Left Ventricular Systolic Function

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It is possible to assess left ventricular early systolic contractility by using the acceleration of the mitral insufficiency Doppler signal to determine rate of pressure rise. The time it takes for the mitral insufficiency jet to accelerate from one to three meters per second is also the time it takes to increase the left ventricular systolic pressure by 32 mm Hg.

References:

Bargigia GS et al. A new method for estimating left ventricular dP/dt by continuous wave Doppler-echocardiography. Circulation 1989;80:1287-1292.
Chen C et al. Noninvasive estimation of the instantaneous first derivative of left ventricular pressure using continuous wave Doppler echocardiography. Circulation 1991;83:2101-2110.

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by Dr. Olga Shindler