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Abstract #1433

Robust Estimation of Pulse Wave Transit Time Using Group Delay

Antonella Meloni1, Heather Zymeski2, Alessia Pepe1, Massimo Lombardi1, John C. Wood2

1CMR Unit, Fondazione G. Monasterio CNR-Regione Toscana and Institute of Clinical Physiology, Pisa, Italy; 2Division of Cardiology,, Childrens Hospital Los Angeles, Los Angeles, CA, United States

We developed a novel transit time estimation method from CMR flow curves based on the group delay concept. Our method was superior with two commonly used methods based on full-wave half maximum and correlation approaches in terms of dependence by the temporal resolution, dependence by the curves taken into account and reproducibility.