Application of Optimization with Scaled Conjugate Gradient Algorithm in IMRT
(0) Objective To implement the optimization of beam weight in IMRT planning optimization. Methods The treatment planning system of IMRT has been developed with SCG algorithm for determining the intensity-modulated beams and pencil beam model for dose distribution. Results A example of a lung case has been optimized by the IMRT system. The DVH shows that 97％PTV is irradiated by 95％～105％ of the described dose. OAR and normal tissue are irradiated by no more than 15％ and 40％ respectively. Conclusion SCG algorithm implemented as an inverse planning algorithm for determining the intensity-modulated beams that will most closely generate a desired dose distribution is presented as well as a method for dose calculation in IMRT using pencil beam model.
scaled conjugate gradient IMRT optimization
Wang Zhuoyu Zhou Linghong Chen Chaomin Lu Wenting Zeng Xin Zhu Lin
School of Biomedical Engineering, Southern Medical University Guangzhou, China
国际会议
上海
英文
751-754
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）