摘要
[目的]了解江苏省某肿瘤专科医院放射工作人员外照射个人剂量,为科学合理地实施放射防护管理提供依据。[方法]分析2012—2016年间该医院放射工作人员(共计1 001人次,涉及放射诊断学、放射治疗学、介入放射学、核医学4个职业类别)的职业性外照射个人剂量。[结果]5年间,该医院放射工作人员人均年有效剂量范围为0.16~0.22 mSv(平均0.18 mSv),所有人员监测结果均低于GB 18871—2002《电离辐射防护与辐射源安全基本标准》的限值(20 mSv)。不同职业类别放射工作人员人均年有效剂量之间的差异存在统计学意义(H=119.39,P<0.01),人均年有效剂量从高到低依次为介入放射学(0.51 mSv)、核医学(0.28 mSv)、放射诊断学(0.19 mSv)和放射治疗学(0.13 mSv)。最高年有效剂量的最高值发生于放射诊断学的技术岗位(2.73 mSv),最低值发生于核医学的医师岗位(0.38 mSv)。介入放射学工作人员人均年有效剂量自2014年开始升高(P<0.01),且高于其他职业类别(P<0.01)。[结论]该肿瘤专科医院放射工作人员人均年有效剂量低于国家规定的剂量限值,介入放射学工作人员放射防护管理尤其值得重视。
[Objective] To observe the personal radiation doses of radiological staff in a cancer hospital in Jiangsu Province, so as to provide reference for the scientific management of radiation protection. [Methods] The occupational exposure doses of radiological staff in a cancer hospital from 2012 to 2016 were analyzed. A total of 1 001 person-times were recorded, involving radiodiagnosis, radiotherapy, interventional radiology, and nuclear medicine departments.[Results] In the five years, the annual effective doses were between 0.16 mSv and 0.22 mSv, with an average of 0.18 mSv. All personnel doses were under the limit（20 mSv） of Basic standards for protection against ionizing radiation and for the safety of radiation sources（GB 18871-2002）. The annual effective doses were significantly different among departments（H=119.39, P 〈 0.01）. In descending order, the annual effective dose was found in interventional radiology department（0.51 mSv）, nuclear medicine department（0.28 mSv）, radiodiagnosis department（0.19 mSv）, and radiotherapy department（0.13 mSv）. The highest maximum annual effective dose occurred in radiodiagnosis technician（2.73 mSv）, and the lowest occurred in nuclear medicine physician（0.38 mSv）. The personal annual effective dose of the interventional radiology staff visibly turned up since 2014（P 〈 0.01）, and was obviously higher than that of the staff of other departments（P 〈 0.01）.[Conclusion] The annual average effective doses of selected radiological staff in the cancer hospital are under the limit stipulated by the national standard. Protection management of staff with duty of interventional radiological treatment deserves more attention.
作者
周瑾
邹燕兰
孙彦婷
朱娟芳
ZHOU Jin;ZOU Yan-lan;SUN Yan-ting;ZHU Juan-fang(Jiangsu Cancer Hospital, Jiangsu Cancer Prevention and Treatment Institution, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu 210009, China)
出处
《环境与职业医学》
CAS
CSCD
北大核心
2018年第4期352-355,共4页
Journal of Environmental and Occupational Medicine
关键词
放射工作人员
个人剂量
介入放射学
radiation worker
personal radiation dose
interventoinal radiological
