A method for synchronous and real-time calculation of radiation beam angle in radiation therapy

Abstract

A method for synchronous real-time calculation of radiation beam angle in radiation therapy, the method comprises the following steps: simulating the position of cells in a tumor target area of ​​a positioning machine, determining an initial accelerator beam angle; establishing a human body coordinate system; The three-dimensional transformation matrix of the accelerator beam angle; the migration of cells in the tumor target area is simulated by three-dimensional trigonometric functions; the beam angle of the accelerator is adjusted correspondingly according to the coordinate change of the cells in the tumor target area, and a three-dimensional beam angle related to the movement of the cells in the target area is obtained. Assemble; establish a taboo table for the angle of rays received by cells in crisis and make judgments; establish a database of available accelerator beam angles related to the coordinate position of cells in the tumor target area; use the IRIS system to monitor the position of cells in the tumor target area in real time and feed it back to the computer ; The computer compares the existing beam angle database and adjusts the beam angle accordingly.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method for synchronously and real-time calculation of radiation beam angles in radiotherapy according to tumor positions. Background technique [0002] With the increasingly serious environmental pollution, tumors have gradually become the biggest threat to people's health and life. Radiation therapy is one of the effective methods for treating tumors, including external irradiation and internal irradiation. It uses high-energy radiation beams to kill cancer cells, so as to achieve the purpose of curing cancer, or reducing the suffering of patients and improving the quality of life of patients. [0003] Requirements for radiation therapy planning usually include the following aspects: homogeneity, conformity, simplicity and avoidable damage to sensitive tissues, so how to accurately locate tumor cells for precise beam irradiation Sparing healthy vital organs while striking is...

AI Technical Summary

Problems solved by technology

However, these solutions often only focus on how to locate the tumor target area in real time, but do not consider how to adjust the corresponding radiation beam angle to match the moving target area in real time after determining the real-time position of the target area, and avoid other damage to the patient. Damage to vital health parts

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