Validating a prediction modeling tool for left ventricular outflow tract (LVOT) obstruction after transcatheter mitral valve replacement (TMVR)

38 patients undergoing TMVR with compassionate use of balloon-expandable valves for severe mitral valve dysfunction (degenerative surgical mitral ring, bioprosthesis, or severe native mitral stenosis from severe mitral annular calcification)

Preprocedural prediction modeling utilizing computer-aided design (CAD) of the neo-LVOT post-TMVR based on CT scans

Post-TMVR CT scans (used as validation standard)

Prediction of TMVR-induced LVOT obstructionsurrogate