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Use of computational fluid dynamics studies in predicting aneurysmal degeneration of acute type B aortic dissections  Eric K. Shang, MD, Derek P. Nathan,

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Presentation on theme: "Use of computational fluid dynamics studies in predicting aneurysmal degeneration of acute type B aortic dissections  Eric K. Shang, MD, Derek P. Nathan,"— Presentation transcript:

1 Use of computational fluid dynamics studies in predicting aneurysmal degeneration of acute type B aortic dissections  Eric K. Shang, MD, Derek P. Nathan, MD, Ronald M. Fairman, MD, Joseph E. Bavaria, MD, Robert C. Gorman, MD, Joseph H. Gorman, MD, Benjamin M. Jackson, MD  Journal of Vascular Surgery  Volume 62, Issue 2, Pages (August 2015) DOI: /j.jvs Copyright © 2015 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Three-dimensional flow lumen reconstruction of two acute type B dissections. A, The patient with this configuration had a stable aortic diameter. B, The patient with this configuration developed rapid expansion requiring stent graft placement. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Flow velocity maps of the thoracic segments of the aortic dissections in Fig 1 showing the acceleration of blood through dissection tears and its subsequent impingement on the far aortic wall. A, An aortic dissection with a stable transaortic diameter. B, An aortic geometry that demonstrated rapid expansion. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

4 Fig 3 Time-averaged wall shear stress (TAWSS) plotted on the aortic surface. Note the increased TAWSS along the true lumen in the dissection in (B) as well as the increased area over which TAWSS is increased compared with the dissection in (A). Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

5 Fig 4 Plot of peak time-averaged wall shear stress (TAWSS) of the aortic wall and false lumen flow showing that patients with both elevated false lumen flow and peak TAWSS underwent rapid aortic expansion. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

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