Type A aortic dissection with aortic insufficiency

Intraoperative TEE image of the aortic valve, aortic root, and proximal ascending aorta in a long-axis view, with color-flow Doppler imaging in diastole demonstrating severe aortic regurgitation with an acute aortic dissection. The presence of an intimal flap in the aortic root (arrowheads) is diagnostic for Stanford type A aortic dissection. Severe aortic regurgitation is present as a mosaic regurgitant jet in the LVOT caused by acute enlargement of the aortic root due to the dissection.