In vitro Doppler versus catheter transvalvular pressure gradients in <scp>balloon‐expandable</scp> versus <scp>self‐expanding</scp> transcatheter aortic valves

Abstract

The Doppler TPGs are, on average, 40% higher than the catheter TPGs for both BE and SE THVs. The SE THV had lower Doppler and catheter TPGs compared to the BE THV, at normal and high flow states. The absolute and percent differences between Doppler versus catheter TPGs were similar in BE versus SE THVs.