The radiation dose of the medical co-workers, patients, and patient's family in the study of nuclear medicine

评价了氟脱氧葡萄糖在PET研究中对医务人员和患者家属进行辐射防护的实用方法。在基础研究中，已知铅和钨对511keV光子的HVL分别为4.1mm和2.61mm。标准注射器（1.6毫米钨）屏蔽减少暴露于F-18仅34.3%。一个典型的PET注射器屏蔽是8.6毫米厚的钨，减少了90%的F-18暴露。在临床研究中，对一名平均剂量为200MBq的患者进行FDG PET研究，对医务人员的辐射剂量平均为0.294 ~ 0.769 uSv。从这些结果来看，我们认为临床PET的启动应该完成实用的方法，使用为PET设计的屏蔽物，控制时间、距离和污染。

Practical methods for the radiation protection of medical co-workers and also patient's family in the PET study with FDG were evaluated.In the basic study, it was known that the HVL of lead and tungsten for 511keV photons was 4.1mm and 2.61mm individually. Standard syringe (1.6mm tungsten) shield reduces the exposure from F-18 by only 34.3%. A typical PET syringe shield is 8.6mm thick of tungsten, reducing the exposure from F-18 by 90%.In the clinical study, the radiation dose to the medical co-workers became average 0.294 to 0.769 uSv for one FDG PET study in patient with mean dose of 200MBq.From these results, it was thought to be that the practical methods, the use of shielding designed for PET and also the control of time, distance, and contamination should be completed to start the clinical PET.