MRI and MR cholangiopancreatography characteristics of cystic biliary atresia / 中国医学影像技术

ABSTRACT

Objective To analyze MRI and MR cholangiopancreatography (MRCP) manifestations of cystic biliary atresia (CBA). Methods MRI and MRCP data of 24 CBA infants confirmed with operation and pathology were retrospectively analyzed. MRCP and MRI findings were observed combining with intraoperative radiography and pathological features. Results Cystic structure in the hepatic hilum were found in all 24 infants. T2WI high signal in periportal area was showed in 11 infants. The width of the gallbladder was obviously shorter than the length in 23 infants, while gallbladder was absent in 1 infant. Fibrous plaque in the hepatic portal area was observed in 5 infants. Cystic structure located at hepatic hilum in 22 infants, at the left or right hepatic duct area in 2 infants. The cysts of the hepatic portals area were interlinked with the cystic duct in 18 infants. Conclusion Hepatic hilar cyst, hilar fiber block, morphology of gallbladder and common bile duct in MRCP are important signs for diagnosis of CBA. MRCP has a certain value in early diagnosis of CBA.