Senior interventional cardiologists are exposed to higher effective doses than other staff members
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Senior interventional cardiologists are exposed to higher effective doses than other staff members H. A. Abdel Ghany1 · H. M. Diab2 · Asmaa Salah2 · Ahmed A. Taha2 Received: 24 March 2020 / Accepted: 11 July 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract 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. Keywords Effective dose · Thermo-luminescence dosimeter · Occupational exposure · Interventional cardiac procedures
Introduction The beneficial use of ionizing radiation has increased in recent years, especially in both diagnostic and therapeutic medical practices. Interventional cardiology is a sub-discipline of cardiology that deals specifically with catheterbased procedures or treatments of heart diseases. Worldwide, interventional cardiology is the third largest contributor to the radiation dose of patients, after computed tomography (CT) and radiotherapy directly received by cancer patients (Leyton et al. 2014). As examples for interventional cardiology, coronary angiography is commonly used in diagnosis; whereas, angioplasty is employed mainly in the treatment of coronary artery disorders. In contrast to radiotherapy, * H. A. Abdel Ghany [email protected] 1
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
2
radiation doses applied to patients during diagnostic procedures are no
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