2017年我国19省份医疗机构放射工作人员外照射个人监测异常结果分析  

Analysis of abnormal results of individual monitoring for occupational external exposure of radiation workers in medical institutions in 19 provinces in 2017

作　　者：郝述霞[1] 王博 邓君[1] 张品华[1] 刘建香[1] 孙全富[1] Hao Shuxia;Wang Bo;Deng Jun;Zhang Pinhua;Liu Jianxiang;Sun Quanfu(Key Laboratory of Radiological Protection and Nuclear Emergency,China CDC,National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing 100088,China)

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所,辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088

出　　处：《中华放射医学与防护杂志》2021年第2期99-103,共5页Chinese Journal of Radiological Medicine and Protection

摘　　要：目的根据外照射个人监测异常结果及调查,分析异常结果剂量区间分布、职业类别分布、不同职业类别异常结果发生率、异常结果发生原因以及异常值高低的影响因素,为法规标准的制定和医院放射防护管理提出科学依据。方法收集2017年我国19个省份上报的医疗机构放射工作人员个人监测结果超过1.25 mSv的389例异常结果数据及相关调查并进行分析。结果异常结果的剂量分布区间主要在1.25~5 mSv;诊断放射学工作人员异常结果占比最高,为59.64%;介入放射学工作人员的异常结果发生率最高,为4.17‰。异常结果主要是不规范佩戴或操作个人剂量计导致;东部地区的异常值较其他地区高,中位数为6.41 mSv;原因不详组异常值较其他组高,中位数为10.32 mSv。结论应进一步加强放射防护知识的宣传培训,提高放射工作人员防护意识;介入放射学工作人员的职业照射需要特别关注。Objective To analyze the dose range distribution of abnormal result,the distribution of occupational categories,the incidence of abnormal result of different occupational categories,the causes of abnormal result and the factors influencing abnormal values,on the basis of investigated abnormal result of individual monitoring for occupationally external exposure,in order to provide the scientific basis for the formulation of the relevant regulations and standards and the hospital radiation protection management.Methods The abnormal result of 389 radiation workers in medical institutions receiving annual individual doses each exceeding 1.25 mSv,reported in 2017 in 19 provinces,were collected and analyzed.Results Dose distribution range of abnormal result were mainly between 1.25 and 5 mSv;diagnostic radiology workers accounted for the highest fraction,59.64%of the totals;and interventional radiology workers had the highest incidence,4.17‰of abnormal result.The abnormal result was mainly caused by improper wearing or operating personal dosimeters;the abnormal values in the eastern regions were higher than those in other regions,with a median of 6.41 mSv;the abnormal values in the cause-unknown group was higher than those in other groups,with a median of 10.32 mSv.Conclusions The publicity and training of radiation protection knowledge should be further strengthened to improve the protection awareness of radiation workers.The occupational exposure of interventional radiology workers should receive special attention.

关 键 词：放射工作人员 异常结果 外照射个人监测 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]