Fig. 3From: Two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantationSchematic drawing describes the circumcircle of a triangle method. Three points are defined (white circles). Three lines are drawn between these points (a,b,c) and the resulting triangle issued to identify the circle (yellow circle) that intersects the three vertices of the triangleBack to article page