The Verification of Co‐Axiality of the Three Self‐Expanding Transcatheter Aortic Valve Systems According to the Difference in Shaft Spine

PRO+ with double spines showed vertical axis, Navitor with non-spine showed horizontal axis, whereas FX demonstrated co-axiality at the point of no recapture. This knowledge may help refine the manipulation of procedural implantation based on the shaft rigidity in each device to gain co-axiality.