摘要
目的分析某地区206家医疗机构2024年个人剂量监测异常结果,并提出改进建议。方法对于监测结果大于调查水平的人员进行大剂量核查,对核查结果进行统计分析。结果某地区206家医疗机构2024年个人剂量监测结果中,异常结果占比为1.04%,一、二、三级医疗机构异常结果占全部异常结果的比例分别为12.22%、3.33%、84.45%;导致异常结果的原因中,个人剂量计曾经被留置于放射工作场所和铅围裙内、外剂量计混淆佩戴占比分别为52.53%和20.20%;异常监测结果的职业类别中,介入放射学和诊断放射学占比分别为73.34%和24.44%;对剂量值范围进行统计分析,剂量值在1.25~2.0 mSv和2.0~5.0 mSv的占比分别为42.22%和33.33%;对异常监测结果的处理中,赋予名义剂量出具报告和按照检测结果出具报告占比分别为88.89%和11.11%;在连续出现异常结果的医疗机构中,一、二、三级医疗机构占比分别为15.39%、7.69%、76.92%。结论医院的级别与工种,医院对于放射防护管理工作的重视度,以及放射工作人员对于个人剂量监测工作的重视度和依从性等因素都是个人剂量监测中出现异常剂量的可能原因。建议用人单位加强对本单位放射工作人员的放射防护培训,规范佩戴和存放剂量计,逐步提高个人剂量监测的规范性和有效性。
Objective To analyze the abnormal individual dose monitoring results in 206 medical institutions in a selected region in 2024,and to propose improvement measures.Methods Individuals with monitoring results exceeding the investigation level were subjected to high-dose investigation,and the results were statistically analyzed.Results In 2024,the individual dose monitoring of 206 medical institutions in a selected region showed 1.04%abnormal results.The proportions of abnormal results from primary,secondary,and tertiary medical institutions were 12.22%,3.33%,and 84.45%,respectively.In analysis of the causes of abnormal results,52.53%of the cases were due to personal dosimeters left in the radiation workplace,and 20.20%were due to the confusion in wearing personal dosimeters inside and outside the lead apron.In analysis of the occupational distribution of the radiation workers with abnormal monitoring results,interventional radiology and diagnostic radiology accounted for 73.34%and 24.44%,respectively.Statistical analysis of the dose range showed that doses in the ranges of 1.25-2.0 mSv and 2.0-5.0 mSv accounted for 42.22%and 33.33%,respectively.In the report of abnormal monitoring results,the proportions of reporting notional dose and reporting measured results accounted for 88.89%and 11.11%,respectively.Among institutions with consecutive abnormal results,primary,secondary,and tertiary medical institutions accounted for 15.39%,7.69%,and 76.92%,respectively.Conclusion The level of the hospital,occupational type,the perceived importance of the hospital to the management of radiation protection,and the perceived importance and compliance of the radiation workers with the individual dose monitoring are potential causes of abnormal results.It is recommended that employers should enhance radiation protection training for their radiation workers to ensure proper wearing and storage of dosimeters,and progressively improve the standardization and effectiveness of individual dose monitoring practice.
作者
拓华
李文炎
刘澜涛
张贵英
郭泽钦
武鹤雁
TUO Hua;LI Wenyan;LIU Lantao;ZHANG Guiying;GUO Zeqin;WU Heyan(Beijing Prevention and Treatment Hospital of Occupational Disease,Beijing 100093,China)
出处
《中国辐射卫生》
2025年第4期471-476,483,共7页
Chinese Journal of Radiological Health
关键词
个人剂量监测
异常结果
大剂量核查
Individual dose monitoring
Abnormal result
High-dose investigation
