[Diagnostic performance of biliary ultrasound vs. magnetic resonance cholangiogram in patients with recurrent biliary obstruction.]. / Ultrasonido biliar o colangiorresonancia. Comparación de su rendimiento diagnóstico en coledocolitiasis recurrente.
Rev Gastroenterol Mex
; 74(4): 329-33, 2009.
Article
em Es
| MEDLINE
| ID: mdl-20423762
BACKGROUND: Obstructive jaundice in patients with previous cholecystectomy requires a precise diagnosis. In the diagnostic algorithm, biliary ultrasound (BUS) and magnetic resonance cholangiogram (MRC) are used, although the accuracy of each method is unknown in our setting. No previous comparison of US and MRC in subjects with cholecystectomy has been made. AIM: To determine diagnostic accuracy of BUS and MRC in patients with recurrent biliary obstruction. PATIENTS AND METHODS: Patients with endoscopic retrograde cholangiopacreatography (ERCP) demonstrating recurrent biliary obstruction by stones were included. All patients underwent BUS and MRC. We determined the diagnostic performance of each image study compared with ERCP. RESULTS: Twenty-seven patients with a mean age of 62.9 +/- 17.3 years-old were included. Sensitivity and specificity of BUS were 0.12 and 0.58, respectively. Figures for MRC were 0.88 and 0.82. Diagnostic agreement between ERCP and MRC was k= 0.66 whereas BUS had a k of only 0.26. DISCUSSION: MRC had good diagnostic performance for recurrent choledocolithiasis. BUS demonstrated lower accuracy compared with previous reports, so should not be considered in the initial approach of recurrent choledocus obstruction.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Imageamento por Ressonância Magnética
/
Colangiografia
/
Colestase
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Limite:
Female
/
Humans
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Male
/
Middle aged
Idioma:
Es
Revista:
Rev Gastroenterol Mex
Ano de publicação:
2009
Tipo de documento:
Article
País de publicação:
México