中国医疗设备2018，Vol.33Issue(4)：65-68,4.DOI:10.3969/j.issn.1674-1633.2018.04.016
COMPASS系统在头颈部肿瘤调强放疗计划验证中的应用
Dosimetric Verification of IMRT in Head and Neck Neoplasms Using COMPASS System
摘要
Abstract
Objective To investigate the dosimetric verification of intensity modulated radiation therapy (IMRT) in head and neck neoplasms using COMPASS 3D quality assurance system. Methods IMRT plan was performed on eight patients with head and neck neoplasms. Dose verification of these IMRT plans was performed by using COMPASS system. Comparing analysis was conducted on treatment planning system (TPS) dose and reconstruct dose measured by COMPASS system. Gamma pass rate and dose volume histograms was analyzed. Results The Gamma pass rate was higher than 95% for target volume between TPS dose and reconstruct dose. The difference of D99, Dmean, D1for target volume between TPS dose and reconstruct dose was within 3%. The Gamma pass rate of spinal cord and brain stem was higher than 95%, and the difference was within 10%. Conclusion COMPASS 3D dose verification system can reconstruct the dose distribution in patient CT images and reflect the actual dose distribution in the region of interest, which is a safe and reliable quality assurance tool.关键词
调强放疗/COMPASS/剂量验证/头颈部肿瘤Key words
intensity modulated radiation therapy/COMPASS/dosimetric verification/head and neck neoplasms分类
医药卫生引用本文复制引用
彭莹莹,张书旭,张全彬,张国前,王琳婧..COMPASS系统在头颈部肿瘤调强放疗计划验证中的应用[J].中国医疗设备,2018,33(4):65-68,4.基金项目
广东省科技计划项目(2016A020215173) （2016A020215173）
广东省教育厅特色创新项目(2016KTSCX116) （2016KTSCX116）
广州市医药卫生科技一般引导项目(20151A010108) （20151A010108）
本项目受到广州市医学重点学科(2017~2019年)肿瘤治疗学及实验肿瘤学项目资助. （2017~2019年）
