Simultaneous intraprocedural TEE and fluoroscopic procedural images. (A–B) Fluoroscopic images show the Carillon device (asterisks), the sheath, and the endoscopic scissor just before and after the laceration of the anterior mitral leaflet (arrows). (C–D) 2D TEE multi-plane imaging (X-plane) guidance shows the simultaneous bi-commissural and LVOT views before and after the MitraCut procedure with scissor blades (indicated by the arrow). (E) Fluoroscopic views of the Carillon® Mitral Contour System™ device implanted in the coronary sinus (asterisks) and TMVR (arrows) with a SP 33M Tendyne system (Abbott Structural Heart, Santa Clara, CA, USA). 2D TEE, two-dimensional transoesophageal echocardiography; TMVR, transcatheter mitral valve replacement; SP, standard profile; LVOT, left ventricular outflow tract.