期刊论文

Different-field intensity-modulated radiotherapy vs four-field three-dimensional conformal radiotherapy following radical surgery for cervical carcinoma: a dosimetry comparison

中文

中国医学物理学杂志

1005-202X

2018

35

2

183-186

10.3969/j.issn.1005-202X.2018.02.012

本校为第一机构

目的:利用三维治疗计划系统对宫颈癌术后不同射野数调强放射治疗(IMRT)与三维适形放射治疗(3DCRT)的计划作剂量学比较,评价其剂量分布特点,试图根据不同情况选择最佳的治疗方案。方法:选择20例宫颈癌术后患者,利用三维治疗计划系统对每个病例分别模拟三野、五野、七野IMRT计划与四野3DCRT计划。在剂量体积直方图上,比较靶区和正常组织器官照射剂量、靶区内剂量分布均匀性和适形指数。结果:无论三野、五野、七野IMRT的靶区剂量覆盖和适形指数皆优于四野3DCRT,均匀性比较无显著差异。较四野3DCRT,IMRT能减少膀胱、直肠、小肠等正常器官的照射剂量。结论:IMRT技术在保证肿瘤放射剂量的同时可减少并...

Objective To compare the dosimetry of different-field intensity-modulated radiotherapy（IMRT） with four-field three-dimensional conformal radiotherapy（3 DCRT） after radical surgery for cervical carcinoma for evaluating the dose distributions, and select the optimal treatment plan according to different situations. Methods Twenty patients receiving radical surgery for cervical carcinoma were selected, and different plans, namely three-, five-and seven-field IMRT plan and four-field 3 DCRT, were designed for each patients. Based on the dose-vo...