Spectral broadening suggest:
a. laminar flow
2 b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer
The percentage of time that the ultrasound instrument is emitting ultrasound is called:
a. PRF
3 b. pulse duration
c. pulse repetition period
d. duty factor
Multiple echoes, equally spaced originating from a gas bubble is called:
a. comet tail
4 b. ring down
c. slice thickness artifact
d. multipath
ARDMS SPI Exam
1/6
, 9/9/24, 3:25 AM
Don't know?
Terms in this set (60)
Which gain will increase the risk of a. transmit
bioeffects?
a. transmit
b. receive
c. gain
d. overall gain
Which of the following is considered the e. digital scan converter
memory of an ultrasound instrument?
a. pulser
b. transducer
c. receiver
d. beam former
e. digital scan converter
f. display monitor
Spectral broadening suggest: b. turbulent flow
a. laminar flow
b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer
With pulse wave Doppler axial resolution: degrades
What color is usually use in color flow green
Doppler variance map to indicate turbulent
flow?
Doppler high pass filter eliminates: high amplitude signals; low velocity flow
The Doppler wall filter is considered a: high pass filter
The Nyquist Limit is equal to: c. PRF/2
a. propagation speed x frequency
b. propagation speed/ wavelength
c. PRF/2
d. 4xV^2
Multiple echoes, equally spaced originating b. ring down
from a gas bubble is called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath
An increase in red blood cell velocity will_____ a. increase
the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted
ARDMS SPI Exam
2/6
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