Figure 33-2 Short-axis two-dimensional cross section of a normal aortic valve (AV). This midesophageal short-axis view of the AV reveals the morphology of the three cusps of this normal valve. LA, left atrium; RA, right atrium; RVOT, right ventricular outflow tract; TV, tricuspid valve. (From Cahalan MK: Intraoperative Transesophageal Echocardiography. An Interactive Text and Atlas. New York, Churchill Livingstone, 1997.)