Magnetic resonance cholangiopancreatography versus endoscopic retrograde cholangiopancreatography in the diagnosis of choledocholithiasis.

Objective: Endoscopic retrograde cholangiopancreatography (ERCP) has become established as the gold standard in imaging of the biliary tree. Recently, magnetic resonance cholangiopancreatography (MRCP) has been introduced as a new, non-invasive imaging modality for the detection of bile-duct stones and other pathology related to the biliary tract and pancreas. The aim of this study was to determine how MRCP compared with ERCP in the diagnosis of choledocholithiasis.