Experimental Assessment of Workplace Radiation Exposure in Diagnostic X-ray Medical Imaging Centres in Benin from 2019 to 2020
| Autor: | Florent de Vathaire, Alphonse S. Avocefohoun, Hubert C Hounsossou, Rodrigue S. Allodji, Daniel Sabi Takou, Nadia Haddy, Arnaud Alfred Gbetchedji, Bertin Gbaguidi, Gilles D Houndetoungan, Daton Medenou, Imene Mansouri, Carole Rubino, Olivier Biaou, Thierry C. Marc Medehouenou, Kuassi M Amoussou-Guenou |
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| Přispěvatelé: | Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Institut Gustave Roussy (IGR) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
[SDV]Life Sciences [q-bio] medical imaging Computed tomography Radiation Dosage 030218 nuclear medicine & medical imaging X-ray 03 medical and health sciences 0302 clinical medicine medicine Medical imaging Humans Dosimetry Benin workplace ambient dosimetry Workplace medicine.diagnostic_test Equivalent dose business.industry Public Health Environmental and Occupational Health occupational exposure Radiation Exposure EXAMINATION ROOM 3. Good health Occupational dose Radiography Radiation exposure Cross-Sectional Studies 030220 oncology & carcinogenesis Radiological weapon Emergency medicine business |
| Zdroj: | Annals of Work Exposures and Health Annals of Work Exposures and Health, 2021, 65 (8), pp.988-997. ⟨10.1093/annweh/wxab046⟩ |
| ISSN: | 2398-7316 |
| DOI: | 10.1093/annweh/wxab046⟩ |
| Popis: | The ease of prescribing radiological examinations has prompted an expansion in radiological procedures and, consequently, an increase of occupational dose to medical imaging workers. However, little is known about radiation exposure in the workplace of medical radiology professionals in many countries, and in Benin particularly. The purpose of this study was to assess ambient radiation doses in diagnostic X-ray medical facilities in Benin and to observe whether exposure levels are below reference levels. A total of 72 public and private medical imaging centres participated in a cross-sectional study carried out from June 2019 to February 2020 in Benin. These centres had 59 X-ray, four chest and six computed tomography (CT) scan rooms. A calibrated radiameter able to measure short, pulsed or continuous X fields and gamma/beta (50 nSv to 10 Sv) was used to measure exposure levels in these functional rooms. Scattered X-ray doses and exposure time from radiological examinations both behind the lead glass of the control area to assess the levels of exposure of professionals and outside of the examination room to evaluate the level of exposure of the public (including non-exposed workers) have been provided. Equivalent doses estimated per hour were compared with the reference levels of 7.50 and 0.05 µSv per hour for workers and the public, respectively. At the control area, the mean/median (min-max) equivalent doses were 0.09/0.07 (0.00–0.21), 2.39/0.13 (0.00–75.67), and 228.39/28.65 (0.39–869.75) µSv per hour for the chest, X-ray, and CT-scan rooms, respectively. Among 69 examination rooms, 13.04% of the equivalent dose estimated in the workplace behind the lead glass was greater than 7.50 µSv per hour; 65 out of 69 examination rooms showed that 40.00% of the equivalent dose estimated behind the doors was greater than 0.05 µSv per hour. These results demonstrated that current controls, including leaded glass separating the control panel and leaded doors between the examination room and the corridor, are inadequate to limit radiation exposures. The controls must be upgraded and a dosimetry program should be implemented to monitor exposures of employees, patients, and visitors. |
| Databáze: | OpenAIRE |
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