Pre-procedural cardiac CT assessment, following the deployment of a stereolithographic file of a SP 33M Tendyne system (Abbott Structural Heart, Santa Clara, CA, USA), highlights the risk of dynamic LVOT obstruction and SAM. (A) Predicted neo-left ventricular outflow tract (neo-LVOT) area after virtual device implantation at end-systole. (B) Elongated AML (asterisk). Ao, aorta; LA, left atrium; LV, left ventricle; STL, stereolithography; TMVR, transcatheter mitral valve replacement; CT, computed tomography; LVOT, left ventricle outflow tract; SP, standard profile; SAM, systolic anterior motion of the mitral valve; AML, anterior mitral valve leaflet.