Al-Esaei Abdulrahman M, Khalil Magdy M, El Shazly Raed M, Kany Amr M I, Saleh Emran Eisa, Elmaghraby Sharif
Department Physics, Faculty of Science, Al-Azhar University, Cairo, Egypt.
School of Biotechnology, Badr University in Cairo, Badr City, Cairo, Egypt.
Curr Radiopharm. 2022;15(4):320-326. doi: 10.2174/1874471015666220413114927.
Nuclear medicine or diagnostic radiology personnel are always exposed to low-level radiation from radionuclides used in medical diagnostics, which lead to potential biological hazards or effects.
External exposure for workers in two nuclear medicine centers was measured by recruiting 120 patients.
Three nuclear medicine examinations were performed using F18-FDG PET/CT,Tc- MDP bones scan, and Tc thyroid scan by a digital radiation dosimeter.
The average received accumulative radiation dose for workers was found to be 0.838±0.17, 0.527±0.11, and 0.270±0.05 µSv for F18-FDG PET/CT, Tc-MDP bones scan, and Tc thyroid scan, respectively. The annual effective dose for workers was estimated to be 2.09±0.42, 1.34±0.27, and 0.68±0.14 mSv, respectively. Moreover, the average patient-to-staff dose coefficients were found to be 0.024±0.005, 0.003±0.001, and 0.007±0.002 µSv m/MBq h for F18- FDG PET/CT, Tc-MDP bones scan, and Tc thyroid scan, respectively.
It is clear from the results that the radiation doses received by workers during the nuclear medicine imaging examinations were less than the doses recommended by the International Commission on Radiological Protection (ICRP) for such examinations.
核医学或诊断放射学人员总是会接触到医学诊断中使用的放射性核素产生的低水平辐射，这会导致潜在的生物危害或影响。
通过招募120名患者来测量两个核医学中心工作人员的外照射剂量。
使用数字辐射剂量仪，通过F18-FDG PET/CT、Tc-MDP骨扫描和Tc甲状腺扫描进行三项核医学检查。
发现F18-FDG PET/CT、Tc-MDP骨扫描和Tc甲状腺扫描中工作人员的平均累积辐射剂量分别为0.838±0.17、0.527±0.11和0.270±0.05微希沃特。工作人员的年有效剂量估计分别为2.09±0.42、1.34±0.27和0.68±0.14毫希沃特。此外，F18-FDG PET/CT、Tc-MDP骨扫描和Tc甲状腺扫描的平均患者与工作人员剂量系数分别为0.024±0.005、0.003±0.001和0.007±0.002微希沃特·米/兆贝克勒尔·小时。
从结果可以清楚地看出，核医学成像检查期间工作人员所接受的辐射剂量低于国际放射防护委员会（ICRP）为此类检查推荐的剂量。
