SPECTRUM OF INTRAHEPATIC AND EXTRAHEPATIC BILIARY TREE VARIATIONS BY MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY IN A TERTIARY CARE HOSPITAL OF NORTH EAST INDIA

Abstract

Background: Biliary tree anatomy shows many variations. MRCP is a non–invasive and fast method for direct visualisation of the intra and extrahepatic biliary ducts and the pancreatic duct. Therefore, MRCP is increasingly used for preoperative planning since anatomic variants of biliary tree may increase the complexity of surgical procedures and biliary interventions. The purpose of the study is to know the prevalence of variations in our population and to provide a preoperative knowledge for planning of surgical interventions. MRCP was Materials and Methods: conducted on 100 adult patient and were evaluated retrospectively. All the patients underwent MRCP with a 1.5 Tesla MR machine (GE MR Signa) with 8- channel phased array coils. In 100 adult patients 68 were female and 32 w Results: ere male. Out of 100 patients Huang Type A1 were found in 68 patients [68%], type A2 in 12 patients [12%], type A3 in 9 patients [9%], type A4 in 4 patients [4%] and type A5 in 1 patient. 6 patients [6%] show other type of variations. Intrahepatic and extrahepatic bile duct anatomy is Conclusion: complex with many common and uncommon variations. Preoperative biliary mapping by MRCP is needed to plan the surgery and helpful in reducing biliary complications, postoperative morbidity and mortality