[Correlation between cholangiopancreatography by magnetic resonance and the endoscopic retrograde colangiopancreatography in hospitalized by biliary lithiasis in the University Hospital San Ignacio (Bogota-Colombia) between 2005 to 2011].

Objective: Determine the grade of agreement between the colangiopancreatography by magnetic resonance (CPRM) and the endoscopic retrograde colangio pancreatography (ERCP) in hospitalized patients by biliary lithiasis in a period of time in a reference hospital.

Material And Methods: Type of study, retrospective evaluation of diagnostic tool, the size of the sample was calculated from the pilot simple and was 320 patients. We recolected 354 patients that urderwent both studies (CPRM and ERCP), to evaluate the correlation between both procedures we used Kappa variation.