DAVIES SPI EXAM REVIEW SOLVED QUESTIONS COMPLETE ANSWERS GRADED A PLUS
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
