Resistance of the blood flow depends on ____.

Potential energy may be increased when blood changes speed and direction

Pulsed Doppler does not detect the Doppler shift.

In the image below, how many transmit focal zones are being used?  

Which of the following statements correctly describes power Doppler?

Which of the following techniques is described as a graphic representation of the motion of a structure over time?

Pulse duration is _________ related to bandwidth

Which of the following will improve the color display in the abdominal aorta?

Spatial pulse length is equal to _________

Which technique increases the sharpness of high contrast boundaries?