Risk factors of negative diagnosis of MRCP in acute biliary pancreatitis patients with choledocholithiasis

Assessment of the presence of choledocholithiasis is crucial among acute biliary pancreatitis (ABP). Magnetic resonance cholangiopancreatography (MRCP) and endoscopic ultrasonography (EUS) are widely used to identify the gallstones of common bile duct (CBD). EUS provides better diagnostic accuracy and sensitivity than MRCP but carries a certain risk due to sedation. We investigated the risk factors of negative diagnosis of MRCP in ABP patients with choledocholithiasis for better selection of MRCP or EUS.