LV/RV Contractility (dp/dt)

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About this Calculator

Dp/dt represents the ratio of pressure change in the ventricular cavity during the isovolemic contraction period.

LV dP/dt is estimated by using time interval between 1 and 3 m/sec on MR velocity spectrum.

(Normal LV dp/dt is > 1200 mmHg/s).

RV dP/dt is estimated by using time interval between 1 and 2 m/sec on TR velocity spectrum.


Oh J, Seward JB, Tajik AJ.

The Echo Manual 3rd edition. Lippincott, Williams, Wilkins. 2007

Chung NS et al.

Measurement of left ventricular dp/dt by simultaneous Doppler echocardiography and cardiac catheterization.

Journal of the American Society of Echocardiography 1992, 5 (2): 147-52

Camm AJ, Lüscher TF, Serruys P.

The ESC Textbook of Cardiovascular Medicine. Blackwell Publishing 2006

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