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Variations of pressure standard deviations as a function of axial distance at selected time points during systole with (a) SAPIEN 3 and (b) Evolut TAVs. The edge of the fully open leaflet is at (a) 3.5 cm with SAPIEN and (b) 4.2 cm with Evolut as highlighted with the dotted line. The shaded red area represent the location of the valve with respect to the measurement region.
