Effect of Nyquist limit and color gain on color Doppler signals
by Nanda Navin C

Comprehensive Textbook of Echocardiography

by Navin C Nanda
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In this video clip, the Nyquist limit has been reduced the standardized range and is kept at 23 cm/s without change in color gain. This increased the TR jet area and hence a low Nyquist limit can lead to overestimation of regurgitation severity.

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