Seema Nayab, Ameet Jesrani, Riaz Hussain Awan, Kosar Magsi.
Diagnostic accuracy of MRCP in obstructive biliopthy taking ERCP as gold standard. Experience at tertiary care hospital of developing country.
Professional Med J Jan ;29(03):285-90.

Objective: To determine the accuracy of magnetic-resonance-cholangio-pancreatography (MRCP) in comparison with the endoscopic retrograde-cholangio-pancreatography (ERCP) in the diagnosis of obstructive biliopathy. Study Design: Cross Sectional study. Setting: Department of Radiology, Liaquat University of Medical and Health Sciences, Jamshoro. Period: October 2020 to April 2021. Material & Methods: Patients with suspected obstructive biliopathies highlighting need for ERCP were included in this study. MRCP was performed. ERCP was performed by duodeno-videoscope and general electric fluoroscopy. MRCP and ERCP were done which were reviewed by radiologist and were reviewed by radiologist and gastroenterologist and both were to the results of both modalities. Results of obstructive biliopathy from both techniques were compared, according to the pathology found. The sensitivity, specificity, and positive and negative predictive values were calculated. Statistical significance was set at p<0.05 with 95% confidence interval. Results: MRCP had sensitivity, specificity, positive and negative predictive values of 87%, 80%, 83.3% and 84.2% respectively for obstructive biliopathy (choledocholithiasis). Conclusion: MRCP has high diagnostic accuracy for bile duct calculi and is a useful non-invasive technique to diagnose biliary pathologies and avoids unnecessary ERCPs and its complications.

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