title: PATIENT DOSE DURING THERAPEUTIC ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY PROCEDURE.
abstract: Endoscopic retrograde cholangiopancreatography (ERCP) is a standard technique for the diagnosis and treatment of disorders of the pancreas or bile ducts. The aim of this study was the measurement of the radiation dose to patients during therapeutic ERCP procedures, in order to estimate the patient effective dose (ED). Fifteen patients were studied using a fluoroscopy system equipped with automatic brightness control and pulse fluoroscopy mode. Fluoroscopy time (FT), cumulative dose (Ka,r) and air kerma-area product (PKA) were collected for ERCP procedures. The ED was calculated from PKA values. The FT was ranged from 0.68 to 5.57 min, with the mean value of 2.50 min; the Ka,r was ranged from 2.22 to 19.10 mGy, with the mean value of 7.71 mGy; and the PKA was ranged between 0.59 and 5.10 Gycm2, with the mean value of 2.03 Gycm2. The ED ranged from 0.11 to 0.97 mSv, whilst the mean and median ED values were 0.39 and 0.32 mSv, respectively. FT and radiation dose to the patients were either comparative or significantly lower than those previously reported.
authors.affiliation: Department of Medical Physics, School of Medicine, University of Patras, Patras 265 04, Greece.
authors.forename: Anastasia C
authors.initials: AC
authors.lastname: Hadjiconstanti
authors.affiliation: Department of Medical Physics, School of Medicine, University of Patras, Patras 265 04, Greece.
authors.forename: Gerasimos A T
authors.initials: GAT
authors.lastname: Messaris
authors.affiliation: Department of Gastroenterology, School of Medicine, University of Patras, Patras 265 04, Greece.
authors.forename: Konstantinos C
authors.initials: KC
authors.lastname: Thomopoulos
authors.affiliation: Department of Medical Physics, School of Medicine, University of Patras, Patras 265 04, Greece.
authors.forename: George S
authors.initials: GS
authors.lastname: Panayiotakis
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde; D005471:Fluoroscopy; D006801:Humans; D011829:Radiation Dosage