Figure 1

Mechanical Delay Times from Magnetic Resonance Imaging. Endocardial contours are traced on short-axis cine SSFP images (A) and the distance relative to the centroid is computed (B; red). Each regional RDC is compared to a patient-specific reference (B; blue) to determine the mechanical delay time. These delay times are then mapped to the standard AHA 17 segment model (C).