DOPPLER SPECTRAL WAVEFORM
VELOCITY
VASCULAR IMPEDANCE
BLOOD FLOW TURBULENCE
FLOW DIRECTION
PERFUSION
HEPATOFUGAL
AWAY FROM THE LIVER
TOWARDS THE LIVER
HEPATOPETAL
TO THE LIVER
SYSTOLIC WINDOW
RELATIVELY SIGNAL FREE AREA BETWEEN THE ARTERIAL DOPPLER SHIFT SIGNAL AND THE BASELINE DURING THE SYSTOLIC PORTION OF A DOPPLER SPECTRAL DISPLAY
AN INCREASE IN ECHOES PROPORTIONAL TO THE INCREASE IN TURBULENCE OR FLOW DISTURBANCE
VESSELS SUPPLYING ORGANS THAT DEMAND CONSTANT BLOODFLOW
what kind of resistance is displayed?
High resistance vascular bed
low resistance vascular bed