Takahashi Yasuyuki, Hosokawa Shota, Tsujiguchi Takakiyo, Monzen Satoru, Kanzaki Takao, Shirakawa Koji, Nemoto Ayaka, Ishimura Hayato, Oriuchi Noboru
Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan.
Department of Radiological Technology, Gunma University Hospital, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
Radiol Phys Technol. 2020 Mar;13(1):98-103. doi: 10.1007/s12194-019-00548-0. Epub 2019 Dec 12.
Time-course study of individual dose equivalents of 2-deoxy-2-[F-18]fluoro-D-glucose positron emission tomography (F-FDG PET) was conducted in different hospital workers, and the daily work duties were analyzed. For the measurements, a semiconductor dosimeter was used. The values at intervals of 1 min and 1 h, the monthly cumulative and daily cumulative doses, and trend graphs were acquired with dedicated software and displayed on the reader. The following radiation workers with duties involving maximum external exposure work were included: doctors making diagnoses (4.8 μSv/procedure), nurses removing injection needles (3.1 μSv/procedure), pharmacists performing quality control tests (2.9 μSv/procedure), nuclear medicine technologists assisting patient positioning (6.5 μSv/procedure), and cyclotron engineers performing daily checks (13.4 μSv/procedure). The results of analysis of daily work duties revealed the influencing factors of external exposure dose. To reduce the external exposure dose, investigators should shorten the patient's contact time with the F-FDG source or patient tracer.
对不同医院工作人员进行了2-脱氧-2-[F-18]氟-D-葡萄糖正电子发射断层扫描（F-FDG PET）个人剂量当量的时程研究，并分析了日常工作职责。测量时使用了半导体剂量计。通过专用软件获取1分钟和1小时间隔的值、每月累积剂量和每日累积剂量以及趋势图，并显示在读取器上。纳入了以下职责涉及最大外部暴露工作的辐射工作人员：进行诊断的医生（每次检查4.8μSv）、拔除注射针的护士（每次操作3.1μSv）、进行质量控制测试的药剂师（每次操作2.9μSv）、协助患者定位的核医学技术人员（每次操作6.5μSv）以及进行日常检查的回旋加速器工程师（每次操作13.4μSv）。日常工作职责分析结果揭示了外部暴露剂量的影响因素。为降低外部暴露剂量，研究人员应缩短患者与F-FDG源或患者示踪剂的接触时间。
