Aortic dissection and severe aortic regurgitation seen on TEE midesophageal long-axis view

Midesophageal aortic valve long-axis image in a patient with acute Stanford type A aortic dissection associated with severe aortic regurgitation. TEE two-dimensional imaging demonstrates an intimal flap within the aortic root (A). Color-flow Doppler imaging demonstrates severe aortic regurgitation with a regurgitant jet occupying the entire width of the LV outflow tract in diastole (B). (Aortic dissection is classified as Stanford type A when it involves the ascending aorta and Stanford type B when it is confined to the descending aorta.)