Radiotherapy equipment high-energy beam path optimization method for multiple tumor

Abstract

The invention provides a radiotherapy equipment high-energy beam path optimization method for multiple tumor, belonging to the technical field of medical equipment and artificial intelligence. The method includes degenerating actual tumor areas into actual tumor points, and determining the coordinates of the actual tumor points; calculating the distance between any two actual tumor points and establishing a distance matrix; re-initializing the search parameter and calculating the initial value of the heuristic function; searching the optimal loop path; finding the two actual tumor points in the largest distance in the optimal loop path, and removing the connection line between the two actual tumor points from the optimal loop path to make the residual part be the final path. The actual tumor area is degenerated into a tumor point, the radiation ray scanning problem is transformed into a problem that how to traverse all tumor points with the shortest path, and a path optimization method is provided, so that the treatment time is greatly reduced, the patient treatment pain is alleviated, and a positive role in promoting the development of artificial intelligence in medical equipment is played.

Description

technical field [0001] The invention discloses a high-energy beam path optimization method for radiotherapy equipment for multiple tumors, belonging to the technical fields of medical equipment and artificial intelligence. Background technique [0002] Radiation therapy for tumors is a local treatment method that uses radiation to treat tumors. Radiation includes α, β, γ rays produced by radioactive isotopes and X-rays, electron beams, proton beams and other particle beams produced by various X-ray therapy machines or accelerators. According to statistics, about 70% of cancer patients need radiotherapy in the process of cancer treatment, and about 40% of cancers can be cured with radiotherapy. The role and status of radiotherapy in tumor treatment has become increasingly prominent, and it has become one of the main means of treating malignant tumors. [0003] Malignant tumors can metastasize, that is, the cancer cells in the primary malignant tumor transfer to other distan...

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Problems solved by technology

[0006] In the above method, since the radiation generating device also scans the actual non-tumor area, and the area of ​​the actual non-tumor area is often much larger than the actual tumor area, a large amount of treatment time is wasted in the scanning process of the actual non-tumor area. It can reduce the scanning time of this part of the area, and move quickly from one actual tumor area to another actual tumor area, which can greatly reduce the treatment time and relieve the pain of treatment for patients. However, no related methods have been found yet.

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