Spatial Configuration of Abdominal Aortic Aneurysm Analysis as a Useful Tool for the Estimation of Stent-Graft Migration

Figures

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  Figure 1. Sharp and flat reference of blood velocity profiles.

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  Figure 2. Diagram of shape factor calculation. (a)—reference 3D geometries of abdominal aortic aneurysm (AAA) with long and short stent-graft; (b)—reference 3D geometries of long and short stent-graft and AAA; (c)—a schema of long and short stent-graft and AAA; (d)—a schema of side surface of long and short stent-graft and AAA; (e)—a schema or reference cylinders of long and short stent-graft and AAA.

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  Figure 3. Bar chart representation of relation between a real geometry and a reference cylinder for abdominal aortic aneurysm (AAA), long stent-graft (SL), and short stent-graft (SS).

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  Figure 4. Scatterplot graphic representation of Pearson’s correlation factors rho [-] for the analyzed real geometry of (a) AAA in function of reference cylinder (rho = 0.9947), (b) SL in function of reference cylinder (rho = 0.8252), (c) SS in function of reference cylinder (rho = 0.9801). For all analyzes p < 0.001.

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  Figure 5. Bar chart representation of relation between aneurysm and stent-graft for abdominal aortic aneurysm (AAA), long stent-graft (SL), and short stent-graft (SS).

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  Figure 6. Scatterplot graphic representation of Pearson’s correlation factors rho [-] for the analyzed (a) SL in function of AAA (rho = 0.7402), (b) SS in function of AAA (rho = 0.8401). For all analyzes p < 0.002.

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  Figure 7. Bar chart representation of WSS value between aneurysm and stent-graft for abdominal aortic aneurysm (AAA) and long stent-graft (SL) for: (a) Sharp velocity profile, (b) flat velocity profile, (c) real velocity profile.

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  Figure 8. Scatterplot graphic representation of Pearson’s correlation factors rho [-] for the analyzed WSS_SL in function of WSS_AAA for: (a) Sharp profile (rho = 0.1889, p = 0.467), (b) flat profile (rho = 0.5052, p = 0.038), (c) real profile (rho = 0.5050, p = 0.038).

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  Figure 9. Bar chart representation of WSS value between aneurysm and stent-graft for abdominal aortic aneurysm (AAA) and short stent-graft (SS) for: (a) Sharp velocity profile, (b) flat velocity profile, (c) real velocity profile.

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  Figure 10. Scatterplot graphic representation of Pearson’s correlation factors rho [-] for the analyzed WSS_SS in function of WSS_AAA for: (a) Sharp profile (rho = −0.1171, p = 0.6544), (b) flat profile (rho = 0.098, p = 0.706), (c) real profile (rho = 0.0262, p = 0.920).

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  Figure 11. Bar chart representation of WSS value between aneurysm and stent-graft for abdominal aortic aneurysm (AAA), long stent-graft (SL), and short stent-graft (SS) for sharp velocity profile, flat velocity profile, real velocity profile.

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  Figure 12. Scatterplot graphic representation of Pearson’s correlation factors rho [-] for the analyzed geometry of SL/AAA in function of WSS values for SL/AAA (a) for sharp profile (rho = −0.7747, p < 0.001), (b) for flat profile (rho = −0.6298, p = 0.011), (c) for real profile (rho = −0.7657, p < 0.001).