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To evaluate the efficacy of transjugular liver biopsy(TJLB) in patients who have undergone dual living donor liver transplantation(LDLT) and analyze the necessity of biopsy from dual grafts.Materials:We assessed results from 173 biopsy sessions in 73 patients including 56 TJLB sessions(28 patients),95 percutaneous biopsy sessions,and 22 0pen biopsy sessions.The TJLB patients had received dual left lobes(n=23),right and left lobes(n=4) and dual left lateral segments(n=l).TJLB samples were taken using a QuickCore biopsy needle or a biopsy forceps in cases with unfavorable vena cava-hepatic venous angle.We analyzed the technical success rate for TJLB and the consistency of histologic diagnosis based on samples from both grafts according to their CT enhancing patterns.Percutaneous and open biopsy samples were also included in the analysis of the consistency of histologic diagnosis.