Fig. 2From: Two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantationSchematic drawing describes the anatomic arrangement of the aortic valve leaflets supported in crown-like fashion. The diameter at the level of the basal attachment of the leaflets (green ring) is the one used for sizing using CT. The top of the crown, namely the sinutubular junction is the level used to measure the annulus in the study (blue ring)Back to article page