calculated left ventricular blood pressure time constant of left ventricular pressure decay 2013-07-31T15:29:00Z A calculated hemodynamic value related to the ability of the heart left ventricle to relax. Tau is calculated as an exponential function of the change in intraventricular pressure during the diastolic isovolumic left ventricular pressure decrease. CMO:0001747 EFO:0004295 JSmith Left ventricular relaxation time constant P/(−dP/dt) T Tau VT:0010750 clinical_measurement_ontology left ventricular function time constant of left ventricular relaxation