively reflect whether the radiotherapy plan meets the prescription requirements. The DVH is widely used in the field of radiotherapy and has become a key data basis for evaluating the quality of plans. Through the analysis of the DVH, doctors can accurately judge the coverage of the target area and the protection effect of organs at risk, so as to optimize the treatment plan and achieve the goal of ensuring the curative effect and reducing side effects.

[0003] Currently, the evaluation of radiotherapy plans mainly relies on manual analysis and judgment. Especially when multiple plans need to be evaluated simultaneously, the workload is huge and it is easy to make mistakes. In clinical practice, doctors need to compare the DVH of each plan with the prescription requirements one by one and manually judge the target coverage rate and the dose over-standard situation of organs at risk. This traditional method is not only inefficient but also may lead to incorrect judgments due to human omissions, affecting the optimization and implementation of treatment plans. Especially in complex cases or when multiple plans need to be compared, the limitations of manual operation are more significant. Summary of the Invention

[0004] Aiming at the above-mentioned defects and deficiencies existing in the prior art, the present invention aims to solve the problems of low efficiency and easy error in the prior art.

[0005] To achieve the above object, the present invention provides a method for efficient, accurate and automated evaluation of radiotherapy, which includes:

[0006] Obtain a plan application form from the radiotherapy electronic information system, and batch extract the radiotherapy prescription requirements therein by a program, including the dose targets of the target area and organs at risk;

[0007] Design a radiotherapy plan in the radiotherapy planning system, and batch export the dose-volume histogram data of the radiotherapy plan from the radiotherapy planning system through a script;

[0008] Adopt a batch comparison algorithm to compare each dose-volume histogram data with the corresponding radiotherapy prescription requirements to generate a multi-dimensional evaluation report.

[0009] A further improvement of the present invention lies in that: the radiotherapy planning system has a script interface, and through the script interface, batch query and extraction can be performed according to the radiotherapy plan ID and patient information.

[0010] A further improvement of the present invention lies in that: the dose-volume histogram is generated by the radiotherapy planning system according to the radiotherapy plan.

[0011] A further improvement of the present invention lies in that: the multi-dimensional evaluation report includes the target area compliance rate, the proportion of over-dose of organs at risk, and the dose deviation distribution.

[0012] A further improvement of the present invention lies in that: it includes visualizing and displaying the multi-dimensional evaluation report; the display methods include the superposition display of the curve of the dose-volume histogram and the target range, and the highlighting of non-compliant areas.

[0013] A further improvement of the present invention lies in that: the multi-dimensional evaluation report is stored in a database for subsequent research analysis and clinical quality improvement.

[0014] The present invention also provides a radiotherapy highly efficient, accurate and automated evaluation system for implementing the above-mentioned radiotherapy highly efficient, accurate and automated evaluation method.

[0015] The advantages of the present invention are as follows:

[0016] 1) It supports batch operations, greatly reduces manual intervention, and improves efficiency;

[0017] 2) It has higher accuracy and reduces the risk of human error;

[0018] 3) The evaluation results are clear and intuitive, facilitating rapid judgment by doctors;

[0019] 4) It supports personalized optimization and can flexibly adjust evaluation rules according to different clinical needs;

[0020] 5) It standardizes quality control and promotes the standardization and digitization of radiotherapy plan evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flowchart of the radiotherapy highly efficient, accurate and automated evaluation method;

[0022] Figure 2 is a technical roadmap of the radiotherapy highly efficient, accurate and automated evaluation method. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0024] For the purpose of illustration, some exemplary embodiments of the present invention are described. It should be understood that the present invention can be implemented in other ways not specifically shown in the drawings.

