Risk assessment for thyroid 131I exposure among nuclear medical staff
10.3760/cma.j.cn121094-20200930-00549
- VernacularTitle:核医学工作人员甲状腺 131I内照射风险评估
- Author:
Yan ZHANG
1
;
Qishan ZHENG
;
Lihua HUANG
;
Senxing ZHENG
;
Weiqi WEI
Author Information
1. 350025 福州，福建省职业病与化学中毒预防控制中心
- Keywords:
Nuclear medicine;
Iodide-131;
Internal exposure;
Aerosol;
Thyroid gland;
Risk assessment
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2021;39(11):851-854
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the main risk factors and to assess the risk of thyroid 131I exposure among nuclear medical workers. Methods:From March to October in 2019, cluster sampling was adopted to collect the number of 131I automatic packer and patients treated for thyroid cancer, hyperthyroidism and liven cancer used 131I, the practicing categories, job rotation and 131I operation condition of nuclear medical staff were also investegated in the 21 nuclear medicine hospitals in Fujian Province that carried out 131I nuclide diagnosis and treatment in 2018. 131I aerosol and personnel thyroid 131I were measured in 20 hospitals using 131I for thyroid cancer or hyperthyroidism. The main risk factors leading to thyroid 131I exposure of nuclear medical staff were found and aninternal exposure risk assessment model was established. Results:The detection rate of 131I aerosol and personnel thyroid 131I were 80.0% (16/20) and 25.5% (62/243) in 20 hospitals. The situation of packaging and administration about 131I in the nearly 10 effective half-life, the concentration of 131I aerosol in the nuclear medicine workplace, the number of patients treated with 131I for thyroid cancer or hyperthyroidism were the main risk factors leading to thyroid 131I internal exposure ( OR=5.857, 6.808, 1.983, 1.150, P<0.05) . Conclusion:131I exposure is common among nuclear medical workers, attention should be paid to the protection of internal radiation, strengthen the control of main risk factors, so as to reduce the risk of internal radiation.
