An 8 MHz transducer with a pulse of repetition frequency of 5,000 Hz is imaging to a depth of 7 cm. What is the Nyquist frequency?  

In Fig. 19.35, in which direction is blood flowing through the vessel?

The frequency at which aliasing occurs is called

An 8 MHz transducer with a pulse repetition frequency of 5,000 MHz measures a Doppler shift of 7 kHz. The study is repeated with a 4 MHz transducer. What Doppler shift will be measured?

Choose the covalent compound(s).

At what angle between the sound beam and the direction of motion will the Doppler shift be closest to zero?

Venous flow in the legs correlates with movement of the ___________.

The relationship between flow, resistance and pressure gradient can be demonstrated in the following formula:  

Which of the following fluids would be considered the most viscous? 

When a patient is supine and all body parts are level to the heart, the hydrostatic pressure is