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The aim of this study was to identify whether magnetic resonance cholangiopancreatography (MRCP) can be used selectively in patients with acute gallstone pancreatitis to detect choledocholithiasis, based on liver function tests (LFTs) and ultrasonography appearance.

All patients admitted between January 2008 and January 2011 with gallstone pancreatitis (amylase >300u/l) who underwent MRCP were included in the study. LFTs and radiology reports were obtained from the respective computer systems. RESULTS Overall, 173 patients with acute gallstone pancreatitis underwent MRCP and 30% (52/173) showed choledocholithiasis. The mean bilirubin level was significantly higher in those with choledocholithiasis (46 ±5µmol/l vs 36 ±3µmol/l, p=0.0388) although there was no significant difference in alkaline phosphatase (276 ±25iu/l vs 229 ±16iu/l, p=0.1154). However, sensitivity of …