DAVIES SPI REVIEW FINAL PAPER 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ What is spectral Doppler?
Answer: A type of Doppler ultrasound that provides a graphical
representation of blood flow velocities over time, allowing for
detailed analysis of hemodynamics.
◉ What is power Doppler?
Answer: An ultrasound technique that measures the amplitude of
the Doppler signal rather than frequency shifts, providing enhanced
sensitivity to low-velocity flow.
◉ What is the role of harmonics in ultrasound imaging?
Answer: Harmonics enhance image quality by reducing artifacts and
improving resolution, achieved by utilizing the nonlinear
propagation of ultrasound waves.
◉ What is the significance of gain settings in ultrasound?
Answer: Gain settings control the amplification of the ultrasound
signal, affecting image brightness and contrast; improper settings
can lead to poor image quality.
COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ What is spectral Doppler?
Answer: A type of Doppler ultrasound that provides a graphical
representation of blood flow velocities over time, allowing for
detailed analysis of hemodynamics.
◉ What is power Doppler?
Answer: An ultrasound technique that measures the amplitude of
the Doppler signal rather than frequency shifts, providing enhanced
sensitivity to low-velocity flow.
◉ What is the role of harmonics in ultrasound imaging?
Answer: Harmonics enhance image quality by reducing artifacts and
improving resolution, achieved by utilizing the nonlinear
propagation of ultrasound waves.
◉ What is the significance of gain settings in ultrasound?
Answer: Gain settings control the amplification of the ultrasound
signal, affecting image brightness and contrast; improper settings
can lead to poor image quality.
