FIGURE 1. Algorithm for determining the extent of donor hepatectomy in right lobe living donor liver transplantation, with or without the middle hepatic vein (MHV). DRBW, donor-recipient body weight ratio; RLRSLV, right lobe-to-recipient standard liver volume estimate; V5, draining vein of segment V; V8, draining vein of segment VIII; RHV, right hepatic vein.