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URR mock exam 1 SPI Practice Questions and Answers
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URR mock exam 1 SPI Practice Questions and Answers ____ 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 - Answer-C. sample volume Spatial resolution is: A. the minimum reflector s...

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  • October 7, 2024
  • 46
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • urr mock exam 1 spi practice questions and answers

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EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024

URR mock exam 1 SPI Practice
Questions and Answers

____ 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 - Answer✔✔-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 - Answer✔✔-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?

A. 25

B. 45

C. 65

D. 80 - Answer✔✔-D. 80




1/46

,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
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 - Answer✔✔-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 - Answer✔✔-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 - Answer✔✔-D. refraction artifact, mirror

image artifact

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

produce the most accurate flow velocity.

2/46

,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
A. 0

B. 30

C. 60

D. 90 - Answer✔✔-A. 0

Increasing the angle of electronic steering causes _____ production of lobe artifact.

A. increased

B. decreased

C. no change

D. limited - Answer✔✔-A. increased

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

impedance:

Bone

Air

Liver

Blood - Answer✔✔-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 - Answer✔✔-B. non-linear sound wave

propagation

what type of transducer array has the fewest numbers of elements?

3/46

, EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
A. linear phased array

B. annular array

C. curvilinear sequential array

D. mechanical transducer - Answer✔✔-B. annular array

______ artifact is caused by refraction and results in subtle image degradation.

A. comet tail

B. scatter

C. misregistration

D. multipath - Answer✔✔-D. multipath

Which of the following will improve lateral resolution at all depths on the image?

A. dynamic transmit focusing

B. dynamic receive focusing

C. decrease probe frequency

D. use >3 focal zones - Answer✔✔-B. dynamic receive focusing

which of the following units is used to describe beam intensity?

A. dB/cm/MHz

B. dB

C. mW/cm 2

D. mW - Answer✔✔-C. mW/cm 2

which of the following parameters cannot be evaluated by the AIUM test object?

A. depth calibration

B. distance calibration

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