中国医学装备2016，Vol.13Issue(3)：28-31,4.DOI:10.3969/J.ISSN.1672-8270.2016.03.007
射波刀治疗计划中定位中心的改变对靶区剂量分布影响研究
Research on the influence of target dose distribution with the changes of align center in Cyberkinfe treatment planning
高行新 1陆军 1李莎 1姜澎 1崔晓磊 1黄永辉1
作者信息
- 1. 兰州军区兰州总医院放射治疗科 甘肃 兰州 730050
- 折叠
摘要
Abstract
Objective:To investigate the influence of target dose distribution with the changes of align center in both Xsignt_spine and Xsight_lung tracking methods.Methods: Two cases using Xsight spine method and one case using Xsight_lung method were selected, one case was close to the spine and another was far away from the spine in Xsight_spine tracking targets, designed the treatment planning of all targets with the Cyberknife treatment planning system. First select the align center corresponding to target center to design the planning, then changed the align center gradually and designed a treatment plan when moving a spine, planning named as T1-T5.Results: The target dose distributions were changed of five planning in each target using Xsight_spine tracking methods, the change of coverage target volume was a little bigger than other parameters, the coverage target volume was from 95.73% to 93.08% in the target close to spine, and the coverage target volume was from 98.52% to 96.57% in the target away from spine. The dose distribution using Xsight_lung methods didn’t change with the align center.Conclusion: The influence of target dose distribution is definite with the change of align center with the targets using Xsight_spine methods. The change of dose distribution was not big when the change of align center was small, but when the change of align center was bigger, the dose distribution had great changes, the change of dose distribution with away from the spine was bigger than which close to the spine. The target dose distribution was constant with the change of align center under using Xsight_lung method.关键词
射波刀/定位中心/椎体追踪/肺追踪/靶区剂量分布Key words
Cyberkinfe/Align center/Xsigt_spine/Xsigt_lung/Target dose distribution分类
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高行新,陆军,李莎,姜澎,崔晓磊,黄永辉..射波刀治疗计划中定位中心的改变对靶区剂量分布影响研究[J].中国医学装备,2016,13(3):28-31,4.
