广州市核医学工作人员甲状腺^(131)Ⅰ调查结果分析  

Investigation on Thyroid ^(131)I levels of nuclear medicine staff in Guangzhou

作　　者：王建宇[1] 饶鹏 张燕[1] 黄海波[1] 伍慈健 苏艺伟 王致[1] WANG Jianyu;RAO Peng;ZHANG Yan;HUANG Haibo;WU Cijian;SU Yiwei;WANG Zhi(Guangzhou Twelfth People’s Hospital,Guangzhou Occupational Disease Prevention and Treatment Hospital,Guangzhou,Guangdong 510620,China)

机构地区：[1]广州市第十二人民医院(广州市职业病防治院),广东广州510620

出　　处：《职业卫生与应急救援》2024年第5期615-619,共5页Occupational Health and Emergency Rescue

基　　金：广东省医学科学技术研究基金项目(C2023095);广州医科大学科研能力提升计划项目(广医发[2023]16号);广州市市校(院)企联合资助专题(广州市职业环境与健康重点实验室)(2023A03J0502);广州市科学技术局重点研发计划项目(202206010061)。

摘　　要：目的了解广州市核医学工作人员甲状腺中^(131)Ⅰ的活度水平,估算核医学工作人员所受的内照射剂量,评估核医学工作人员的内照射风险。方法2023年9—11月,采用方便抽样的方法,选取广州市4家开展核医学诊疗医院的50名核医学科工作人员为研究对象,使用便携式RT31EPT15型甲状腺测量仪直接测量核医学工作人员甲状腺中^(131)Ⅰ的活度水平,估算被测人员^(131)Ⅰ的摄入量,推导其待积年有效剂量。结果50名核医学工作人员中,甲状腺检出^(131)Ⅰ核素的人员有7名,检出率为14%。不同性别、岗位人员检出率差异均无统计学意义(P>0.05)。检出甲状腺^(131)Ⅰ的7人中,^(131)Ⅰ检出活度范围值为60.8~143.6 Bq,均值84.1 Bq,中位数83.7 Bq,医师、技师、护士的年有效剂量水平分别为0.29 mSv/年、0.38 mSv/年和0.54 mSv/年。结论广州市4家医院50名核医学工作人员的内照射年有效剂量值均在标准限值内,但内照射风险仍不容忽视。应在核医学工作人员间开展内照射剂量常规监测,切实保障核医学工作人员的职业健康。Objective To determine the activity levels of ^(131)I in the thyroids of nuclear medicine staff in Guangzhou,estimate the internal radiation dose received by these staff,and assess their internal radiation risk.Methods From September to November 2023,a convenience sampling method was used to select 50 nuclear medicine staff from four hospitals in Guangzhou that conduct nuclear medicine diagnostics and treatments.A portable RT31EPT15 thyroid measurement device was used to directly measure the activity levels of ^(131)I in the thyroids of the staff.The intake of ^(131)I was estimated,and the annual committed effective dose was derived.Results Among these 50 nuclear medicine staff,7 individuals were found to have detectable levels of ^(131)I in their thyroids,with a detection rate of 14%.There were no statistically significant differences in detection rates among different genders and job positions(P>0.05).Among 7 individuals with detectable ^(131)I,the activity levels ranged from 60.8 to 143.6 Bq,with a mean of 84.1 Bq and a median of 83.7 Bq.The annual effective dose levels for physicians,technicians,and nurses were 0.29 mSv/year,0.38 mSv/year,and 0.54 mSv/year,respectively.Conclusions The annual effective dose values of internal radiation for these 50 nuclear medicine staff in four hospitals in Guangzhou were within the standard limits.However,the risk of internal radiation exposure should not be overlooked.Routine monitoring of internal radiation doses among nuclear medicine staff should be conducted to ensure their occupational health.

关 键 词：核医学工作人员 甲状腺 碘-131(^(131)Ⅰ) 内照射 

分 类 号：R144[医药卫生—公共卫生与预防医学] X591[环境科学与工程—环境工程]