title: "Duplication" of aortic cusp. New M-mode echocardiographic sign of intimal tear in aortic dissection.
abstract: M-mode and two-dimensional echocardiograms were obtained in a patient with acute dissecting aneurysm of the ascending aorta. The M-mode echocardiogram disclosed apparent "duplication" of the non-coronary aortic cusp. Two-dimensional echocardiograms showed this finding to be the result of the motion of a flap of torn aortic intima. This new M-mode finding appears to be a highly specific echocardiographic sign for aortic dissection.
mesh_terms: D000328:Adult; D000784:Aortic Dissection / Q000175:diagnosis*; D001011:Aorta; D001014:Aortic Aneurysm / Q000175:diagnosis*; D004452:Echocardiography; D006801:Humans; D008297:Male