ARDMS
SPI
Q1:
Which statement describes the purpose of using a spectral Doppler wall filter?
○
A
To widen the area in which the Doppler shift is sampled○
B
To clean up the audio signals○
C
To eliminate the higher velocity signals○
D
To eliminate the lower velocity signals
ARDMS
SPI
Q2:
Which setting is the most likely cause of the artifact displayed in this image?
○
A
Color gain set too low○
B
Color gain set too high○
C
Velocity scale set too high○
D
Velocity scale set too low
ARDMS
SPI
Q3:
A Doppler shift is 10,000 Hz at an angle of flow of 60 degrees. What is the Doppler shift at 0 degrees?
○
A
20,000 Hz○
B
10,000 Hz○
C
5,000 Hz○
D
2,500 Hz
ARDMS
SPI
Q4:
Which settings would produce the best temporal resolution?
○
A
More focal zones and shallower depth○
B
More focal zones and deeper depth○
C
Fewer focal zones and shallower depth○
D
Fewer focal zones and deeper depth
ARDMS
SPI
Q5:
Which pulsed-wave Doppler adjustment would be appropriate to correct the aliasing seen in this image?
○
A
Increase the spectral Doppler gain.○
B
Decrease the spectral Doppler gain.○
C
Increase the Doppler pulse repetition frequency.○
D
Decrease the Doppler pulse repetition frequency.