中国医学装备2019，Vol.16Issue(1)：32-36,5.DOI:10.3969/J.ISSN.1672-8270.2019.01.009
宫颈癌术后调强计划的最优子野数目选择
The selection of optimal number of sub-field of postoperative intensity modulated plan for cervical cancer
石翔翔 1唐涛 1陈斌 1庞皓文 1林盛1
作者信息
- 1. 西南医科大学附属医院肿瘤科,四川 泸州 646000
- 折叠
摘要
Abstract
Objective:To analyze dosimetric parameters of clinical target volume (CTV) and organ at risk (OAR) and choose optimal number of sub-field through compared postoperatively static intensity modulated radiotherapy plan among different number of sub-field.Methods:The location images of 20 postoperative patients with cervical cancer were selected to formulate intensity modulated radiotherapy pan with 7 field.Kept the incident angle and optimal target parameter were same, the 4 kinds of schemes were designed for each patient through changed the number of subfield to 20, 30, 40 and 50.The statistic analysis was adopted to compare the differences of these data of homogeneity, conformation level, dose coverage of various plan for dosimetry of target region, and the radiation dosage of OAR and■increasing of the number of sub-field.Conclusion:Using 30 sub-fields in the postoperative IMRT of cervical carcinoma can ensure the quality of plan, at the same time, it can effectively reduce MU and provide reference for clinical application.关键词
宫颈癌术后/调强放射治疗/子野数目/机器跳数Key words
Cervical cancer/Intensity modulated radiotherapy/The number of sub-field/Monitor unit分类
医药卫生引用本文复制引用
石翔翔,唐涛,陈斌,庞皓文,林盛..宫颈癌术后调强计划的最优子野数目选择[J].中国医学装备,2019,16(1):32-36,5.
