中国医学装备2018，Vol.15Issue(1)：18-21,4.DOI:10.3969/J.ISSN.1672-8270.2018.01.006
控制点数量设定对Monaco5.11计划系统制定鼻咽癌单弧容积旋转调强放射治疗计划的剂量学影响
Influences of the setting of control point number on the formulation of Monaco5.11 plan system for the dosimetry of single volumetric modulated arc therapy plan of nasopharyngeal carcinoma
摘要
Abstract
Objective:To discuss influences of the setting of control point number for plan when Monaco5.11 plan system formulated volumetric modulated arc therapy (VMAT) plan of nasopharyngeal carcinoma.Methods: 10 patients with nasopharyngeal carcinoma were optimized by single arc through adopting the setting of 100 and 120 control point number, respectively. A series of indexes in planning target region and endangered organs, such as dose distribution, monitor units, control point number, therapy time, comformity index and homogeneity index in the target region, and other evaluation indexes, were compared and researched.Results: Both of the two setting could satisfy the requirement of clinical dosage, and the difference of dose distribution between target region and endangered organs was no significant(P>0.05). The average monitor units, control point number and therapy time of 100 control point number setting were respectively 93.5％, 85.2％ and 92.4％ of those of 120 control point number setting.Conclusion: When Monaco5.11 is used to formulate nasopharyngeal carcinoma single arc VMAT plan, the plan of 100 control point number setting can reduce monitor units, control point number and therapy time in the premise of meeting the requirement of clinical dosage.关键词
Monaco5.11计划系统/鼻咽癌/容积旋转调强放射治疗/控制点数量/医用直线加速器Key words
Monaco5.11/Nasopharyngeal carcinoma/Volumetric modulated arc therapy (VMAT)/Control point number/Medical linear accelerator分类
医药卫生引用本文复制引用
洪楷彬,张瑜,柏朋刚,庄建发..控制点数量设定对Monaco5.11计划系统制定鼻咽癌单弧容积旋转调强放射治疗计划的剂量学影响[J].中国医学装备,2018,15(1):18-21,4.基金项目
福建省自然科学基金引导性项目(2015Y0010)"晚期鼻咽癌在线剂量动态评估及自适应放疗动态规划研究" （2015Y0010）
