ArcCheck剂量验证角度分析食管上段癌调强放疗技术  

The analysis of the radiotherapy techniques for the treatment of upper esophageal cancer form the dose verification by ArcCheck

作　　者：何栋成[1] 张晓晔[1] 张艳[1] 韩济华[1] 曹磊[2] 朱志坚[1] HE Dongcheng;ZHANG Xiaoye;ZHANG Yan;HAN Jihua;CAO Lei;ZHU Zhijian(The Affiliated Huaian First People's Hospital of Nanjing Medical University, Huai'an 223300 China;Suqian Branch, Jiangsu Province hospital)

机构地区：[1]南京医科大学附属淮安第一医院,江苏淮安223300 [2]江苏省人民医院宿迁分院

出　　处：《中国辐射卫生》2019年第2期206-208,213,共4页Chinese Journal of Radiological Health

摘　　要：目的从剂量验证角度比较食管上段癌静态调强(sIMRT)、动态调强(dIMRT)、容积旋转调强(VMAT)三种方式放射治疗技术。方法选取2017年1月到2017年12月在淮安市第一人民医院接受治疗的20例食管上段癌患者资料,按处方要求每位患者在Monaco治疗计划系统分别设计3个不同调强技术的计划,然后将设计完成的计划传输到MOSAIQ系统上,同时将治疗计划均植入到ArcCheck模体上重新计算剂量。对治疗计划系统中计算的结果与实际测量的结果进行对比分析,阈值标准选择3%,3 mm,10%。结果这三种调强技术Gamma相对剂量和绝对剂量通过率均满足临床要求。sIMRT的通过率相对较高,相对于dIMRT和VMAT有明显的优势,dIMRT和VMAT通过率无明显差异。结论从剂量验证角度来看食管上段癌静态调强放疗计划通过率更高。Objective To analysis the difference among three radiotherapy techniques (sIMRT, dIMRT and VMAT) for the treatment of upper esophageal cancer from the perspective of dose verification. Methods Data of 20 patients with upper esophageal cancer who received treatment in Huai'an First People's Hospital between January 2017 and June 2017 were selected. Each patient according to the requirement is required to design three different intensity-modulated Monaca system technology plans, and then transfer the completed plans to the MOSAIQ system, at the same time the treatment plan was implanted into the ArcCheck model to recalculate the dose. Compared the results calculated in the Monaco system with the results calculated by Gamma methods. The threshold standards were 3%, 3mm and 10%.Results The relative dosages and absolute dosage of all three modulated techniques met clinical requirements. The pass rate of sIMRT is relatively higher, which has obvious advantages over dIMRT and VMAT, and there is no significant difference between dIMRT and VMAT. In relative terms, dIMRT has more advantages. Conclusion From the perspective of dose verification, sIMRT has a higher pass rate of radiotherapy for the treatment of upper esophageal cancer.

关 键 词：剂量验证 静态调强 动态调强 容积旋转调强 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]