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URR mock exam 1 SPI With Questions And 100% ALL CORRECT ANSWERS
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JACKLINEURR mock exam 1 SPI With Questions And 100% ALL CORRECT ANSWERS
Terms in this set (164)
____ is defined as specific area or location where C. sample volume
Doppler shift info is being obtained.
A. spectral broadening
B. nyquist limit
C. sample volume
D. spectral window
Spatial resolution is: A. the minumum reflector separation required to produce echos
A. the minimum reflector separation required to
produce separate echos.
B. highest with linear phased arrays.
C. the weakest reflected signal the transducer can
receive
D. another term for slice thickness resolution
URR mock exam 1 SPI
,Which of the following Doppler angles would lead D. 80
to the most significant error in estimation of the flow
velocity?
A. 25
B. 45
C. 65
D. 80
which of the following necessary machine setting B. mechanical index set to 0.3 or lower
with performing a contrast evolution of the heart?
A. harmonic imaging off
B. mechincal index set to 0.3 or lower
C. mechanical index set to 1.0 or greater
D. Low PRF color Doppler setting
How many pulses are needed per scan line in order D. 3
to generate a single frame of color Doppler?
A. 6
B. 1
C. 16
D. 3
The rectus abdominis muscles are associated with D. refraction artifact, mirror image artifact
____, while the diaphragm is associated with ___ _.
A. shadowing, enhancement
B. comet tail, ring down
C. refractive shadowing, lobe artifact
D. refraction artifact, mirror image artifact
When evaluating a suspected arterial stenosis, a A. 0
doppler angel of ___ degrees will produce the most
accurate flow velocity.
A. 0
B. 30
C. 60
D. 90
Increasing the angle of electronic steering causes A. increased
_____ production of lobe artifact.
A. increased
B. decreased
C. no change
D. limited URR mock exam 1 SPI
, 8/8/24, 1:23 PM
Put the following media in order from lowest to Air, blood, liver, bone
highest according to their acoustic impedance:
Bone
Air
Liver
Blood
Even and odd harmonic frequencies are created by: B. non-linear sound wave propagation
A. alternating current to different piezoelectric
elements in the transducer array
B. non-linear sound wave propagation
C. variable timing of the firing of the piezoelectric
elements
D. turbulent flow in the blood vessel
what type of transducer array has the fewest B. annular array
numbers of elements?
A. linear phased array
B. annular array
C. curvilinear sequential array
D. mechanical transducer
______ artifact is caused by refraction and results in D. multipath
subtle image degradation.
A. comet tail
B. scatter
C. misregistration
D. multipath
Which of the following will improve lateral B. dynamic receive focusing
resolution at all depths on the image?
A. dynamic transmit focusing
B. dynamic receive focusing
C. decrease probe frequency
D. use >3 focal zones
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