Figure 1

LV Cavity Geometric Model: The LV cavity between the mitral-valve annulus to basal slice was modeled as a cylinder of length L1, the two regions between the basal and mid, and mid and apical slices were moeled as tow cut-cones of lengths L2, and L3, and the apical region between the apical slice and the LV apex was modeled as a cone of length L4. L1 and L4 were calculated directly from one of the long axis views, and the L2, and L3 were calcualted from the inter-slice gap presribed during acquisition.