某医院核医学工作人员职业性外照射个人剂量及相关性分析

Individual irradiation dose trend and correlation analysis of nuclear medicine workers in a hospital

目的了解某医院核医学工作人员在医疗放射工种中的个人剂量水平,为核医学职业人群健康管理提供依据。方法于2014年1月至2018年12月,选取某医院147名放射工作人员作为监测对象分析个人剂量监测数据。并对个人剂量和临床工作量进行相关性分析。结果147名工作人员年均个人剂量均在国家规定剂量限值以下,与放射科比较,核医学工作人员的年均个人剂量较高,差异有统计学意义(P<0.05)。与间接接触组比较,核医学放射性核素直接接触组工作人员各年人均年个人剂量均较高,差异有统计学意义(P<0.05)。护士组工作人员各年间年均个人剂量和相应注射工作量呈正相关关系(Rs=0.69,P<0.05)。结论核医学技师和护士职业暴露风险较高,应采用合理防护措施降低辐射暴露剂量。

Objective To understand the personal dose level of nuclear medical workers in a hospital,and to provide basis for health management of nuclear medicine occupational population.Methods From January 2014 to December 2018,147 radiation workers in a hospital were selected as the monitoring objects,and the individual dose monitoring data were analyzed.The correlation between individual dose and clinical workload was analyzed.Results The average annual personal dose of 147 staff members was below the national dose limit.Compared with the radiation department,the average annual personal dose of nuclear medical staff was higher,and the difference was statistically significant(P<0.05).There was a positive correlation between the annual average personal dose and the corresponding injection workload(Rs=0.69,P<0.05).Conclusion The occupational exposure risk of nuclear medical technicians and nurses is high,and reasonable protective measures should be taken to reduce the radiation exposure dose.Conclusion The occupational exposure risk of nuclear medical technicians and nurses is high,and reasonable protective measures should be taken to reduce the radiation exposure dose.