Apex-to-Base Dispersion in Regional Timing of Left Ventricular Shortening and Lengthening

We investigated whether the onset and progression of regional left ventricular (LV) shortening and lengthening parallel the apex-to-base differences in depolarization and repolarization. Limited information exists regarding apex-to-base differences in longitudinal and circumferential deformation sequence of the LV. The apex-to-base differences in electric activation and the progression of longitudinal and circumferential shortening and...