摘要
目的了解某市市属及以下医疗机构放射工作人员个人剂量水平，为加强该市医疗机构放射防护提供科学依据。方法于2011年10月1日至2014年12月31日，收集174家该市市属及以下医疗机构申请并成功办理《放射工作人员证》所提交的资料，并根据个人剂量监测报告计算年有效剂量，对性别、办证时间、医院级别、职业照射种类、放射工龄、血象和淋巴细胞微核率等指标进行分析。结果2011至2014年该市市属及以下医疗机构共有1143人办理放射工作人员证，其中1123人至少提供了一次个人剂量监测报告，放射工作人员年有效剂量为0～4．76mSv，平均为（0．31±0．40）mSv，集体年有效剂量为351．96mSv。不同办证时间、医院级别、职业照射种类间放射工作人员年有效剂量差异有统计学意义（P〈0．05）；介入放射学工作人员年有效剂量最高（0．63mSv），且介入放射学中不同放射工龄年有效剂量差异有统计学意义（H=10．812，P〈0．05）。结论该市市属及以下医疗机构放射工作人员个人剂量保持在较低水平，工作场所相对安全，应重点关注临床介入放射工作人员。
Objective To determine the personal dose level of radiation workers in medical institutions at the municipal level and below in a city, and to provide a scientific support for strengthening the radiation protection in the city＇s medical institutions. Methods Information of the successful applicants for the ＂Radiation Worker Permit＂ from 174 medical institutions at the municipal level and below was collected from October 1, 2011 to December 31, 2014. The annual effective dose was calculated based on the personal dose monitoring report, and indicators including sex, permit application time, hospital level, type of occupational radiation, length of radiation work, blood test, and micronucleated lymphocyte rate were analyzed. Results Of the 1 143 radiation worker permit applications submitted by medical institutions the municipal level and below in this city from 2011 to 2014, 1 123 provided at least one personal dose monitoring report. The annual effective close of the radiation workers was 0-4.76 mSv （mean 0.31±0.40 mSv）, and the collective annual effective dose was 351.96 mSv. The annual effective dose was significantly different between radiation workers with different times of permit application, hospital levels, and types of occupational radiation （P〈0.05）. Interventional radiology workers had the highest annual effeetive dose （0.63 mSv）, and annual effective dose was significantly different between interventional radiology workers with different lengths of radiation work （H =10.812, P〈0.05）. Conclusion The personal radiation close of radiation workers in medical institutions at the municipal level and below in this city is maintained at a relatively low level, suggesting that the occupational environment is relatively safe for these workers. However, more focus should be placed on clinical interventional radiology workers.
作者
王畅
莫素芳
张静波
黎金荣
黄润玲
谭汉云
Wang Chang Mo Sufang Zhang Jingbo Li Jinrong Huang Runliag Tan Hanyun.(Radiological Health Department, Guangzhuo Center for Disease Control and Prevention, Guangzhou 510440, China)
出处
《中华劳动卫生职业病杂志》
CAS
CSCD
2017年第8期594-597,共4页
Chinese Journal of Industrial Hygiene and Occupational Diseases
基金
广州市医药卫生科技项目（20161A010062）
关键词
个人剂量监测
外照射
放射学
介入性
Personnel monitoring
External exposure
Radiology, interventional
