Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound

2014 ◽  
Author(s):  
A.M. Kok ◽  
V.L. Nguyen ◽  
L. Speelman ◽  
G.W.H. Schurink ◽  
F.N. van de Vosse ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
3D Ultrasound ◽  
Aortic Aneurysms ◽  
Abdominal Aortic

Local Mechanical Properties of Abdominal Aortic Aneurysms

2008 ◽  
Author(s):  
Evelyne van Dam ◽  
Marcel Rutten ◽  
Frans van de Vosse
Keyword(s):  
Mechanical Properties ◽  
Stress Analysis ◽  
Vessel Wall ◽  
Computational Models ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Patient Specific ◽  
Rupture Risk ◽  
Abdominal Aortic

Rupture risk of abdominal aortic aneurysms (AAA) based on wall stress analysis may be superior to the currently used diameter-based rupture risk prediction [4; 5; 6; 7]. In patient specific computational models for wall stress analysis, the geometry of the aneurysm is obtained from CT or MR images. The wall thickness and mechanical properties are mostly assumed to be homogeneous. The pathological AAA vessel wall may contain collageneous areas, but also calcifications, cholesterol crystals and large amounts of fat cells. No research has yet focused yet on the differences in mechanical properties of the components present within the degrading AAA vessel wall.

Influence of limited field-of-view on wall stress analysis in abdominal aortic aneurysms

2016 ◽  
Vol 49 (12) ◽  
pp. 2405-2412 ◽  
Author(s):  
Emiel M.J. van Disseldorp ◽  
Koen H. Hobelman ◽  
Niels J. Petterson ◽  
Frans N. van de Vosse ◽  
Marc R.H.M. van Sambeek ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Field Of View ◽  
Abdominal Aortic

scholarly journals Ultrasound Based Wall Stress Analysis of Abdominal Aortic Aneurysms using Multiperspective Imaging

2020 ◽  
Vol 59 (1) ◽  
pp. 81-91 ◽  
Author(s):  
Emiel M.J. van Disseldorp ◽  
Julia J. van Dronkelaar ◽  
Josien P.W. Pluim ◽  
Frans N. van de Vosse ◽  
Marc R.H.M. van Sambeek ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Multiperspective Imaging

scholarly journals Feasibility of wall stress analysis of abdominal aortic aneurysms using three-dimensional ultrasound

2015 ◽  
Vol 61 (5) ◽  
pp. 1175-1184 ◽  
Author(s):  
Annette M. Kok ◽  
V. Lai Nguyen ◽  
Lambert Speelman ◽  
Peter J. Brands ◽  
Geert-Willem H. Schurink ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Three Dimensional ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic

scholarly journals Wall Stress Analysis in Small Asymptomatic, Symptomatic and Ruptured Abdominal Aortic Aneurysms

2007 ◽  
Vol 33 (4) ◽  
pp. 401-407 ◽  
Author(s):  
M. Truijers ◽  
J.A. Pol ◽  
L.J. SchultzeKool ◽  
S.M. van Sterkenburg ◽  
M.F. Fillinger ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Ruptured Abdominal Aortic Aneurysms

scholarly journals Patient Specific Wall Stress Analysis and Mechanical Characterization of Abdominal Aortic Aneurysms Using 4D Ultrasound

2016 ◽  
Vol 52 (5) ◽  
pp. 635-642 ◽  
Author(s):  
E.M.J. van Disseldorp ◽  
N.J. Petterson ◽  
M.C.M. Rutten ◽  
F.N. van de Vosse ◽  
M.R.H.M. van Sambeek ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Mechanical Characterization ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Patient Specific ◽  
4D Ultrasound ◽  
Abdominal Aortic

scholarly journals Mechanical and geometrical determinants of wall stress in abdominal aortic aneurysms: A computational study

PLoS ONE ◽  
2018 ◽  
Vol 13 (2) ◽  
pp. e0192032 ◽  
Author(s):  
Dara Azar ◽  
Donya Ohadi ◽  
Alexander Rachev ◽  
John F. Eberth ◽  
Mark J. Uline ◽  
...  
Keyword(s):  
Computational Study ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic

Pulsatile Flow in Fusiform Models of Abdominal Aortic Aneurysms: Flow Fields, Velocity Patterns and Flow-Induced Wall Stresses

2004 ◽  
Vol 126 (4) ◽  
pp. 438-446 ◽  
Author(s):  
Robert A. Peattie ◽  
Tiffany J. Riehle ◽  
Edward I. Bluth
Keyword(s):  
Shear Stress ◽  
Pulsatile Flow ◽  
Maximum Shear Stress ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Flow Fields ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Risk Of Rupture

As one important step in the investigation of the mechanical factors that lead to rupture of abdominal aortic aneurysms, flow fields and flow-induced wall stress distributions have been investigated in model aneurysms under pulsatile flow conditions simulating the in vivo aorta at rest. Vortex pattern emergence and evolution were evaluated, and conditions for flow stability were delineated. Systolic flow was found to be forward-directed throughout the bulge in all the models, regardless of size. Vortices appeared in the bulge initially during deceleration from systole, then expanded during the retrograde flow phase. The complexity of the vortex field depended strongly on bulge diameter. In every model, the maximum shear stress occurred at peak systole at the distal bulge end, with the greatest shear stress developing in a model corresponding to a 4.3 cm AAA in vivo. Although the smallest models exhibited stable flow throughout the cycle, flow in the larger models became increasingly unstable as bulge size increased, with strong amplification of instability in the distal half of the bulge. These data suggest that larger aneurysms in vivo may be subject to more frequent and intense turbulence than smaller aneurysms. Concomitantly, increased turbulence may contribute significantly to wall stress magnitude and thereby to risk of rupture.

scholarly journals Peak wall stress measurement in elective and acute abdominal aortic aneurysms

2008 ◽  
Vol 47 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Michael S. Heng ◽  
Michael J. Fagan ◽  
Jason W. Collier ◽  
Grishma Desai ◽  
Peter T. McCollum ◽  
...  
Keyword(s):  
Stress Measurement ◽  
Wall Stress ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Peak Wall Stress
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