In the standard color Doppler map, which color represents the highest positive Doppler shift?

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Multiple Choice

In the standard color Doppler map, which color represents the highest positive Doppler shift?

Explanation:
Color Doppler maps encode both direction and speed of flow. Positive Doppler shifts—flow toward the transducer—are shown with warm colors, and the intensity of that color grows with velocity. So the fastest flow toward the transducer appears as the brightest warm hue, typically yellow or orange, rather than a darker red. Blue generally marks flow away, and black usually means no detectable flow. Therefore, the color indicating the highest positive Doppler shift is yellow/orange.

Color Doppler maps encode both direction and speed of flow. Positive Doppler shifts—flow toward the transducer—are shown with warm colors, and the intensity of that color grows with velocity. So the fastest flow toward the transducer appears as the brightest warm hue, typically yellow or orange, rather than a darker red. Blue generally marks flow away, and black usually means no detectable flow. Therefore, the color indicating the highest positive Doppler shift is yellow/orange.

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