Click on image to view larger version.

Figure 8 VC Sphericity Affects 2D and 3D Method Accuracy

To evaluate the impact of regurgitant orifice shape, a VC sphericity index was derived from a single 3D-VC area measure by dividing the largest VC diameter by the smallest VC diameter. Upper panels depict the relation of 2D-VC diameter to EROA (A) and 3D-VC area to EROA (B) for sphericity index 2 (circular or elliptical VC shape); lower panels depict the same relations for a sphericity index >2 (irregular VC shape). Dotted orange lines as in Figure 4. Abbreviations as in Figures 1 and 5.