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URR mock exam 1 SPI Questions and Answers (100% Pass)

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___ is defined as specific area or location where Doppler shift info is being obtained. A. spectral broadening B. nyquist limit C. sample volume D. spectral window C. sample volume Spatial resolution is: A. the minimum reflector separation required to produce separate echos. B. highest w...

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  • November 18, 2024
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URR mock exam 1 SPI Questions
and Answers (100% Pass)
____ is defined as specific area or location where Doppler shift info is being

obtained.


A. spectral broadening


B. nyquist limit


C. sample volume


D. spectral window


✓ C. sample volume




Spatial resolution is:


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


✓ A. the minumum reflector separation required to produce echos




Which of the following Doppler angles would lead to the most significant error

in estimation of the flow velocity?


Master01 |Excellent Study Material| Latest update

, 1|Page | © copyright Master01| Grade A+

A. 25


B. 45


C. 65


D. 80


✓ D. 80




which of the following necessary machine setting 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


✓ B. mechanical index set to 0.3 or lower




How many pulses are needed per scan line in order to generate a single

frame of color Doppler?


A. 6


B. 1


C. 16


D. 3

Master01 |Excellent Study Material| Latest update

, 1|Page | © copyright Master01| Grade A+

✓ D. 3




The rectus abdominis muscles are associated with ____, 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


✓ D. refraction artifact, mirror image artifact




When evaluating a suspected arterial stenosis, a doppler angel of ____

degrees will produce the most accurate flow velocity.


A. 0


B. 30


C. 60


D. 90


✓ A. 0




Increasing the angle of electronic steering causes _____ production of lobe

artifact.


Master01 |Excellent Study Material| Latest update

, 1|Page | © copyright Master01| Grade A+

A. increased


B. decreased


C. no change


D. limited


✓ A. increased




Put the following media in order from lowest to highest according to their

acoustic impedance:


Bone


Air


Liver


Blood


✓ Air, blood, liver, bone




Even and odd harmonic frequencies are created by:


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

Master01 |Excellent Study Material| Latest update

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