Abstract： Objective To evaluate the dosimetric differences of one RapidPlan Model on different Radiotherapy devices. Methods A RapidPlan Model was built based on 30 reoptimization IMRT plans of cervical cancer patients on type"A" LA.Dosimetric differences of automatic optimized IMRT plans using this model on 4 different type LAs,named respectively"A","B","C" and"D",were compared with 12 test cervical cancer cases. These four LAs were well commissioned in the treatment planning system (TPS).Student t test was applied for statistical analysis on dosimetric differences. Results Dosimetric differences between A vs. B,C and D were observed on Dmean,HI,CI of PTV50 and PTV45,as well as on V50,V40,V30 of rectum and bladder. Significant dosimetric differences were observed between A and D (P<0.05). Conclusions Automatic planning with RapidPlan model may result in dosimetric differences on different Radiotherapy devices. These differences should be aware of with caution in its clinical application.
Ren Jiangping,Tao Qingsong,Zhou Yingying et al. Dosimetric evaluation of RapidPlan model on different Radiotherapy devices[J]. Chinese Journal of Radiation Oncology, 2017, 26(8): 924-928.
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