Method for deriving and reestablishing dosage-volume histograms from Pinnacle radiotherapy plan system

Abstract

The invention provides a method for deriving and reestablishing dosage-volume histograms from a Pinnacle radiotherapy plan system. The method includes firstly, writing script programs and embedding the script programs into the Pinnacle radiotherapy plan system, then, through execution of the script programs, deriving the graphical dosage-volume histograms stored in the system in a differential expression form and storing the histograms to ASCII (American standard code for information interchange) text files in special formats, and finally, through analysis of the text files, reestablishing the dosage-volume histograms in the differential expression form. By the method, graphical dosage-volume histogram curves are transformed into digital formats, so that accuracy is improved when the Pinnacle radiotherapy plan system is utilized to evaluate radiation dosages on human bodies, a possibility is provided to independent storage and batch processing of dosage-volume information of patients receiving radiotherapy, and technical supports are provided to clinic and scientific research work implementation by tumor radiotherapy clinicians and radiotherapy physicists.

Description

technical field [0001] The invention relates to the technical field of computer application in radiotherapy planning, in particular to a method for deriving and reconstructing a dose-volume histogram from a Pinnacle radiotherapy planning system. Background technique [0002] Radiotherapy planning system: [0003] A radiotherapy planning system is a computer software system that simulates a radiotherapy plan by modeling radioactive sources and patients. [0004] Before tumor patients receive radiotherapy, radiotherapy plan design should be carried out for each patient on the radiotherapy planning system platform: first, the radiologist scans the patient with CT, and transmits the patient's body tomographic images obtained after scanning to radiotherapy The computer workstation of the planning system; in the second step, the clinician in the radiotherapy department draws the contours of the tumor area and the normal organs around the tumor on the patient's tomographic image...

AI Technical Summary

Problems solved by technology

As far as the existing technology is concerned, on the one hand, doctors need to occupy a single radiotherapy planning system resource, check the graphical dose-volume histogram curve of each patient in a completely manual operation, and record the above indicators corresponding to each patient one by one , which will occupy expensive medical resources of the radiotherapy planning system and take a lot of time, and reading errors and visual deviations may occur during the recording process; on the other hand, in follow-up studies, if you want to review the recorded results or count other indicators again , it is necessary to check the patient's dose-volume histogram one by one again, and usually, in the tumor radiotherapy physics room of most hospitals, the radiotherapy planning system workstation resources are limited, and there are not enough workstations for doctors to perform simple scientific research and statistical work

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