Post-operative imaging in liver transplantation: State-of-the-art and future perspectives

Figure 6 Normal findings doppler ultrasound after the transplant. A: Normal hepatic artery waveform shows a rapid systolic upstroke followed by continuous diastolic flow; B: Portal flow is continuous, hepatopetal and monophasic, with mild respiratory variations that may be masked by increased velocity and flow turbulence, sometimes persisting even in the late post-operative period. PSV: Peak systolic velocity; EDV: End diastolic velocity; RI: Resistance index.