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What is the round trip time in soft tissue for an echo from a reflector at a depth of 1 cm?

An 8 MHz transducer with a pulse repetition frequency of 5,000 Hz is imaging to a depth 0f 7 cm. what is the Nyquist frequency?

Analog scan converters __________

Which of the following statement is true regarding a pulsed wave Doppler device?

What is the spatial pulse length of a four-cycle pulse with a wavelength of 0.1 mm?

Plasma is approximately 90% water.

Resistance to blood flow is primarily controlled by ___________

You are using a 5MHz transducer to perform pulsed wave Doppler on the carotid arteries. You change to a 7.5MHz continuous wave Doppler transducer to evaluate blood flow. How will this affect the propagation speed in the soft tissue of the neck?

In imaging, interference effects from acoustic reflections is known as _________.

What part of the ultrasound system is responsible for changing the element function back and forth from transmit to receive?