Magnetic resonance cholangiopancreatography as a diagnostic tools to diagnose biliary atresia at Dr.Soetomo hospital

摘要

Cholestasis jaundice results from diminished bile flow and/or excretion, and caused by a number of disorders such as biliary atresia (BA). Magnetic resonance cholangiopancreatography (MRCP) is widely accepted as one of the modalities for biliary system imaging; however, liver biopsy still generally used for BA diagnosis, especially in developing countries. This aim study was to evaluate the diagnostic value of biliary atresia from MRCP compared to the result of a liver biopsy. A cross-sectional for diagnostic study documented of hospitalized patients from June 2014 to June 2015. All patients had MRCP and liver biopsy examination. The collection of data including age, gender, clinical manifestation and the result of MRCP and liver biopsy with ROC to evaluate the sensitivity and specificity was done. Liver biopsy revealed of biliary atresia was made based on proliferation, degeneration, and fibrosis of bile ducts. ROC to evaluate the sensitivity and specificity was done. The sensitivity, specificity, negative predictive value, positive predictive value of MRCP in diagnosing BA were calculated. There were 16 patients enrolled in this study with a median age of diagnosis was 6 months old (range 3-11). There were nine female patients out of the 16 patient. The median age of jaundice onset was 5 days (range 2-14 days). All patients had hepatomegaly and splenomegaly. Histopathology from liver biopsy revealed biliary atresia in 12 patients. From the ROC curve, the sensitivity of MRCP was 87.5% and specificity 62.5% with PPV 70% and NPV 80%. Five patients underwent a Kasai procedure and revealed biliary atresia. MRCP is sensitive but not specific for diagnosing BA, and MRCP has moderate sensitivity and specificity for BA diagnosis.