Evaluation of Left Ventricular Filling by Color M-Mode Doppler

pp 639-648

Abstract

Background

This study evaluated the relationship between flow propagation velocities and flow propagation delay (T), and clinical, echocardiographic and pulsed Doppler variables, in 87 consecutive patients.

Material and method

We measured left ventricular (VI) diastolic diameter(DD), interventricular septum thickness (SIV), left ventricular posterior wall thickness(PP), left atrial dimension(Au), peak early diastolic filling velocity (Ev) and time integral (Ei), peak late diastolic filling velocity (Av) and time integral (Ai), deceleration time(TD), and isovolumic relaxation time (TRIV). We calculated fractional shortening(FA), left ventricular mass index (IMVI), Ev/Av relation, Ei/Ai relation, and normalized peak flow rate (FPN). We measured early (P1) and late (P2) flow propagation velocities and T by color M-mode Doppler.

Results

P1 had no correlation with P2 or with T. P2 showed negative correlation withT. P1, P2 and T were no different in males and women. P1 showed correlation with Ev and NPFR, in univariate and multivariate analysis. P2 showed correlation with age,PP, IMVI, Au,Ai and TD, in univariate analysis. P2 was dependent on age in multivariate analysis. T showed positive correlation with age, DDVI, DSVI, SIV, PP, Au, IMVI, Av, Ai and TD; and negative correlation with FA, in univariate analysis. T was dependent on age and DSVI in multivariate analysis.

Conclusions

Left ventricular filling flow propagation by color M-mode Doppler seems to be an approach useful for evaluation of left ventricular diastolic function.