ARDMS SPI PRACTICE TEST A QUESTIONS
& ANSWERS.
Which parameter is most likely to affect spatial resolution?
A. dynamic range
B. beam width
C. system sensitivity
D. depth of visualization - Correct Answer-D. depth of visualization
When using a 5MHZ transducer, in which tissue is the ultrasound wavelength
shortest?
A. fat
B. blood
C. bone
D. muscle - Correct Answer-A. fat
What affects the beam width in the near field?
A. Pulse repetition frequency
B. Pulse duration
C. Frame rate
D. Transducer aperture - Correct Answer-D. Transducer aperture
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 - Correct Answer-A. change in vessel direction
Which imaging mode requires a broadband transducer?
A. continuous wave doppler
, B. Pulsed wave doppler
C. color flow imaging
D. harmonic imaging - Correct Answer-B. Pulsed wave doppler
Which factor limits image frame rate?
A. transducer operating frequency
B. Sample volume size
C. Speed of sound in tissue
D. Spatial pulse length - Correct Answer-C. Speed of sound in tissue
Which imaging modality can provide the most accurate measurement of
tumor volume?
A. color doppler
A. B B-mode
B. A-mode
C. M-mode - Correct Answer-B. B-mode
Which change would minimize the artifact observed in this image, assuming
the pulse repetition frequency is at its maximum limit?
A. adjust the sweep speed
B. adjust the baseline
C. increasing dynamic range
D. increasing the transmitted frequency - Correct Answer-B. adjust the
baseline
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 - Correct Answer-A. by observing spaces between reflectors
perpendicular to the beam
What is dynamic aperture?
& ANSWERS.
Which parameter is most likely to affect spatial resolution?
A. dynamic range
B. beam width
C. system sensitivity
D. depth of visualization - Correct Answer-D. depth of visualization
When using a 5MHZ transducer, in which tissue is the ultrasound wavelength
shortest?
A. fat
B. blood
C. bone
D. muscle - Correct Answer-A. fat
What affects the beam width in the near field?
A. Pulse repetition frequency
B. Pulse duration
C. Frame rate
D. Transducer aperture - Correct Answer-D. Transducer aperture
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 - Correct Answer-A. change in vessel direction
Which imaging mode requires a broadband transducer?
A. continuous wave doppler
, B. Pulsed wave doppler
C. color flow imaging
D. harmonic imaging - Correct Answer-B. Pulsed wave doppler
Which factor limits image frame rate?
A. transducer operating frequency
B. Sample volume size
C. Speed of sound in tissue
D. Spatial pulse length - Correct Answer-C. Speed of sound in tissue
Which imaging modality can provide the most accurate measurement of
tumor volume?
A. color doppler
A. B B-mode
B. A-mode
C. M-mode - Correct Answer-B. B-mode
Which change would minimize the artifact observed in this image, assuming
the pulse repetition frequency is at its maximum limit?
A. adjust the sweep speed
B. adjust the baseline
C. increasing dynamic range
D. increasing the transmitted frequency - Correct Answer-B. adjust the
baseline
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 - Correct Answer-A. by observing spaces between reflectors
perpendicular to the beam
What is dynamic aperture?
