ARDMS SPI Exam A and B New Practice
Questions and Answers (2026) | Complete
Exam Prep Resource | Grade A+
what does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
C.frame rate
D.dynamic range -✓✓B
how is lateral resolution determined for a pulsed-echo system using a tissue-mimicking
test object?
A.by observing spaces between reflectors perpendicular to the beam
B.by observing spaces between reflectors along the beam path
C.by observing position of deepest visible reflector along the beam path
D.by observing position of deepest visible reflector perpendicular to the beam path -
✓✓A
which variable caused the color change from blue to red of the vessel in this image?
A.change in vessel direction
B.color scale set to low
C.turbulent flow
D.severe stenosis -✓✓A
which artifact is indicated by the arrows in this image?
A.shadow produced by the diaphragm
B.acoustic enhancement
C.comet tail
D.mirror image -✓✓C
which control improves the effects of attenuation?
A.dynamic range
B.pulse inversion
C.multiple focal zones
D.time gain compensation -✓✓D?
which doppler angle to flow results in the greatest absolute doppler shift?
A.0 degrees
B.15 degrees
C.45 degrees
D.60 degrees -✓✓A
what term describes blood flow changes in response to respiration?
, A.phasic
B.parabolic
C.spontaneous
D.pulsatile -✓✓A
an increase in which parameter will improve the accuracy of velocity measurements
with autocorrelation?
A.color field of view
B.packet size
C.wall filtering
D.transmitted frequency -✓✓B
which harmonic imaging, how does echo frequency relate to transmitted frequency?
A.half the transmitted frequency
B.equal to the transmitted frequency
C.twice the transmitted frequency
D.four times the transmitted frequency -✓✓C
which statement is most accurate regarding surface rendering three-dimensional
ultrasound imaging?
A.improves accuracy of volume measurement
B.minimizes effect of attenuation artifacts
C.spatial resolution improve when using high resolution mesh
D.feature-based reconstruction store full three-dimensional volume acquired -✓✓B
A.adjust the sweep speed
B.adjust the baseline
C.increasing dynamic range
D.increasing the transmitted frequency -✓✓B
which parameter is most likely to affect spatial resolution?
A.dynamic range
B.beam width
C.system sensitivity
D.depth of visualization -✓✓D
which imaging modality can provide the most accurate measurement of tumor volume?
A.color doppler
B.B-mode
C.A-mode
D.M-mode -✓✓B
according to ALARA (as low as reasonably achievable) guidelines, which parameter
should be minimized?
A.transmit power
Questions and Answers (2026) | Complete
Exam Prep Resource | Grade A+
what does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
C.frame rate
D.dynamic range -✓✓B
how is lateral resolution determined for a pulsed-echo system using a tissue-mimicking
test object?
A.by observing spaces between reflectors perpendicular to the beam
B.by observing spaces between reflectors along the beam path
C.by observing position of deepest visible reflector along the beam path
D.by observing position of deepest visible reflector perpendicular to the beam path -
✓✓A
which variable caused the color change from blue to red of the vessel in this image?
A.change in vessel direction
B.color scale set to low
C.turbulent flow
D.severe stenosis -✓✓A
which artifact is indicated by the arrows in this image?
A.shadow produced by the diaphragm
B.acoustic enhancement
C.comet tail
D.mirror image -✓✓C
which control improves the effects of attenuation?
A.dynamic range
B.pulse inversion
C.multiple focal zones
D.time gain compensation -✓✓D?
which doppler angle to flow results in the greatest absolute doppler shift?
A.0 degrees
B.15 degrees
C.45 degrees
D.60 degrees -✓✓A
what term describes blood flow changes in response to respiration?
, A.phasic
B.parabolic
C.spontaneous
D.pulsatile -✓✓A
an increase in which parameter will improve the accuracy of velocity measurements
with autocorrelation?
A.color field of view
B.packet size
C.wall filtering
D.transmitted frequency -✓✓B
which harmonic imaging, how does echo frequency relate to transmitted frequency?
A.half the transmitted frequency
B.equal to the transmitted frequency
C.twice the transmitted frequency
D.four times the transmitted frequency -✓✓C
which statement is most accurate regarding surface rendering three-dimensional
ultrasound imaging?
A.improves accuracy of volume measurement
B.minimizes effect of attenuation artifacts
C.spatial resolution improve when using high resolution mesh
D.feature-based reconstruction store full three-dimensional volume acquired -✓✓B
A.adjust the sweep speed
B.adjust the baseline
C.increasing dynamic range
D.increasing the transmitted frequency -✓✓B
which parameter is most likely to affect spatial resolution?
A.dynamic range
B.beam width
C.system sensitivity
D.depth of visualization -✓✓D
which imaging modality can provide the most accurate measurement of tumor volume?
A.color doppler
B.B-mode
C.A-mode
D.M-mode -✓✓B
according to ALARA (as low as reasonably achievable) guidelines, which parameter
should be minimized?
A.transmit power
