Vascular complications after adult living donor liver transplantation: Evaluation with ultrasonography

Figure 2 Portal vein stenosis in a 40-year-old woman who underwent right-lobe living donor liver transplantation. A:Gray-scale ultrasound detected a stenotic region in the portal vein (arrow); B:Color Doppler ultrasound showed disturbance of the blood flow at the stenotic site (arrow); C: Spectrum Doppler ultrasound showed that the blood flow velocity at the stenotic was 128 cm/s; D: Spectrum Doppler ultrasound showed that the blood flow velocity at a pre-stenotic segment of the portal vein was 19.8 cm/s. The ratio between stenotic and pre-stenotic flow was significantly greater than 4:1.