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Figure 7 Example of the apex-to-base circumferential deformation sequence of the subepicardial region of the left ventricular (LV) free wall. Onset of lengthening (arrows) occurs earlier in the basal segment and is delayed in the apical segments beyond the phase of isovolumic relaxation into the early diastolic period. Phases 1 to 5 are described in Figure 6.
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