期刊论文

中文

中国医学物理学杂志

1005-202X

2011

28

6

2997-2999

10.3969/j.issn.1005-202X.2011.06.012

本校为第一机构

目的:报道23例全身照射患者的照射方法,并对照射中的实时监测结果进行剂量学分析。方法:采用6MV X线对23例患者行前后对穿野分次全身照射治疗,并在照射中用多通道半导体剂量计对晶体、肺、腹部、睾丸、膝五个部位进行剂量实时监测。结果:晶体、肺、腹部、睾丸、膝五个部位的平均受照剂量分别为445.28 cGy、614.26 cGy、799.71cGy、210.21 cGy、840.74 cGy,所有患者的肺实际受照剂量均在限制剂量以内,5例患者腹部实测剂量和处方剂量的剂量偏差超出了5%。结论:患者实际受照剂量与处方剂量会存在一定偏差,为了保证患者的安全,在照射过程中进行剂量实时监测是十分必要的。

Objective: To report the irradiation method of 23 patients received total body irradiation and to analyze the dosimetry characteristics according to the result of real-time dose monitoring by semiconductor dosimeter.Methods: Fractionated-Total body irradiation by 6 MV X-Ray with anterior-posterior fields was given to 23 patients and the multi-channel semiconductor dosimeter was used for real-time monitoring to lens,lung,abdomen,testicle and knee during total body irradiation.Results: The mean actual dose of lens,lung,abdomen,testicle and knee was 445.28 cGy,614.26 cGy,799.71 cGy,210.21 cGy,840...