Fig. 12From: Clinical applications of cardiac CT angiographya and b Status post repair of type A dissection with a mechanical aortic valve (white arrowhead) at the aortic annulus and a tube graft (white arrow) of the ascending aorta above the native aortic root. A dissection flap is present beyond the tube graft (black arrowheads) with visible communication between the true lumen and false lumenBack to article page