Figure 1.

Schematic illustration of device size selection based on supra‐annular assessment using sequential balloon sizing. A: Waist sign with less than mild contrast regurgitation; B: Waist sign with mild or more contrast regurgitation; C: No waist sign with less than mild contrast regurgitation; D: No waist sign with mild or more contrast regurgitation; Black arrow: waist sign; Red arrow: contrast regurgitation; Red dots: calcification [Color figure can be viewed at http://wileyonlinelibrary.com]