Benjamin R. Landgraf1, Kevin M. Johnson2, Erik T. Bieging1, Oliver Wieben2, Christopher J. Franois1
1Radiology, University of Wisconsin - Madison, Madison, WI, United States; 2Medical Physics, University of Wisconsin - Madison, Madison, WI, United States
Complex blood flow patterns in the ascending aorta have been associated with the pathophysiology of various cardiovascular diseases, including ascending aortic aneurysms. Helical and vortical flow in patients with aneurysms present an increased tangential force that could lead to further aortic dilation, dissection, or rupture. Characterization and quantification of these flow patterns could help predict disease progression. This study investigates several hemodynamic parameters of the ascending aorta in 11 normal volunteers and 13 patients, including peak and mean velocities, calculation of a tangential percentage of velocity, and characterization of flow patterns.