Impact of model complexity on patient specific wall stress analyses of abdominal aortic aneurysms
Publikation: Beitrag in Fachzeitschrift › Konferenzartikel › Beigetragen › Begutachtung
Beitragende
Abstract
A new approach for risk evaluation of abdominal aortic aneurysm is based on wall stress distribution and determination of peak wall stresses using the finite element method. To clarify the influence of different model assumptions on results a study with models of different complexities is performed. Patient specific AAAs are modeled using 6 different approaches which are distinguished by linear or nonlinear material law, inclusion of thrombus and calcification, application of blood pressure load and prestressing technique. Deformations and peak wall stresses change remarkably between the different complexity grades. In most cases, simplifications lead to unrealistically increased displacements and stresses.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 510-513 |
Seitenumfang | 4 |
Fachzeitschrift | IFMBE Proceedings |
Ausgabenummer | 4 |
Publikationsstatus | Veröffentlicht - 2009 |
Peer-Review-Status | Ja |
Konferenz
Titel | World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics |
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Dauer | 7 - 12 September 2009 |
Stadt | Munich |
Land | Deutschland |
Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- Abdominal aortic aneurysm, Biomechanics, Patient specific modeling, Wall stress