Harry A. Dwyer, PhD, Peter B

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Presentation transcript:

Migration forces of transcatheter aortic valves in patients with noncalcific aortic insufficiency Harry A. Dwyer, PhD, Peter B. Matthews, BS, Ali Azadani, PhD, Liang Ge, PhD, T. Sloane Guy, MD, Elaine E. Tseng, MD The Journal of Thoracic and Cardiovascular Surgery Volume 138, Issue 5, Pages 1227-1233 (November 2009) DOI: 10.1016/j.jtcvs.2009.02.057 Copyright © 2009 Terms and Conditions

Figure 1 TAV schematics. A, Schematic of an open TAV. B, Surface mesh of the TAV within the aortic root. TAV, Transcatheter aortic valve. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 1227-1233DOI: (10.1016/j.jtcvs.2009.02.057) Copyright © 2009 Terms and Conditions

Figure 2 Velocity vectors and dynamic pressure contours in the aortic arch. A, Maximum flow acceleration. B, Maximum flow. C, Maximum flow deceleration. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 1227-1233DOI: (10.1016/j.jtcvs.2009.02.057) Copyright © 2009 Terms and Conditions

Figure 3 Velocity profile with velocity contours in the aortic root. A, Maximum flow acceleration. B, Maximum flow. C, Maximum flow deceleration. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 1227-1233DOI: (10.1016/j.jtcvs.2009.02.057) Copyright © 2009 Terms and Conditions

Figure 4 Force on the TAV. Magnitude of total force and pressure, the largest contributing component, during systole. Force and time are presented in dimensionless units from the simulation. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 1227-1233DOI: (10.1016/j.jtcvs.2009.02.057) Copyright © 2009 Terms and Conditions

Figure 5 Contours of wall shear stress on the transcatheter aortic valve and aortic root. A, Maximum flow acceleration. B, Maximum flow. C, Maximum flow deceleration. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 1227-1233DOI: (10.1016/j.jtcvs.2009.02.057) Copyright © 2009 Terms and Conditions