SPI Practice Exam Questions and Answers 100%
Correct (ARDMS practice tests) | Latest Update
2024-2025
Which term describes blood flow changes in response to respiration?
A. Phasic
B. Parabolic
C. Spontaneous
D. Pulsatile - ANSWER Phasic
What is demonstrated in this image produced by a linear array to placed on a
uniform tissue-mimicking phantom?
A. Time gain compensation not set properly.
B. System has low dynamic range.
C. Transducer crystals are damaged.
D. Focus control is malfunctioning. - ANSWER Transducer crystals are damaged
What is dynamic aperture?
A. Aperture that varies with transmit frequency
B. Aperture that deceases as a function of time
C. Aperture that increases with increasing focal length
,D. Aperture that changes as a function of frame rate - ANSWER Aperture that
increases with increasing focal length
Which variable can cause an acoustic shadow artifact?
A. Small acoustic impedance mismatch
B. Refraction
C. Perpendicular incidence
D. Low attenuation - ANSWER Small acoustic impedance mismatch
What control improved the effects of attenuation?
A. Dynamic range
B. Pulse Inversion
C. Multiple focal zones
D. TGC - ANSWER TGC
What is the potential effect of increasing the PRF?
A. Depth ambiguity
B. Decreased frame rate
C. Poor spatial resolution
D. Decreased penetration - ANSWER Decreased penetration
, How is lateral resolution determined for a pulse-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 - ANSWER By observing spaces between reflectors perpendicular to the
beam
According to ALARA guidelines, which parameter should be minimized?
A. Transmit power
B. Frequency
C. TGC
D. Overall gain - ANSWER Transmit power
Which statement is most acurate regarding surface rendering 3D 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 3D volume acquired - ANSWER
Minimizes effect of attenuation artifacts
Correct (ARDMS practice tests) | Latest Update
2024-2025
Which term describes blood flow changes in response to respiration?
A. Phasic
B. Parabolic
C. Spontaneous
D. Pulsatile - ANSWER Phasic
What is demonstrated in this image produced by a linear array to placed on a
uniform tissue-mimicking phantom?
A. Time gain compensation not set properly.
B. System has low dynamic range.
C. Transducer crystals are damaged.
D. Focus control is malfunctioning. - ANSWER Transducer crystals are damaged
What is dynamic aperture?
A. Aperture that varies with transmit frequency
B. Aperture that deceases as a function of time
C. Aperture that increases with increasing focal length
,D. Aperture that changes as a function of frame rate - ANSWER Aperture that
increases with increasing focal length
Which variable can cause an acoustic shadow artifact?
A. Small acoustic impedance mismatch
B. Refraction
C. Perpendicular incidence
D. Low attenuation - ANSWER Small acoustic impedance mismatch
What control improved the effects of attenuation?
A. Dynamic range
B. Pulse Inversion
C. Multiple focal zones
D. TGC - ANSWER TGC
What is the potential effect of increasing the PRF?
A. Depth ambiguity
B. Decreased frame rate
C. Poor spatial resolution
D. Decreased penetration - ANSWER Decreased penetration
, How is lateral resolution determined for a pulse-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 - ANSWER By observing spaces between reflectors perpendicular to the
beam
According to ALARA guidelines, which parameter should be minimized?
A. Transmit power
B. Frequency
C. TGC
D. Overall gain - ANSWER Transmit power
Which statement is most acurate regarding surface rendering 3D 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 3D volume acquired - ANSWER
Minimizes effect of attenuation artifacts
