Figure 47

Two-dimensional echocardiogram from a patient with aortic stenosis due to a bicuspid aortic valve (congenital).
a. Parasternal long-axis view shows systolic doming (bowing) of the anterior and posterior cusps of the aortic valve (arrowheads). b. Parasternal short-axis view at the level of the aorta shows only two cusps (arrowheads). Ao, aorta; LVOT, left ventricular outflow tract; RVOT, right ventricular outflow tract; RA, right atrium; LA, left atrium; RV, right ventricle.