Gansu Province Center for Disease Control and Prevention, Joint Laboratory of Institute of Radiology, Chinese Academy of Medical Sciences, Lanzhou, China.
Front Public Health. 2022 Dec 5;10:1027782. doi: 10.3389/fpubh.2022.1027782. eCollection 2022.
In general, medical staff who work in nuclear medicine should be entirely safe in their professional environment. Nevertheless, we already know that the working environment of the nuclear medicine staff is not completely safe due to the handling of high amounts of radionuclides for diagnostic and therapy applications, which is especially relevant for I (as a non-sealed source).
The goal of this study was to assess the inhaled I thyroid dose in nuclear medicine workers and to introduce a simple method for internal exposure monitoring.
Using 2-IN2-in NaI (Tl) scintillation spectrometer and its supporting software (InSpector Maintenance Utility and Genie 2000), from 2019 to 2021, internal thyroid irradiation monitoring, an internal thyroid irradiation monitoring investi A NaI (Tl) scintillation spectrometer and its sugation was carried out for 3 consecutive years, between 2019 and 2021, in staff members of nuclear medicine departments engaged with iodine therapy.
I activity was found highest in the thyroid of nuclear medicine workers involved with the manual packaging and delivery of the radioisotope, while it was not detected in staff members involved with the automatic packaging and drug delivery. The activity range was found to be 30.00 ± 6.60-6070.00 ± 1335.40 Bq for the exposed personnel, and the estimated dose was 0.05-6.77 mSv. In 2021, three workers had an annual equivalent dose above 5 mSv.
By monitoring the thyroid I in staff members of the nuclear medicine department, it was found that there are I internal occupational exposure risks. The best solution is automatic packaging and drug delivery.
一般来说，从事核医学工作的医务人员在其职业环境中应是完全安全的。然而，我们已经知道，由于诊断和治疗应用中要处理大量的放射性核素，核医学工作人员的工作环境并非完全安全，这对于 I（非密封源）尤其如此。
本研究的目的是评估核医学工作人员吸入 I 的甲状腺剂量，并介绍一种简单的内部暴露监测方法。
使用 2-IN2-in NaI（Tl）闪烁谱仪及其配套软件（InSpector 维护实用程序和 Genie 2000），于 2019 年至 2021 年，对从事碘治疗的核医学科工作人员进行了连续 3 年的内部甲状腺照射监测和内部甲状腺照射监测调查。
发现从事放射性同位素手动包装和分发的核医学工作人员的甲状腺中 I 活性最高，而从事自动包装和药物输送的工作人员则未检测到 I 活性。暴露人员的 I 活性范围为 30.00±6.60-6070.00±1335.40 Bq，估计剂量为 0.05-6.77 mSv。2021 年，有 3 名工作人员的年当量剂量超过 5 mSv。
通过监测核医学科工作人员的甲状腺 I，发现存在 I 内部职业暴露风险。最佳解决方案是自动包装和药物输送。
