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The distribution and frequency (%) of focal myocardial fibrosis (MF) for transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (SAVR) groups as represented on a 16 segment AHA model. MF was greatest in the basal and septal regions and was significantly higher in the TAVI group. A typical example of MF (as highlighted by the white arrows) is shown on a single mid-ventricular late gadolinium enhancement image.
