北京市某三甲医院放射工作人员个人剂量监测结果分析

目的 通过分析北京市某三甲医院放射工作人员个人外照射剂量监测的结果,为进一步优化放射工作人员个人防护措施提供有效依据。方法 研究的对象为北京市某三甲医院从事放射工作的人员。按不同工作性质,分为介入放射学、核医学、放射影像诊断3组;按不同工作岗位,分为医师、技师、护师3组。采取热释光法对个人剂量进行监测并比较其结果。结果 该三甲医院放射工作人员年剂量水平低于国家标准限值,人均年有效剂量<5 mSv,且人均年有效剂量稳定在较低水平;不同工作性质人均年有效剂量值均数两两比较,其中介入放射学人均年有效剂量高于放射影像诊断,差异有统计学意义(P<0.05),介入放射学与核医学、核医学与放射影像诊断之间,差异无统计学意义;不同岗位人均年有效剂量值均数两两比较,医师、技师、护师之间差异无统计学意义。结论 介入放射学工作人员由于工作性质所致受照剂量最高,可以通过有效的法律法规及防护知识培训,提升放射工作人员的自我职业防护和职业健康意识。

Analysis of Individual Dose Monitoring Results in a Tertiary Hospital in Beijing

Objective In order to optimize the relevant sections of the Radiation Workers' Personal protective measures,in this research we analyze the results of individual external dose of radiation monitoring of a hospital in Beijing.Methods The study objective of this research was the radiation workers who work in a certain grade-three general hospital in Beijing.The research objectives were divided into three groups based on the nature of work,interventional radiology,nuclear medicine,radiology diagnosis respectively;and the research objectives were divided into three groups according to division of occupation,specific physicians,technicians,nurses respectively.Thermoluminescence method was adopted in this research to monitor personal dose and compare the results.Results The Individual Dose Monitoring Results of the hospital was less than 5 mSv,which was below the national standard,and at a low level every year stably.In this research we found statistically significant difference between the interventional radiology group and radiographic diagnosis group,interventional radiology group which was absorbed higher effective dose than radiographic diagnosis group(P < 0.05).There is no statistically significant difference the radiology group and nuclear medicine group,and interventional radiology diagnosis group(P > 0.05).There is no statistically significant among physicians group,technicians group and nurses group(P > 0.05).Conclusion In this research we found interventional radiology workers absorb relatively higher effective dose and we should enhance self-awareness of occupational radiation protection and health by effective protection education and rules implement.