4630 Do patients with a low suspicion of biliary and pancreatic disease need mrcp? a prospective study using ercp as gold standard.

Background : An increasing number of studies has shown a high accuracy rate of magnetic resonance cholangiopancreatography (MRCP) in comparison with ERCP in unequivocal disease. The aim of the present prospective study was to evaluate MRCP in the diagnosis of pancreatic and biliary disease (PD and BD) in patients with a low clinical suspicion. Patients and Methods : 60 patients with a low suspicion of PBD (clinical symptoms, elevated enzymes of Results : see Table and footnotes. Conclusions : In patients with a low suspicion of PBD referred for ERCP, prior MRCP is less sensitive than specific. About 10-20% of cases needing ERCP would have been missed when MRCP would have been used fpor decision making.