 Data will be obtained from parasternal and apical views using a GE Vivid 7 scanner. LV volumes will be measured using the Teichhloz formula. Diastolic function will be assessed as previously described by our group17. Global radial function will be assessed by both endocardial and mid-wall fractional shortening. All measurements will be performed using Echo-Pac GE workstation and averaged over 3 individual measures. 