Quality Assurance

Question 1

True or False?

Quality assurance evaluations of ultrasound systems should be performed weekly.

Answer 1

False

Question 2

True or False?

Quality assurance evaluations of ultrasound systems can only be performed by biomedical engineers or physical scientists.

Answer 2

False

Question 3

True or False?

Proper quality assurance programs require the assessment of every transducer used in the clinical laboratory.

Answer 3

True

Question 4

Which of the following statements are true of a tissue equivalent phantom? (more than one answer may be correct)

a. it has the same propagation speed as that of soft tissue
b. it attenuates ultrasound at a rate similar to soft tissue
c. embedded in it are solid masses and cystic structures
d. it is the device of choice for quality assurance studies

Answer 4

a. it has the same propagation speed as that of soft tissue

b. it attenuates ultrasound at a rate similar to soft tissue

c. embedded in it are solid masses and cystic structures

d. it is the device of choice for quality assurance studies

Question 5

All of the following may be used to evaluate Doppler systems except:

a. tissue equivalent phantom
b. moving belt phantom
c. vibrating string phantom
d. Doppler phantom

Answer 5

a. tissue equivalent phantom

Question 6

Which modes of Doppler may be assessed with a Doppler phantom?

a. color flow Doppler
b. pulsed Doppler
c. power mode Doppler
d. continuous wave Doppler
e. all of the above

Answer 6

e. all of the above