[0025] The present invention provides a method for efficient, accurate and automated evaluation of radiotherapy, aiming to achieve rapid evaluation of radiotherapy plans, especially in the batch processing scenarios of multiple patients and multiple plans. Through automation technology, the evaluation time is significantly shortened, saving manpower and time costs for clinical work. This method ensures the accuracy of evaluation results through precise algorithms, avoiding omissions and deviations caused by insufficient experience or fatigue in traditional manual evaluation, and providing a more reliable reference basis for doctors, thus improving the overall quality of radiotherapy plans. The method provides evaluation results in a user-friendly manner, visually displaying the comparison results of DVH curves and prescription requirements through a visualization interface, enabling doctors to quickly locate problem points and adjust treatment plans accordingly. At the same time, the system supports flexible setting of evaluation rules to meet personalized needs in different clinical scenarios. This method realizes the standardization and standardization of radiotherapy quality control. Through batch processing and unified evaluation criteria, it promotes the transformation of radiotherapy from experience-driven to data-driven, further promoting the development of precision medicine.

[0026] Based on the standardization of radiotherapy prescription requirements and the automated computer processing ability, the present invention solves the problem of low efficiency of manual comparison one by one through batch design. By adopting unified evaluation rules and algorithms, it can ensure the reliability and consistency of results, and at the same time greatly improve the evaluation efficiency to meet the clinical need for rapid evaluation of radiotherapy plans.

[0027] By structuring DVH data and automatically matching it with prescription requirements, it can effectively reduce human intervention and subjective errors, ensuring the accuracy of key dose indicators. Combined with the batch evaluation mode, potential problems in multiple plans can be quickly discovered, which helps to optimize plan design and improve the overall quality and safety of radiotherapy.

[0028] As Figure 1 、 Figure 2 shown, the embodiments of the present invention provide a method for efficient, accurate and automated evaluation of radiotherapy, which includes the following steps:

[0029] Obtain the plan application form from the radiotherapy electronic information system, and batch extract the radiotherapy prescription requirements therein by program, including the dose targets of the target area and organs at risk; the radiotherapy electronic information system supports a standardized format data exchange interface to ensure compatibility and data consistency between multiple systems.

[0030] The radiotherapy plan is designed in the radiotherapy planning system (TPS), and the dose volume histogram (DVH) data of the radiotherapy plan is exported in batches from the radiotherapy planning system through a script. The dose volume histogram is generated by the radiotherapy planning system according to the radiotherapy plan. The radiotherapy planning system has a script interface, through which batch queries and extractions can be performed based on the radiotherapy plan ID and patient information.

[0031] The batch comparison algorithm is used to compare the dose volume histogram data with the corresponding radiotherapy prescription requirements to generate a multidimensional evaluation report, which includes the target area compliance rate, the proportion of excess dose to organs at risk, and the distribution of dose deviation.

[0032] The multi-dimensional evaluation report is displayed in a visual way; its display method includes the superposition of the dose volume histogram curve and the target range, and the highlighting of the non-compliant areas, which facilitates doctors to make quick judgments.

[0033] The radiotherapy planning system supports customized settings of evaluation rules, allowing users to adjust dose thresholds and evaluation criteria according to different disease types and treatment plans to meet the diverse needs of different radiotherapy plans;

[0034] This solution integrates batch management functions, can process data of multiple patients at the same time, supports multi-task parallel processing in large-scale clinical scenarios, and provides progress monitoring and result tracking of task queues.

[0035] This solution can expand data storage and statistical analysis functions, and the evaluation results can be stored in the database for subsequent research analysis and clinical quality improvement.

[0036] The present invention also provides a radiotherapy efficient and accurate automated evaluation system for implementing the above-mentioned radiotherapy efficient and accurate automated evaluation method.

[0037] During the implementation process: First, the planning data is exported in batches from the radiotherapy planning system, and the patient's radiotherapy prescription is obtained from the electronic information system. Then, the two sets of data are imported into the evaluation system, and the automated algorithm is run to complete the batch evaluation. Finally, the generated evaluation report is reviewed by the doctor to determine whether the plan quality meets clinical needs and guide the further optimization of the plan.

