【Objective】 To discussion the findings of MRCP on ischemic-type biliary lesions after liver transplantation. 【Methods】 Thirty-two cases with ischemic-type biliary lesions (ITBL) and nine cases with anastomotic strictures (AS) after liver transplantation on bases of PTC or ERCP examination and pathology were selected. MRCP images of biliary tree were observed. 【Results】 ITBL was classified into three types on the base of the location and range of bile duct lesion: porta hepatis type (Ⅰ type)

extensive type (Ⅱ type) and intrahepatic type (Ⅲ type). Fifteen cases were Ⅰ type. MRCP mainly showed absent or thin bile signal at the level of common bile duct

common hepatic duct

confluence and left or right hepatic duct and second level bile ducts. Thirteen cases were Ⅱ type. Segmental bile signal

irregular stenosis and dilation at the level of intrahepatic and extrahepatic bile ducts was observed on MRCP. Four cases were Ⅲ type. Irregular

segmental and string-of-beads stenosis and dilation at the level of intrahepatic small bile ducts can be seen on MRCP. And 25 ITBL cases (78.1%

25/32) had sludge formation in the lumen of donor common hepatic duct

confluence and left and (or) right hepatic duct. MRCP presents signal 64257;lling defects in the lumen. Porta hepatis effusion and bile lake have 4 and 3 cases

respectively. AS appears on MRCP as local stenosis of anastomosis with dilation of the bile ducts proximal to the stenosis. Three AS patients (33.3%

3/9) had sludge formation in the lumen of bile ducts. 【Conclusions】 MRCP

as a simple

practical and non-invasive way

plays an important role in the diagnosis and classification of biliary complications after liver transplantation with the ability of showing the location and range of bile duct lesion.