医疗卫生装备2024，Vol.45Issue(7)：51-55,5.DOI:10.19745/j.1003-8868.2024131
不同铅门宽度对肝细胞癌立体定向放射治疗的剂量学影响研究
Dosimetric effect of jaw widths on stereotactic body radiotherapy for hepatocellular carcinoma
杭霞瑜 1李益坤 1胡俊 1曹若琪 1张琰 1徐楠 1宋宪强 1孙向东1
作者信息
- 1. 东部战区总医院放射治疗科,南京 210002
- 折叠
摘要
Abstract
Objective To investigate the radiotherapy dose impacts of different jaw widths on stereotactic body radiotherapy(SBRT)for hepatocellular carcinoma(HCC)with the hilical tomotherapy(HT)planning system.Methods Totally 16 HCC patients who received radiotherapy at some hospital from March 2021 to August 2023 were selected,and the planning was carried out with the same pitch,modulation factors and optimization conditions and the jaw widths being 1.0,2.5 and 5.0 cm.The dosimetric differences due to the jaw widths in planned targets and organs at risk(OAR)were compared,and the planned treatment time,monitor unit,gantry rotations and gantry period were evaluated.SPSS 22.0 was used for statistical analysis.Results Better dosimetric parameters and lower doses to OARs could be got with lower jaw widths.The widened jaw widths resulted in reduced planned treatment time,decreased monitor units and gantry rotations,shortened gantry period while enhanced treatment efficiency.Conclusion A 2.5 cm jaw width for HT planning contributes to improving treatment efficiency during HCC SBRT under the premise of ensured target dose distribution and satisfactory dose to OAR for clinical require-ments.[Chinese Medical Equipment Journal,2024,45(7):51-55]关键词
铅门宽度/肝细胞癌/立体定向放射治疗/剂量学参数/螺旋断层放射治疗Key words
jaw width/hepatocellular carcinoma/stereotactic body radiotherapy/dosimetric parameter/helical tomotherapy分类
基础医学引用本文复制引用
杭霞瑜,李益坤,胡俊,曹若琪,张琰,徐楠,宋宪强,孙向东..不同铅门宽度对肝细胞癌立体定向放射治疗的剂量学影响研究[J].医疗卫生装备,2024,45(7):51-55,5.
