Color Doppler is also called what?

Color Doppler is also called what?

• A. The Nyquist limit is decreased
• B. Color Doppler
• C. Spectral Doppler
• D. Power Doppler

Answer: (B)

Color Doppler refers to the color-flow overlay that shows blood movement on the grayscale ultrasound image, encoding direction and velocity into colors. This modality is often called Color Flow Doppler or Color Flow Imaging, because the color map represents flow information rather than a separate waveform. Among the options, the term that matches the same modality is Color Doppler, since the others describe different Doppler functions: Spectral Doppler provides velocity waveforms rather than colored flow on the image, Power Doppler emphasizes flow strength without direction, and the Nyquist limit relates to sampling and aliasing rather than naming a Doppler mode. So the best choice is the color Doppler option itself.

Color Doppler refers to the color-flow overlay that shows blood movement on the grayscale ultrasound image, encoding direction and velocity into colors. This modality is often called Color Flow Doppler or Color Flow Imaging, because the color map represents flow information rather than a separate waveform. Among the options, the term that matches the same modality is Color Doppler, since the others describe different Doppler functions: Spectral Doppler provides velocity waveforms rather than colored flow on the image, Power Doppler emphasizes flow strength without direction, and the Nyquist limit relates to sampling and aliasing rather than naming a Doppler mode. So the best choice is the color Doppler option itself.