In color Doppler, the frequency shift is _______.

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Multiple Choice

In color Doppler, the frequency shift is _______.

Explanation:
In color Doppler, the Doppler frequency shift is represented by color on the image. The system maps the shift (its magnitude and direction) into a color scale, so faster flow or motion toward or away from the transducer appears in different colors and intensities. This color encoding is how velocity information is conveyed visually, rather than by amplitude, phase, or time alone. The frequency shift itself is the difference in frequency due to motion, and the display uses that difference to assign a color value.

In color Doppler, the Doppler frequency shift is represented by color on the image. The system maps the shift (its magnitude and direction) into a color scale, so faster flow or motion toward or away from the transducer appears in different colors and intensities. This color encoding is how velocity information is conveyed visually, rather than by amplitude, phase, or time alone. The frequency shift itself is the difference in frequency due to motion, and the display uses that difference to assign a color value.

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