[0038] Doctors can use the visual interface to intuitively view the comparison results of the DVH curves of each plan with the prescription requirements, quickly locate the problem points of insufficient target dose or excessive dose of organs at risk, and adjust the treatment plan based on the optimization suggestions provided in the report. In addition, the system also supports the export of evaluation results as a basis for quality control, which can be used for quality management audits inside and outside the hospital.

[0039] In a specific embodiment:

[0040] 1) Batch export the DVH data of multiple patients from the radiotherapy treatment planning system. The data format is a standardized XML file, which can be automatically exported by calling the script function of the TPS.

[0041] 2) Extract the radiotherapy prescription requirements of the corresponding patients from the electronic information system, including the minimum dose, maximum dose of the target area, and dose limits of the organs at risk.

[0042] 3) Use dedicated software to import the batch DVH data and prescription requirements.

[0043] 4) Run the algorithm to batch generate multi-dimensional evaluation reports, which show the compliance of the target area of each plan (such as a certain plan's target area reaching 90% of the prescription requirements) and the over-dosed parts of the organs at risk.

[0044] 5) Batch display the evaluation results of each plan and the comparison between the DVH curve and the prescription requirements on the system interface.

[0045] In another specific embodiment:

[0046] 1) For the radiotherapy plans of a certain batch of cancer patients, import their multiple target segmentation schemes and multiple DVH data respectively.

[0047] 2) The system automatically matches the dose distribution of each scheme with the prescription requirements and generates optimization suggestions.

[0048] 3) The doctor adjusts the scheme based on the evaluation report and batch verifies the compliance of the final plan again.

[0049] In the scenario of batch evaluation, the feasibility of automatically processing DVH data and accurately comparing it with the prescription requirements is becoming increasingly obvious. With the increase in clinical needs and the development of information technology, batch evaluation has the following significant advantages: 1) Significantly improve the evaluation efficiency and meet the needs of a high-intensity working environment; 2) Unify the evaluation rules through algorithms and reduce the influence of human factors on the results; 3) Quickly identify abnormal situations in multiple plans and assist doctors in making more accurate decisions. Therefore, the batch evaluation system based on computer algorithms is not only a technical means to improve work efficiency, but also an important link to achieve precision medicine.

[0050] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A highly efficient and accurate automated evaluation method for radiotherapy, characterized in that include: Obtain the plan application form from the radiotherapy electronic information system and use a program to batch extract the radiotherapy prescription requirements, including the dose targets for the target area and organs at risk; Design radiotherapy plans in the radiotherapy planning system, and batch export the dose volume histogram data of the radiotherapy plans from the radiotherapy planning system through scripts; A batch comparison algorithm is used to compare the dose volume histogram data with the corresponding radiotherapy prescription requirements to generate a multidimensional evaluation report.

2. A highly efficient and accurate automated evaluation method for radiotherapy according to claim 1, characterized in that: The radiotherapy planning system has a script interface, through which batch query and extraction can be performed according to the radiotherapy plan ID and patient information.

3. The method for efficient and accurate automated assessment of radiotherapy according to claim 1, characterized in that: The dose volume histogram is generated by a radiotherapy planning system according to a radiotherapy plan.

4. The method for efficient and accurate automated assessment of radiotherapy according to claim 1, characterized in that: The multidimensional assessment report includes the target area achievement rate, the proportion of overdose to endangered organs, and the dose deviation distribution.

5. The method for efficient and accurate automated evaluation of radiotherapy according to claim 1, characterized in that: It includes visual display of multi-dimensional evaluation reports; the display methods include superimposed display of the dose volume histogram curve and the target range, and highlighting of non-compliant areas.

6. The method for efficient and accurate automated assessment of radiotherapy according to claim 1, characterized in that: The multidimensional assessment report is stored in a database for subsequent research analysis and clinical quality improvement.

7. A highly efficient and accurate automated evaluation system for radiotherapy, used to implement the highly efficient and accurate automated evaluation method for radiotherapy as described in any one of claims 1 to 6.

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