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

@entity1 @entity9279
UNASSIGNED: Objetive: Determine the grade of agreement between the colangiopancreatography by magnetic resonance (CPRM) and the endoscopic retrograde colangio pancreatography (ERCP) in hospitalized @entity1 by @entity9279 in a period of time in a ref-erence 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 @entity1 . We recolected 354 @entity1 that urderwent both studies (CPRM and ERCP), to evaluate the correlation between both procedures we used Kappa variation. RESULTS: 354 pacients were included, 226 @entity1 (63.8%), @entity1 128 (36.2%), with mean age of 48 years. There was dilatation of the choledocus by CRMN in 60%, sensibility of 96, 7%, especificity of 40%, Kappa index 0,406 (IC 95%: 0, 32-0, 50) that indicates a moderate agreement. For the presence of choledocus calculi with CPRM was 54%, with sensibility of 72.6%, specificity of 68.3%, Kappa index 0.409 (IC 95%: 0.31-0.51), moderate agreement. For caculi in the gallbladder the kappa index was 0.246 weak. We identify 27% de false negatives for CRMN in detecting choledocusd lithiasis. CONCLUSIONS: The CPRM and ERCP had a moderate correlation according to the Kappa index detecting dilatation and choledocus calculi in our @entity1 . The number of false negatives for cho-ledocolithiasis by CPRM leads us to seek in other prospective aleatory studies like endoscopic biliiopancreatic ultrasonopgraphy to compare the CPRM in @entity1 with intermediate probability for choledoco-lithiasis.
