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L. Speelman, E. M. H. Bosboom, G. W. H. Schurink, F. A. M. V. I

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Presentation on theme: "L. Speelman, E. M. H. Bosboom, G. W. H. Schurink, F. A. M. V. I"— Presentation transcript:

1 Patient-Specific AAA Wall Stress Analysis: 99-Percentile Versus Peak Stress 
L. Speelman, E.M.H. Bosboom, G.W.H. Schurink, F.A.M.V.I. Hellenthal, J. Buth, M. Breeuwer, M.J. Jacobs, F.N. van de Vosse  European Journal of Vascular and Endovascular Surgery  Volume 36, Issue 6, Pages (December 2008) DOI: /j.ejvs Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

2 Figure 1 The 3D active object of the centerline (left), the lumen (middle) and the AAA wall (right). European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

3 Figure 2 Left: Failure of the automatic segmentation into the vena cava (thin solid line) and manual corrected contour (solid dotted line). Right: Corrected contour. European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

4 Figure 3 Posterior view of the stress distributions for two patients for operators 1, 2 and 3. European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

5 Figure 4 The mean and standard deviation of the peak stress and 99-percentile stress for the 5 analyses of all patients as determined by operator 1 (left) and 2 (right). European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

6 Figure 5 Bland–Altman plots for operators 1, 2 and 3 (- - indicates one standard deviation). European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

7 Figure 6 Linear regression between the 99-percentile stress and the maximum diameter (left, - - indicates one standard deviation) and the residuals of the regression model, normalized to the standard deviation of the residuals (right). European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

8 Figure 7 A–E ‘high stress AAAs’ with stresses more than one standard deviation above the regression model. F–I ‘low stress AAAs’ with stresses below the regression model. European Journal of Vascular and Endovascular Surgery  , DOI: ( /j.ejvs ) Copyright © 2008 European Society for Vascular Surgery Terms and Conditions

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