Method and apparatus for carrying out dose delivery quality assurance for high-precision radiation treatment

A method, implemented by a controller, for carrying out dose delivery quality assurance (DQA) for high-precision radiation treatment, the method comprising:

• a correlation deriving step of establishing a parameter affecting a pass rate of dose DOA and a pass rate prediction model by deriving a correlation between parameter data of a subject to be treated who has completed high-precision radiation treatment comprising Tomotherapy and the pass rate of dose DQA based on regression analysis;
• a parameter selection step of extracting parameters affecting the pass rate of dose DQA derived from the correlation deriving step from among parameters for establishing a treatment plan of a subject to be radiation treated, wherein the parameters extracted include a Y coordinate value of a Tomotherapy radiation irradiation equipment according to a position of the subject to be treated, a maximum leaf opening time of a multi-leaf collimator (MLC), which is a component of the Tomotherapy radiation irradiation equipment, and a number of control points corresponding to radiation projection points arranged at intervals in a circumferential direction of 360 degrees;
• a pass rate calculation step of receiving a variable value of the subject to be treated corresponding to the parameters extracted in the parameter selection step, and
• calculating a predicted value of the pass rate of dose DQA by substituting the variable value into an equation related to the pass rate prediction model based on a control command of the controller;
• and
• a pass rate determination step of performing a first determination of whether the predicted value of the pass rate calculated in the pass rate calculation step meets a preset prediction threshold, when the predicted value of the pass rate meets the preset prediction threshold as a result of the first determination, carrying out the dose DQA according to the treatment plan, and performing a second determination of whether an execution value of the pass rate meets a preset execution threshold as a result of carrying out the dose DQA,
• wherein, when the predicted value of the pass rate does not meet the preset prediction threshold, repeating from the correlation derivation step to re-establish the treatment plan by modifying the variable value of the parameters until the predicted value of the pass rate meets the preset prediction threshold before the dose DOA is carried out, and
• wherein actual treatment is performed only when both results of the first determination and the second determination meet respective thresholds.