… is based on the creation of a normalized left ventricular pressure … The calculational steps
include (1) the differentiation of the … This results in a measure of instantaneous LV power (mmHg …

… non-invasive estimation of pressure gradients and catheterization. Despite having strong
correlations, several studies reported the non-invasive … of non-invasive instantaneous pressure …

… in PCWP estimation (4), becoming the routinely non-invasive … LV sizes comparable, the
instantaneous value of HDFs has … /dt, derivative of volume as a function of time (left ventricular …

… We have developed the first experimentally validated, noninvasive method to compute left
ventricular PV loops and associated quantitative measures. The proposed method shows …

… measured gradient in addition to BP for derivation of non-invasive LVSP results in either
overestimation—by use of maximal instantaneous gradient— or underestimation—by use of …

… in a patient-specific simulation model of the left heart, proving accurate over ranges of realistic
… of an accurate center path along which to evaluate transient flow derivatives. Solution of a …

… , noninvasive, in silico method for deriving left ventricular … flow waveforms and brachial
pressure values. This methodology … additional estimation of filling pressure and thus the derivation …

… The atria pressures and instantaneous chamber volumes are calculated … utilizing noninvasive
measurements and the LPM equations. As mentioned, in the present work the noninvasive …

… The lnLAEI linear regression for PCWP estimation obtained in the derivation group was …
vein blood moving to the left atrium and to the left ventricle during diastole (LA passive conduit …

… dP/dt max maximum time derivative of left ventricular pressure; dP/dt min minimum time
derivative of left ventricular pressure; EF, LV ejection fraction; tau, time constant of LV relaxation …