Leide-Svegborn S
Medical Radiation Physics Malmö, Lund University, Skåne University Hospital, SE-205 02 Malmö, Sweden.
Radiat Prot Dosimetry. 2012 Apr;149(2):196-206. doi: 10.1093/rpd/ncr213. Epub 2011 May 12.
The radiation exposure of fingers, thyroid and eyes of workers handling radiopharmaceuticals during various nuclear medicine procedures was measured using thermoluminescent dosemeters. Dosemeters were placed on the finger tips of 19 workers on several different occasions for various procedures. Additionally, the routinely determined whole-body doses to various groups of workers were analysed. The finger dose measurements demonstrated clear differences between the various tasks, from 0.0012 µGy MBq(-1) (unpacking and installing (99)Mo/(99m)Tc-generator) to 3.0 µGy MBq(-1) (syringe withdrawal, injection and waste handling of (18)F-FDG). As long as the worker was handling (99m)Tc, the dose to the fingers was well below the ICRP dose limits, even when the activity was high. Special concern should, however, be devoted to the handling of (18)F, since the dose to the fingers could easily reach the dose limits. The estimated dose to eyes and thyroid was well below the dose limits. Since the introduction of the positron emission tomography/computed tomography facility, the annual whole-body dose has increased for those directly involved in the handling of (18)F. The annual whole-body dose of 0.2-2.5 mGy was, however, well below the dose limits.
使用热释光剂量仪测量了从事各种核医学程序的放射性药物处理人员手指、甲状腺和眼睛的辐射暴露情况。在几个不同场合，为19名工作人员的指尖放置剂量仪以进行各种程序。此外，还分析了不同组工作人员常规测定的全身剂量。手指剂量测量结果显示，不同任务之间存在明显差异，从0.0012微戈瑞每兆贝可（拆包和安装钼-99/锝-99m发生器）到3.0微戈瑞每兆贝可（氟-18-氟代脱氧葡萄糖的注射器抽取、注射和废物处理）。只要工作人员处理锝-99m，即使活度很高，手指所受剂量也远低于国际放射防护委员会的剂量限值。然而，对于氟-18的处理应给予特别关注，因为手指所受剂量很容易达到剂量限值。估计眼睛和甲状腺所受剂量远低于剂量限值。自正电子发射断层扫描/计算机断层扫描设备投入使用以来，直接参与氟-18处理的人员的年度全身剂量有所增加。然而，0.2 - 2.5毫戈瑞的年度全身剂量远低于剂量限值。
