The utility of resistance index of distal interlobular arteries in evaluating renal graft function

The correlations of the mean values of resistance index (RI) of the distal interlobular, arcuate, and interlobal arteries of the kidneys were evaluated with HDI 5000 ultrasonographic system using a 2- to 5-mHz scan probe under the power Doppler detection mode in 60 patients with various native renal conditions and 70 renal allografts. The mean values of RIs of the distal interlobular arteries and those of the interlobal arteries in the renal allografts were significantly correlated with the recipients' renal functions (P = .015 and .030, respectively), whereas those of arcuate arteries were not.