^(60)Co放射治疗过程中膀胱的受照剂量  

Irradiation dose of bladder in ^(60)Co radiotherapy course

作　　者：贺强[1] 陈大伟[1] 杨晓光[1] 王溪[2] 刘东[2] 曲雅勤[2] 吴镇凤[2] 龚守良[1] 

机构地区：[1]吉林大学公共卫生学院辐射防护教研室,吉林长春130021 [2]吉林大学第二医院放疗科,吉林长春130041

出　　处：《吉林大学学报（医学版）》2004年第3期429-430,共2页Journal of Jilin University：Medicine Edition

基　　金：卫生部国家标准资助项目 (2 0 0 2 )

摘　　要：目的 :研究几种条件下 6 0 Co放射治疗恶性肿瘤时膀胱受照剂量 ,以便改进治疗方案 ,减少和预防放射性膀胱炎的发生。方法 :采用热释光方法配以仿真人体模型模拟 6 0 Co放射治疗过程 ,对患者膀胱受照剂量进行监测。结果 :在 1个根治性治疗疗程内 ,盆腔前后位、后前位和胸腔前后位、后前位及下颈前野照射所致膀胱受照剂量分别为 4 2 .8、 2 5 .9、 0 .33、 0 .1 7和 0 .0 6 Gy。结论 :盆腔前后位、后前位 6 0 Co照射所致膀胱受照剂量较大 。Objective To study the irradiation doses in several kinds of 60 Co radiotherapy patients in order to improve the treatment project, reduce and prevent radio cystitis. Methods The method of thermoluminescence with a model of imitating human was adopted, radiotherapy course of 60 Co was imitated,the irradiation dose of bladder in patients was monitored. Results In a radical cure course of treatment, the irradiation induced bladder doses of anterior posterior (AP) and posterior anterior (PA) of pelvis cavity, AP and PA of chest cavity and front region of lower neck were 42 8,27 5,0 33,0 17, and 0 06 Gy, respectively. Conclusion The irradiation doses of bladder in AP and PA of pelvis cavity are bigger than those in other mode, which may be the main reason for radio cystitis.

关 键 词：放射疗法 钴放射性同位素 热敏发光剂量测定法 剂量效应关系 辐射 

分 类 号：R815.5[医药卫生—放射医学]