Costa P Fragoso, Reinhardt M, Poppe B
Clinic for Nuclear Medicine, Pius-Hospital, Medical Campus, Carl von Ossietzky University, Oldenburg, Germany.
University Clinic for Medical Radiation Physics, Pius-Hospital, Medical Campus, Carl von Ossietzky University, Oldenburg, Germany.
Radiat Prot Dosimetry. 2018 May 1;179(3):291-298. doi: 10.1093/rpd/ncx276.
The purpose of this study was to assess the occupational radiation exposure arising from positron emission tomography combined with X-ray computed tomography (PET/CT) procedures. From 2009 through the end of 2014, in a team of six technologists, personal dosimetry was performed using electronic personal dosemeters and film badge dosemeters. The technologists registered the separate exposure after each PET/CT operational step, which included radiopharmaceutical arrival, dispensing in individual syringes, injection and patient positioning.From the total of 3024 PET/CT procedures, 2142 were available for analysis. The personal dose equivalent for the technologists performing PET/CT ranged from 11.5 nSv/MBq to 23.8 nSv/MBq. Whole-body radiation dose originated mainly from radiopharmaceutical injection (41.5%) and patient positioning (51.1%). The sources of occupational exposure were successfully identified for PET/CT procedures. Record keeping using on-site occupational dosimetry is a useful tool for exposure optimisation.
本研究的目的是评估正电子发射断层扫描结合X射线计算机断层扫描（PET/CT）程序所产生的职业辐射暴露。从2009年到2014年底，在一个由六名技术人员组成的团队中，使用电子个人剂量计和胶片剂量计进行个人剂量测定。技术人员在每个PET/CT操作步骤后记录单独的暴露情况，这些步骤包括放射性药物到达、分装到单个注射器、注射和患者定位。在总共3024例PET/CT程序中，有2142例可供分析。进行PET/CT操作的技术人员的个人剂量当量范围为11.5纳希沃特/兆贝可至23.8纳希沃特/兆贝可。全身辐射剂量主要源于放射性药物注射（41.5%）和患者定位（51.1%）。成功识别了PET/CT程序的职业暴露源。使用现场职业剂量测定进行记录保存是优化暴露的有用工具。
