Preoperative MRCP Compared with Intraoperative Cholangiography in Assessment of Potential Right Lobe Living Liver Transplantation Donors

Precise illustration of the intra hepatic biliary anatomy and anatomical variant is crucial in pre operative assessment of living right liver donors.Purpose: Is to evaluate the accuracy of Magnetic Resonance Cholangiopancreatography (MRCP) in pre operative assessment of biliary system anatomy in living right liver donors compared to Intra Operative Cholangiography (IOC).Material and Methods: Fifty living liver donors were included in the study underwent MRCP examination. Findings were compared with intraoperative cholangiography. Sensitivity, specificity and accuracy were calculated.Results: MRCP was able to detect anatomical variants in 46 donors. According to Hakki classification; 15 cases (30%) were K1 type, K2a was seen in 9 cases (18%), K2b in 4 cases (8%), K3 a in 15 cases (30%), K4 in 7 cases (14%) with overall sensitivity=88.2%, Specificity=94.2%, Accuracy=92%, PPV=88.2%, NPV=94.5%.It also detected 5 from 10 small sized segmental accessory intra-hepatic biliary ducts.Conclusion: MRCP is a valuble tool in pre-operative assessment of the biliary anatomy variants in potential right liver donors.