In the color map, which color would indicate an aliased signal associated with flow away from the transducer?

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Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

In the color map, which color would indicate an aliased signal associated with flow away from the transducer?

Explanation:
Aliasing in color Doppler shows up when the Doppler velocity exceeds the Nyquist limit, causing the displayed color to wrap around the color map. In this map, the normal representation of flow away from the transducer is a certain end of the spectrum, but when aliasing occurs, that value wraps to the far end. For flow away, the wrapped, aliased signal is shown as yellow/orange. So yellow/orange indicates an aliased signal associated with flow away from the transducer.

Aliasing in color Doppler shows up when the Doppler velocity exceeds the Nyquist limit, causing the displayed color to wrap around the color map. In this map, the normal representation of flow away from the transducer is a certain end of the spectrum, but when aliasing occurs, that value wraps to the far end. For flow away, the wrapped, aliased signal is shown as yellow/orange. So yellow/orange indicates an aliased signal associated with flow away from the transducer.

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