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.
J.M. Felner M.D., R.P. Martin M.D.,
The Echocardiogram, The Hurst's The Heart, 8th ed., p 406. (modified)