Method for processing radiotherapy precision data on basis of probability safety analysis
A technology of probabilistic safety analysis and data processing, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem that the probabilistic safety evaluation system cannot directly apply the analysis of the accuracy of radiation therapy, and achieve the goal of broadening the scope of application Effect
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[0019] Such as figure 1 As shown, a radiotherapy accuracy data analysis method based on probabilistic safety analysis, its implementation steps are as follows:
[0020] (1) Use the existing radiotherapy experience data or simulated experimental data to collect initial data as the source data in the probabilistic safety analysis method, including: basic event probability and probability error data, data related to human errors, total related data;
[0021] (2) Taking the failure of radiotherapy accuracy as the top event, modeling the radiotherapy process as a fault tree, and dividing all factors that have a key impact on radiotherapy into dose errors, setup errors, target area delineation errors, and output errors4 Large categories, expand each category separately, analyze all factors that directly lead to its occurrence, until the initial event, so that all events can be linked into a fault tree;
[0022] (3) Input the probability data of each initial event in the fault tree...
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