[Comparative study between magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography in the diagnosis of the pancreatic and biliary obstruction].

Background: The endoscopic retrograde cholangiopancreatography and magnetic resonance cholangiopancreatography were methods used for diagnosis of the diseases in the biliary and pancreatic ducts.

Aim: Compare the diagnostic concordance among, analyzing sensitivity, specificity, positive predictive value, negative predictive value and accuracy.

Patients/methods: There were 41 patients in the studied group, divided in two groups: I--without biliary or pancreatic tract obstruction, and II--with obstruction.