Department of Physics, Faculty of Women for Arts, Science and Education, Ain-Shams University, Cairo, Egypt.
Radiation Protection Department, Nuclear and Radiological Regulatory Authority (ENRRA), Nasr City, Cairo, Egypt.
Radiat Environ Biophys. 2020 Nov;59(4):743-748. doi: 10.1007/s00411-020-00862-x. Epub 2020 Jul 16.
Those working in interventional cardiology are exposed to varying radiation doses during diagnostic and interventional procedures. The work presented in this paper aimed to monitor the effective doses received by different categories of medical staff members practicing interventional cardiology procedures including senior cardiologists, junior cardiologists, anesthetists and nurses. Thermo-luminescence dosimeter (TLD) badges that consisted of lithium fluoride doped with magnesium and titanium were used to quantify radiation doses. Measurements were performed with the dosimeters mounted under and above leaded aprons worn by medical staff. The results revealed that the effective doses to senior cardiologists were the highest compared to those to other participating staff members, due to their position close to the X-ray tube. The average daily effective doses for senior cardiologists, junior cardiologists, anesthetists and nurses were higher for dosimeters located above the aprons than those for dosimeters located under the aprons. Above the apron, the average effective doses accumulated during the study period were 0.44 ± 0.06, 0.34 ± 0.05, 0.29 ± 0.03 and 0.29 ± 0.04 mSv, respectively; whereas, under the apron, they were 0.20 ± 0.02, 0.18 ± 0.02, 0.17 ± 0.02 and 0.18 ± 0.02, respectively. Also, the fluoroscopy time was correlated with the dose acquired, especially for senior cardiologists. It is concluded that doses to senior cardiologists are quite high, and that many variables can affect staff exposure such as distance, direction, procedure and skills.
从事介入心脏病学工作的人员在进行诊断和介入操作时会受到不同剂量的辐射。本文旨在监测包括资深心脏病专家、初级心脏病专家、麻醉师和护士在内的介入心脏病学从业人员所接受的有效剂量。本文使用的是掺镁和钛的氟化锂热释光剂量计 (TLD) 来测量辐射剂量。将剂量计安装在医务人员佩戴的含铅围裙下方和上方进行测量。结果表明，与其他参与人员相比，由于靠近 X 射线管，资深心脏病专家的有效剂量最高。与位于围裙下方的剂量计相比，位于围裙上方的剂量计测量到的资深心脏病专家、初级心脏病专家、麻醉师和护士的平均日有效剂量更高。位于围裙上方的剂量计在研究期间累计的平均有效剂量分别为 0.44±0.06、0.34±0.05、0.29±0.03 和 0.29±0.04 mSv；而位于围裙下方的剂量计的相应数值分别为 0.20±0.02、0.18±0.02、0.17±0.02 和 0.18±0.02 mSv。此外，透视时间与剂量的累积也有相关性，这在资深心脏病专家中尤为明显。结论是，资深心脏病专家所接受的剂量相当高，许多变量都会影响工作人员的暴露，如距离、方向、操作和技能。
