| Sun Gangtao,Wang Fang,Zhang Jianfeng,et al.Analysis of internal exposure of some nuclear medicine staff performing 131I therapy in Hubei province from 2021 to 2023[J].Chinese Journal of Radiological Medicine and Protection,2025,45(6):519-525 |
| Analysis of internal exposure of some nuclear medicine staff performing 131I therapy in Hubei province from 2021 to 2023 |
| Received:September 20, 2024 |
| DOI：10.3760/cma.j.cn112271-20240920-00367 |
| KeyWords:Nuclear medicine 131I Thyroid Internal exposure |
| FundProject:湖北省自然科学基金项目(2023AFB1093);湖北省卫生健康委基金项目(WJ2023M104) |
| Author Name | Affiliation | E-mail | | Sun Gangtao | Department of Radiological Health Monitoring and Evaluation, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Wang Fang | Department of Radiological Health Monitoring and Evaluation, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Zhang Jianfeng | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Ran Li | Yichang Center for Disease Control and Prevention, Yichang 443005, China | | | Zhai Hezheng | Institute of Radiation Medicine Chinese Academy of Medical Sciences, Tianjin 300192, China | | | Mei Liangying | Department of Radiological Health Monitoring and Evaluation, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Zhou Wenshan | Department of Radiological Health Monitoring and Evaluation, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | 14212423@qq.com |
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| Abstract:: |
| Objective To investigate the current status of occupational internal exposure of nuclear medicine staff performing 131I treatment, and explore the related influence factors, so as to provide a basis for protection against internal exposures. Methods A survey was conducted using cluster random sampling method to ascertain all the nuclear medicine staff involved in 131I treatment in nuclear medicine hospitals in Hubei province for the years 2021 to 2023. The in vitro monitoring mesurement was made of the 131I activity in thyroid by using portable gamma spectrometer, and the committed effective dose was estimated. Results The positive detection rate of 131I in treatment staff was between 18.75% and 21.12%, with an average of 20.08%. The highest value found in cleaning and nursing staff in iodine therapy workplaces. The detection rate found in two hospitals were up to 75.61% and 64.71%, respectively. The detection rate was positive for the three consecutive years. There was no statistically significant difference in the committed effective dose between different treatment positions, and the level of internal exposure was lower than the external exposure arising from nuclear medicine practice. Factors affecting detection rate of 131I in thyroid included the amount of 131I used for treatment, and disorder type for treatment, 131I dose, use or otherwise of automated radiopharmaceutical dispenser, and ventilation in treatment rooms. Conclusions Continuous attention should be paid to the internal exposure of nuclear medicine staff for use of 131I for treatment. Ventilation should be provided regularly, as required, to the 131I treatment rooms and active rooms and the staff should wear masks during the relevant working processes. |
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