Chapter 14

Question 1

All of the following are components of an ultrasound system except:

Answer 1

Altenator

Question 2

This type of pulser generates a constant electrical signal in the form of a sine wave:

Answer 2

Continuous wave

Question 3

This type of pulser generates a single electrical spike, which ultimately creates a single pound pulse:

Answer 3

Pulsed wave, single crystal

Question 4

This type of pulser generates numerous electrical spikes, which ultimately create a single sound pulse:

Answer 4

Pulsed wave, phased array

Question 5

The acoustic power of a sound beam emitted from a transducer is determined by the _______ of the pulser’s signal.

Answer 5

Voltage

Question 6

All of the following are functions of the receiver except:

Answer 6

Attenuation

Question 7

Phase these functions in the order in which the ultrasound system performs them:

Answer 7

Amplification
Compensation
Compression
Demodulation
Reject

Question 8

T or F. Amplification process all reflected signals in a similar manner.

Answer 8

True

Question 9

T or F. Compensation process all reflected signals in a similar manner.

Answer 9

False

Question 10

Which of the following choices is best when the image on your ultrasound system displays reflectors only in a region far from the transducer but no reflectors in a region close to the transducer?

Answer 10

Adjust the system’s compensation

Question 11

Which of the following choices is best when the image on your ultrasound system i saturated (too bright everywhere)?

Answer 11

Decrease the output power

Question 12

Which of the following choices is best when the image on your ultrasound system displays only reflectors in a region close to the transducer but no reflectors that are deep?

Answer 12

Adjust the system’s compensation