| 孙刚涛,王芳,张建峰,等.2021—2023年湖北省部分131I治疗工作人员内照射水平分析[J].中华放射医学与防护杂志,2025,45(6):519-525.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].Chin J Radiol Med Prot,2025,45(6):519-525 |
| 2021—2023年湖北省部分131I治疗工作人员内照射水平分析 |
| Analysis of internal exposure of some nuclear medicine staff performing 131I therapy in Hubei province from 2021 to 2023 |
| 投稿时间：2024-09-20 |
| DOI：10.3760/cma.j.cn112271-20240920-00367 |
| 中文关键词: 核医学 131I 甲状腺 内照射 |
| 英文关键词:Nuclear medicine 131I Thyroid Internal exposure |
| 基金项目: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) |
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| 中文摘要: |
| 目的 了解核医学人员甲状腺131I职业内照射现状,探讨内照射的影响因素,为内照射防护提供依据。方法 选取2021—2023年期间湖北省内开展核医学业务的医院,采用整群随机抽样筛选符合条件医院,并纳入参与碘治疗的所有相关工作人员,利用便携式γ谱仪体外测量甲状腺131I活度,并估算待积有效剂量。结果 碘治疗工作人员甲状腺阳性检出率在18.75%~21.12%之间,平均20.08%;保洁岗与护士岗是碘治疗场所检出率较高的岗位;检出率较高的2家医院达到75.61%和64.71%,且连续3年均被检出;不同岗位间待积有效剂量差异无统计学意义(P>0.05),内照射暴露水平低于核医学外照射剂量水平。131I治疗业务量、业务类型、131I用量、是否使用核素自动分装、病区内通风效果等因素均可能影响甲状腺131I检出率。结论 应持续关注131I治疗工作人员的内照射暴露水平;131I治疗病区与活性室应定时并按需通风,相关工作流程佩戴口罩。 |
| 英文摘要: |
| 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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