The gold standard for the definitive diagnosis of the extrahepatic biliary atresia is
Biliary atresia Evaluation of biliary anatomy begins with ultrasound Other imaging modalities such as HIDA scintigraphy, MRCP and ERCP have been used with varying success Although these are useful adjuncts, liver biopsy is gold standard for the diagnosis of biliary atresia and can safely be done percutaneously under local anaesthesia Ref: Sabiston 20th edition Pgno : 639
Per operative cholangiography
Hepatobiliary scintigraphy
Alkaline phosphatase level
Liver biopsy
G.I.T