期刊论文

Effects of ovaries sparing on planning target volume and organs-at-risk during linear accelerator radiotherapy for cervical cancer

中文

中国医学物理学杂志

1005-202X

2020

37

9

1115-1119

10.3969/j.issn.1005-202X.2020.09.007

河南省科技发展攻关项目(182102310700)。

本校为其他机构

目的:探究宫颈癌直线加速器放疗时保卵巢对计划靶区和危及器官的剂量学影响。方法:随机选取16例保卵巢宫颈癌直线加速器放疗患者,基于XiO计划系统为每例患者设计7野均分调强计划,并通过归一使95%计划靶区剂量达到45 Gy。在除卵巢外其他优化参数相同的情况下,生成保卵巢组和不保卵巢组两组治疗计划,比较两组计划的靶区和危及器官的剂量学差异。结果:两组计划均满足临床要求。对于计划靶区,保卵巢组与不保卵巢组的适形度指数和均匀性指数分别为0.708±0.051、0.808±0.056(P

Objective To explore the dosimetric effects of ovaries sparing in linear accelerator(LA)radiotherapy for cervical cancer on planning target volume(PTV)and organs-at-risk(OAR).Methods Sixteen patients treated with ovaries-sparing LA radiotherapy for cervical cancer were randomly selected,and 7-field IMRT plans were designed for each patient based on XiO treatment planning system.The 95% of PTV receiving 45 Gy irradiation dose was achieved by normalization.With the same optimization parameters except the treatment of ovaries,two groups of treatme...