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目的比较消化内科在使用铅防护屏、床侧防护吊帘和房顶防护吊帘的综合防护措施前后工作人员操作位辐射场分布特征。方法对介入治疗时操作立位防护平面的13个测试点在防护前后分别进行辐射剂量水平监测。结果介入治疗人员所接受的辐射剂量未加防护前为(382±113)μSv.h-1;防护后为(49.7±32.2)μSv.h-1。结论射线是可防的,特别是操作时球管在下、不动或基本不动(如消化内科、骨科、碎石机等),采取综合防护措施,能有效降低工作人员受照剂量。
Objective To compare the radiation field distribution characteristics of the operating staff before and after the comprehensive protection measures of the lead protection screen, bedside protection curtain and roof protection curtain in the Department of Gastroenterology. Methods During the interventional treatment, 13 test points of standing position protection plane were monitored respectively before and after radiation protection. Results The radiation dose received by interventionalists was (382 ± 113) μSv.h-1 before protection and (49.7 ± 32.2) μSv.h-1 after protection. Conclusion Radiation is preventable, especially when the tube is under operation, fixed or not (such as gastroenterology, orthopedics, lithotripsy, etc.) during operation, and comprehensive protection measures can be taken to effectively reduce the dose of workers.