Doppler Mode
XIt is recommended to use lower frequency ultrasound for measurement of faster blood flows.
XThe size of the sample volume is limited by the axial direction of the ultrasound.
XUsing lower frequency ultrasound increases penetration.
XThe accuracy of time measurements can be increased when the sweep velocity is increased.
XThe accuracy of velocity measurements can be increased when the vertical scale is set to smaller values.
XIt is most important to use an optimal Doppler angle to enhance the accuracy of velocity measurements.