The automatic optimization arithmetic of selecting beam arcs in X-knife radiotherapy planning system.
- Author:
Yin-xiang LIU
1
;
Shu-xiang LI
;
Qing-wen LU
Author Information
1. No. 266 Hospital of the PLA, First Military Medical University.
- Publication Type:Journal Article
- MeSH:
Algorithms;
Brain Neoplasms;
radiotherapy;
Models, Theoretical;
Radiotherapy Dosage;
Radiotherapy Planning, Computer-Assisted;
methods;
Radiotherapy, Conformal;
methods
- From:
Chinese Journal of Medical Instrumentation
2002;26(1):20-22
- CountryChina
- Language:Chinese
-
Abstract:
In this paper, two new concepts of DR (Dose Repulsion) and DG (Dose Gravitation) are presented with their calculation formulas. For the problem of selecting beam arcs in x-knife radiotherapy Planning system, a mathematics model of constrained optimization has been built. Furthermore, we have produced a feasible project of automatic selecting optimized beam arcs plan using SA (Simulated Annealing) arithmetic based on the distribution of the fields of DR and DG in the reduced phase space.
