| Ma Jiayi,Zhang Zihao,Zhou Yuanyuan,et al.Preliminary study on occupational internal exposure to 131I among nuclear medicine workers in a hospital in Nanjing[J].Chinese Journal of Radiological Medicine and Protection,2025,45(10):1009-1014 |
| Preliminary study on occupational internal exposure to 131I among nuclear medicine workers in a hospital in Nanjing |
| Received:July 02, 2025 |
| DOI：10.3760/cma.j.cn112271-20250702-00219 |
| KeyWords:Nuclear medicine Internal exposure Nuclear medicine department Thyroid gland 131I |
| FundProject:江苏省卫生计生委卫生标准研究课题(S2017003);江苏省医学重点学科(ZDXK202249) |
| Author Name | Affiliation | E-mail | | Ma Jiayi | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China | | | Zhang Zihao | School of Public Health, Nanjing Medical University, Nanjing 211166, China | | | Zhou Yuanyuan | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China | | | Chen Qun | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China | | | Yang Xiaoyong | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China | | | Wang Jin | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
School of Public Health, Nanjing Medical University, Nanjing 211166, China | | | Shi Xiaodong | Department of Radiation Protection, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China | shixd@jscdc.cn |
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| Abstract:: |
| Objective To investigate the basic situation of occupational internal exposure to 131I among staff in the nuclear medicine department. Methods Direct in-vitro measurements of thyroid doses from internal exposure were conducted for six months on 36 staff members of a hospital's nuclear medicine department in Nanjing using the ORTEC Detective-100 portable high-purity germanium (HPGe) spectrometer. The cumulative effective doses were estimated, and the distribution of internal doses and their relationship with job type and external doses were analyzed. Results During the monitoring period, a total of 203 monitorings were made. Of the monitoring result, 85.7% were below the recording level. Of the result exceeding the recording level, 12.8% were below the investigation level, while 1.5% exceeded the investigation level. The highest personal internal dose during the monitoring period was 2.54 mSv, the lowest was 0.015 mSv, and the median was 0.094 mSv. Conclusions During the monitoring period, 14.3% of the monitored staff had result above the recorded levels. In the working environment of radionuclide treatment, there is no significant difference in the internal dose received between doctors, nurses, technicians, or other relevant personnel. |
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