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BACKGROUND The downward movement of the aortic root during the cardiac cycle may be responsible for producing the circumferential tear observed in aortic dissections. METHODS AND RESULTS Contrast injections were investigated in 40 cardiac patients, and a finite element model of the aortic root, arch, and branches of the arch was built to assess the(More)
INTRODUCTION The cause of ascending aortic dilatation occurring in patients with congenitally bicuspid aortic valves was investigated. METHODS Flow patterns through human aortic roots with congenitally bicuspid aortic valves as well as through porcine constricted aortas were studied in a left heart simulator. Vibration was recorded as a measure of(More)
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