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British Journal of Radiology 75 (2002),435-443 © 2002 The British Institute of Radiology

Full Paper

Patient and staff exposure during endoscopic retrograde cholangiopancreatography

N Buls, MSc1, J Pages, PhD1, F Mana, MD2 and M Osteaux, MD, PhD1

Departments of 1 Radiology and Medical Imaging and 2 Gastro-Enterology, Free University Hospital Brussels (AZ-VUB), Laarbeeklaan 101, B-1090 Brussels, Belgium

Despite a number of efforts being put into the radiological protection of both patient and staff during interventional radiological (IR) procedures during recent years, information about radiation exposure during endoscopic retrograde cholangiopancreatography (ERCP) procedures remains scarce. The purpose of this study was to estimate both patient and staff radiation doses during therapeutic ERCP procedures by direct measurement and to compare these results with data from other IR procedures. For 54 patients, effective dose and skin dose were estimated by measuring the dose–area product. For staff, entrance surface doses to the lens of the eye, thyroid and hands were estimated by thermoluminescent dosemeters. A median effective dose of 7.3 mSv and a median entrance surface dose of 271 mGy per procedure were estimated for patients. The gastroenterologist received a median dose of 0.34 mGy to the lens of the eye, 0.30 mGy to the skin at the level of the thyroid and 0.44 mGy to the skin of the hands, per procedure. When comparing the dosimetric quantities presented in this study with data from other IR procedures, it is clear that patient skin doses and doses to staff are high owing to the use of inappropriate X-ray equipment. ERCP requires the same radiation protection practice as all IR procedures. It should be consistently included in future multicentre IR patient and staff dose survey studies at national or international level.




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