Doppler echocardiographic transmitral peak early velocity does not directly reflect hemodynamic changes in humans: importance of normalization to mitral stroke volume.

Abstract

Doppler echocardiographic transmitral peak early velocity normalized to the time-velocity integral during diastole is equivalent to volumetric peak filling rate normalized to stroke volume. To compare the pathophysiologic validity of normalized and nonnormalized peak early flow velocity, pulsed Doppler echocardiography with simultaneous high fidelity left… (More)

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