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Initial findings and potential applicability of computational simulation of the aorta in acute type B dissection  Zhuo Cheng, PhD, Celia Riga, MRCS, Joyce.

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Presentation on theme: "Initial findings and potential applicability of computational simulation of the aorta in acute type B dissection  Zhuo Cheng, PhD, Celia Riga, MRCS, Joyce."— Presentation transcript:

1 Initial findings and potential applicability of computational simulation of the aorta in acute type B dissection  Zhuo Cheng, PhD, Celia Riga, MRCS, Joyce Chan, MRCS, Mohammad Hamady, FRCR, Nigel B. Wood, PhD, Nicholas J.W. Cheshire, MD, FRCS, Yun Xu, PhD, Richard G.J. Gibbs, MD, FRCS  Journal of Vascular Surgery  Volume 57, Issue 2, Pages 35S-43S (February 2013) DOI: /j.jvs Copyright © 2013 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Aortic model demonstrating parameters measured.
Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Geometric description of the aortic dissection models. Each subject has two pictures: right-anterior view of the reconstructed model (left) and transparent view (right). The primary tear can be seen clearly from the transparent views. AD, Aortic dissection. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

4 Fig 3 Particle paths of blood flow in each aortic dissection model demonstrating accelerated flow through the tear and false lumen complex flow (right-anterior view [left] and left-posterior view [right]). Paths are color coded based on velocity; red is the highest velocity, blue is the lowest. AD, Aortic dissection. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

5 Fig 4 Relationship between DTR and flow rate in false lumen. DTR, Ratio of tear maximum width to aortic diameter. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

6 Fig 5 Relationship between tear height and flow rate in false lumen.
Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

7 Fig 6 Relationship between tear position and flow rate in the false lumen. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

8 Fig 7 Time-averaged wall shear stress (TAWSS) contours in the aortic dissection models (right-anterior view [left] and left-posterior view [right]). Highest TAWSS was found at the entry tear site where blood flow is accelerated and velocity is high. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

9 Fig 8 Changes in entry tear size and time-averaged wall shear stress (TAWSS) over time. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

10 Fig 9 Geometrical description of the single-case model illustrating progressive false lumen thrombosis over time. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

11 Fig 10 Relative residence time (RRT) and turbulence intensity contours with subsequent areas of false lumen thrombus formation. High RRT predicts subsequent areas of new false lumen thrombosis on follow-up scans. Journal of Vascular Surgery  , 35S-43SDOI: ( /j.jvs ) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

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