Can ultrasonography differentiate anastomotic and non-anastomotic biliary strictures after orthotopic liver transplantation- a single‐center experience

PurposeTo evaluate the role of ultrasonography (US) in differentiating anastomotic biliary strictures (AS) and non-anastomotic (NAS) after orthotopic liver transplantation (OLT).MethodThis retrospective study included 1259 OLT recipients between 2005−2018. Seventy-six with 103 were analyzed. The reference standard was cholangiography. sensitivity, specificity, accuracy US evaluated.ResultsThere significant differences AS NAS groups (p < 0.001) for skipped irregular dilatation intrahepatic bile duct visualization hilar lumen. better imaging feature poorly visualized non- visible luminal contour. specificity 94.2 %, 84.2 % 88.9 respectively. Combined two predictors greatly increased to 93.4 while diminished its sensitivity accuracy.ConclusionUS is useful efficient differentiate OLT.