Figure 5

The variation of the radial displacement parameter (α) as a function of time within a cardiac cycle at the base (slice # 9), mid-ventricle (slice # 6) and apex (slice # 4) levels. r _epi is the end-diastolic radius of the LV wall at the epicardium at the indicated level. T _cardiac is the cardiac period. The error bars represent the intragroup (n=5) standard deviations.