杨开, 冯加武, 孙敬智, 梅勇, 易桂林. 湖北省15家医院介入放射工作场所检测及个人剂量结果分析[J]. 环境与职业医学, 2019, 36(7): 659-663. DOI: 10.13213/j.cnki.jeom.2019.19025
引用本文: 杨开, 冯加武, 孙敬智, 梅勇, 易桂林. 湖北省15家医院介入放射工作场所检测及个人剂量结果分析[J]. 环境与职业医学, 2019, 36(7): 659-663. DOI: 10.13213/j.cnki.jeom.2019.19025
YANG Kai, FENG Jia-wu, SUN Jing-zhi, MEI Yong, YI Guilin. Analysis on interventional radiology workplace detection and staff individual dose of radiation in 15 hospitals in Hubei Province[J]. Journal of Environmental and Occupational Medicine, 2019, 36(7): 659-663. DOI: 10.13213/j.cnki.jeom.2019.19025
Citation: YANG Kai, FENG Jia-wu, SUN Jing-zhi, MEI Yong, YI Guilin. Analysis on interventional radiology workplace detection and staff individual dose of radiation in 15 hospitals in Hubei Province[J]. Journal of Environmental and Occupational Medicine, 2019, 36(7): 659-663. DOI: 10.13213/j.cnki.jeom.2019.19025

湖北省15家医院介入放射工作场所检测及个人剂量结果分析

Analysis on interventional radiology workplace detection and staff individual dose of radiation in 15 hospitals in Hubei Province

  • 摘要: 背景 介入手术在为患者带来健康的同时也会对人体造成有害影响,其放射防护安全一直是放射卫生研究的重点和热点。国内介入放射起步较晚,存在的放射防护问题较多。

    目的 调查分析湖北省15家医院介入放射场所防护现状和放射工作人员个人剂量水平,为改善介入放射场所防护,降低介入放射工作人员受照剂量提供依据。

    方法 采取分层随机结合整群抽样的方法选择湖北省6个城市15家医院,检测其介入放射工作场所周围剂量当量率和透视防护区空气比释动能率水平。采用热释光剂量监测系统监测个人剂量水平,并按照工种分组比较。

    结果 15家医疗机构介入放射工作场所机房外周围剂量当量率为0.11~1.12μSv/h。透视防护区第一术者位空气比释动能率为2.9~399.6 μGy/h,第二术者位为2.9~395.0 μGy/h。15家医疗机构1 054名放射工作人员的人均年有效剂量的MP25P75)为0.130(0.080,0.200)mSv/年,其中介入放射工作人员个人剂量水平为0.131(0.082,0.213)mSv/年,放射诊断工作人员为0.129(0.070,0.200)mSv/年,核医学工作人员为0.100(0.050,0.150)mSv/年,放射治疗工作人员为0.140(0.070,0.240)mSv/a,其他岗位工作人员为0.145(0.048,0.200)mSv/a。

    结论 湖北省15家医疗机构介入放射工作场所防护检测结果符合国家标准要求;介入放射工作人员人均年有效剂量高于放射诊断和核医学工作人员。因此,介入放射工作人员应加强放射防护措施,以便降低个人受照剂量。

     

    Abstract: Background Interventional surgery brings both beneficial and detrimental health effects, and its radiation protection safety has always been the focus and hot spot of radiation health research. Because China's practice of interventional radiology has a late start, there are many radiation protection problems.

    Objective This paper investigates the current status of interventional radiological protection and the individual dose of interventional radiology workers in 15 hospitals in Hubei Province, aiming to improve the protection level of interventional radiology workplaces and reduce the individual dose of interventional radiology workers.

    Methods Using stratified random and cluster sampling method, 15 hospitals in 6 cities of Hubei Province were selected to evaluate the dose equivalent rate around interventional radiation workplaces and the air kerma rate in perspective protection zones. Individual doses were monitored with thermoluminescent dosimeter system and compared among groups of different types of work.

    Results The dose equivalent rate outside the radiation rooms of 15 selected medical institutions was 0.11-1.12 μSv/h. The first operator in the perspective protection zone had an air kerma rate of 2.9-399.6μGy/h, and the second operator had an air kerma rate of 2.9-395.0μGy/h. The annual effective dose in M (P25, P75) of 1054 radiation workers in the 15 medical institutions was 0.130 (0.080, 0.200) mSv/year, and the type-of-work specific doses of interventional radiology workers was 0.131 (0.082, 0.213) mSv/year, that of radiological diagnosis workers was 0.129 (0.070, 0.200) mSv/year, that of nuclear medicine workers was 0.100 (0.050, 0.150) mSv/year, that of radiotherapy workers was 0.140 (0.070, 0.240) mSv/year, and that of others were 0.145 (0.048, 0.200) mSv/year.

    Conclusion The protection level of interventional radiology workplaces in selected 15 medical institutions in Hubei Province meet the requirements of the national standards; however, the annual effective dose of interventional radiology workers is higher than the values of the radiological diagnosis workers and nuclear medicine workers. Thus, the interventional radiology workers need strengthened protective measures to reduce individual exposure to radiation.

     

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