Tardus parvus hepatic arterial waveform

 

 

 

 

Tardus parvus hepatic arterial waveform. Color duplex US image obtained in a patient who had undergone liver transplantation 24 hours earlier shows slow upslope, broadening of the spectral waveform, and low-peak-velocity flow. This waveform is commonly seen in liver transplant recipients and resolves by 24-48 hours after surgery. When this finding is seen more than 48 hours after the procedure, hepatic artery stenosis or even dissection should be excluded.