LV/RV Contractility (dp/dt)
Questions
About
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.
References
Oh J, Seward JB, Tajik AJ.
The Echo Manual 3rd edition. Lippincott, Williams, Wilkins. 2007
Barigiggia GS et al.
Circulation 1989, 80 (5): 1287-92
Chung NS et al.
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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