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SPI - ARDMS Mock Exam 2022/2023 - Question And Answers
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SPI - ARDMS Mock Exam 2022/2023 - Question And AnswersWhich of the following describes the difference between side lobes and grating
lobes? Correct Ans ~ Grating lobes are seen with arrays and side lobes are seen
with single element probes
Color Doppler is evaluated with what type of phantom? Correct Ans ~ Fluid
filled phantom
If the ultrasound image is too black and white, which of the following will add
more levels gray to the image? Correct Ans ~ Decrease rejection levels
If you obtain a peak velocity of 60 cm/s with the Doppler correction angle set to 0
degrees and it should have been set at 60 degrees, what is the actual velocity in the
vessel? Correct Ans ~ 120 cm/s
The matching layer for a transducer is usually made of plastic and is approximately
_____________. Correct Ans ~ 1/4 of the probe wavelength in thickness
What is the twinkle artifact? Correct Ans ~ Mosaic colors displayed in a linear
pattern posterior to a dense object, such as a renal stone
The AIUM has stated that there have been no confirmed reports of thermal
bioeffects to living mammals with ultrasound exposure, if the temperature rise in
tissue is less than: Correct Ans ~ 2 degrees Celsius
Increasing the number of pulses in a color packet will: Correct Ans ~ increase
frame time
Harmonic Imaging leads to: Correct Ans ~ Degraded image clutter
____________ uses the amplitude of the Doppler shift and the intensity of the red
blood cells to be able to generate color on the image independent of the angle
insonation Correct Ans ~ Power Doppler
What effect does frequency compounding have on the image? Correct Ans ~
reduce speckle artifact
, Tissue Doppler imaging is commonly used in ___________ Correct Ans ~
echocardiography
If you change from a 4 MHz to 2 MHz transducer frequency what happens to hte
detected Doppler shift? Correct Ans ~ It will decrease by 50%
Which of the following console controls can be used to increase the number of
scan lines used in a color image? Correct Ans ~ persistence
What system control should be turned off when attempting to demonstrate
posterior shadowing from a suspected renal or biliary stone? Correct Ans ~
Spatial compounding
The coupling gel is used for ultrasound exams provides the same function as what
transducer component? Correct Ans ~ matching layer
_________ is defined as the time it takes to complete one cycle Correct Ans ~
Period
Glutaraldehyde is used to: Correct Ans ~ disinfect the transducer after a patient
exam
What is the function used with color Doppler analysis to assess the data from
multiple sampling sites and produce a display representing mean flow velocities?
Correct Ans ~ Autocorrelation
Sound energy that arrives at the transducer befor the rest of the original pulse
finishes transmitting will cause what acoustic artifact? Correct Ans ~ Range
ambiguity
Pulse inversion imaging improves _________ while degrading ____________.
Correct Ans ~ Spatial Resolution
Temporal Resolution
If the reflector dimensions are less than the wavelength of the pulse,
________________ occurs. Correct Ans ~ Diffuse scatter
Which of the following will increase spectral broadening on the image? Correct
Ans ~ Increased sample volume size
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