THE IMPACT OF X-RAY UNIT TYPE USED FOR ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY PROCEDURES ON PATIENT DOSES

• Published in: Radiation protection dosimetry Vol. 171; no. 4; pp. 503 - 508
• Main Authors: Tsapaki, V, Paraskeva, K D, Tsalafoutas, I A, Paspatis, G, Scotiniotis, H, Georgopoulos, P, Finou, P, Karagianis, J A
• Format: Journal Article
• Language: English
• Published: England 01-12-2016
• Subjects: Calibration; Cholangiopancreatography, Endoscopic Retrograde - methods; Fluoroscopy - methods; Humans; Occupational Exposure - analysis; Radiation Dosage; Radiation Monitoring - methods; Radiation Protection - methods; Radiography; Radiography, Interventional - methods; Retrospective Studies; X-Rays
• ISSN: 0144-8420; 1742-3406
• DOI: 10.1093/rpd/ncv465

To investigate whether the X-ray unit type used for interventional endoscopic retrograde cholangiopancreatography (ERCP) procedures may affect patient radiation doses. A total of 471 ERCP procedures performed in 4 hospitals with 4 types of X-ray units were studied. Kerma-area product (KAP), fluoroscopy time (T) and total number of radiographs acquired (F) were recorded. KAP, T and F values exhibited a great variation, ranging from 0.1 to 130.2 Gy cm
(mean 16 Gy cm
), 0.13 to 33.7 min (mean 5.4 min) and 0 to 26 radiographs (mean 3.5), respectively. The respective mean values for the four types of X-ray units that were investigated were as follows: KAP: 17.4, 12.5, 5.6 and 36.3 Gy cm
, T: 4.7, 5.2, 3.8 and 11.5 min and F: 1.7, 7.4, 1.9 and 4.6 radiographs. The type of the X-ray unit seems to significantly affect patient radiation dose, with the C-arm delivering the lowest and the angiography unit the highest patient doses.