SPI Mock Registry Exam A23 Questions And
Answers
Blood flow volume changes in the body are mainly controlled by
what two factors?
A. cardiac function & vessel radius
B. viscosity & friction
C.cardiac function & peripheral resistance
D. Vessel radius &resistance -
correct answer ✅C.cardiac function & peripheral resistance
________ refers to the process programming the receiving
elements to use the higher frequency reflections for more
superficial structures and lower frequency reflections for deeper
structures.
A. Temporal Compounding
B. Coded Excitation
C. Dynamic Frequency Tuning
D. Spatial Compounding -
correct answer ✅C. Dynamic Frequency Tuning
Steering is beneficial in 2D and Doppler imaging because:
A. It allows variation in the incident angle of the ultrasound beam
B. it eliminates all imaging artifacts
,SPI Mock Registry Exam A23 Questions And
Answers
C. it eliminates the need for transmit focusing
D. it allows variation in the intensity of the ultrasound beam -
correct answer ✅A. It allows variation in the incident angle of the
ultrasound beam
Which of the following is correct regarding endocavity probes?
A. They most commonly incorporate a curved array elements that
are electronically steered to create an extended field of view.
B. One of the main disadvantages of the tightly curved elements of
the endocavity probe is decreased spatial resolution
C. Endocavity probes offer improved lateral resolution at greater
depths.
D. They should be cleaned and soaked in a high level disinfectant at
least once a day. -
correct answer ✅A. They most commonly incorporate a curved
array elements that are electronically steered to create an extended
field of view.
Focusing of the transmitted and received beam occurs in the:
A. image processor
B. signal processor
,SPI Mock Registry Exam A23 Questions And
Answers
C. beam former
D.image former -
correct answer ✅C. beam former
Multiplying density of the tissue by propagation speed in the tissue
will provide a value for what tissue characteristic?
A. frequency
B. Attenuation coefficient
C. Intensity
D. Acoustic impedance -
correct answer ✅C. Intensity
D. Acoustic impedance
In order to assess low velocity flow, which of the following operator
adjustments should be made?
A. decrease wall filter setting and compression
B. increase scale setting
C. decrease compression
D. decrease the rejection and wall filter setting -
correct answer ✅D. decrease the rejection and wall filter setting
, SPI Mock Registry Exam A23 Questions And
Answers
Increasing the edge enhancement setting will:
A. increase image contrast
B. amplify reflections on the edge of the image
C. produce a smoother image
D. Improve contrast resolution -
correct answer ✅A. increase image contrast
As the area of the beam increases, ____
A. the intensity of the beam decreases
B. the frequency increases
C. the intensity of the beam increases
D. the wavelength increases -
correct answer ✅A. the intensity of the beam decreases
What component of the beam former protects the sensitive
circultry of the amplifier ?
A. transmit / receive switch
B. pulse delays
C. summer
Answers
Blood flow volume changes in the body are mainly controlled by
what two factors?
A. cardiac function & vessel radius
B. viscosity & friction
C.cardiac function & peripheral resistance
D. Vessel radius &resistance -
correct answer ✅C.cardiac function & peripheral resistance
________ refers to the process programming the receiving
elements to use the higher frequency reflections for more
superficial structures and lower frequency reflections for deeper
structures.
A. Temporal Compounding
B. Coded Excitation
C. Dynamic Frequency Tuning
D. Spatial Compounding -
correct answer ✅C. Dynamic Frequency Tuning
Steering is beneficial in 2D and Doppler imaging because:
A. It allows variation in the incident angle of the ultrasound beam
B. it eliminates all imaging artifacts
,SPI Mock Registry Exam A23 Questions And
Answers
C. it eliminates the need for transmit focusing
D. it allows variation in the intensity of the ultrasound beam -
correct answer ✅A. It allows variation in the incident angle of the
ultrasound beam
Which of the following is correct regarding endocavity probes?
A. They most commonly incorporate a curved array elements that
are electronically steered to create an extended field of view.
B. One of the main disadvantages of the tightly curved elements of
the endocavity probe is decreased spatial resolution
C. Endocavity probes offer improved lateral resolution at greater
depths.
D. They should be cleaned and soaked in a high level disinfectant at
least once a day. -
correct answer ✅A. They most commonly incorporate a curved
array elements that are electronically steered to create an extended
field of view.
Focusing of the transmitted and received beam occurs in the:
A. image processor
B. signal processor
,SPI Mock Registry Exam A23 Questions And
Answers
C. beam former
D.image former -
correct answer ✅C. beam former
Multiplying density of the tissue by propagation speed in the tissue
will provide a value for what tissue characteristic?
A. frequency
B. Attenuation coefficient
C. Intensity
D. Acoustic impedance -
correct answer ✅C. Intensity
D. Acoustic impedance
In order to assess low velocity flow, which of the following operator
adjustments should be made?
A. decrease wall filter setting and compression
B. increase scale setting
C. decrease compression
D. decrease the rejection and wall filter setting -
correct answer ✅D. decrease the rejection and wall filter setting
, SPI Mock Registry Exam A23 Questions And
Answers
Increasing the edge enhancement setting will:
A. increase image contrast
B. amplify reflections on the edge of the image
C. produce a smoother image
D. Improve contrast resolution -
correct answer ✅A. increase image contrast
As the area of the beam increases, ____
A. the intensity of the beam decreases
B. the frequency increases
C. the intensity of the beam increases
D. the wavelength increases -
correct answer ✅A. the intensity of the beam decreases
What component of the beam former protects the sensitive
circultry of the amplifier ?
A. transmit / receive switch
B. pulse delays
C. summer
