Fluid-Structure Interaction Modeling of Abdominal Aortic Aneurysms: The Impact of Patient-Specific Inflow Conditions and Fluid/Solid Coupling
نویسندگان
چکیده
منابع مشابه
Fluid structure interaction of patient specific abdominal aortic aneurysms: a comparison with solid stress models
BACKGROUND Abdominal aortic aneurysm (AAA) is a dilatation of the aortic wall, which can rupture, if left untreated. Previous work has shown that, maximum diameter is not a reliable determinant of AAA rupture. However, it is currently the most widely accepted indicator. Wall stress may be a better indicator and promising patient specific results from structural models using static pressure, hav...
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BACKGROUND Abdominal aortic aneurysms (AAA) are local dilatations of the infrarenal aorta. If left untreated they may rupture and lead to death. One form of treatment is the minimally invasive insertion of a stent-graft into the aneurysm. Despite this effective treatment aneurysms may occasionally continue to expand and this may eventually result in post-operative rupture of the aneurysm. Fluid...
متن کاملFluid-structure interaction in abdominal aortic aneurysms: effects of asymmetry and wall thickness
BACKGROUND Abdominal aortic aneurysm (AAA) is a prevalent disease which is of significant concern because of the morbidity associated with the continuing expansion of the abdominal aorta and its ultimate rupture. The transient interaction between blood flow and the wall contributes to wall stress which, if it exceeds the failure strength of the dilated arterial wall, will lead to aneurysm ruptu...
متن کاملAssessment of the rupture risk of abdominal aortic aneurysms by patient-specific hemodynamic modeling - initial results
Introduction At present, the diameter of an abdominal aortic aneurysm (AAA) is considered to be the primary indicator of rupture risk. Surgical treatment is usually performed if the diameter exceeds 5 cm. Rupture does however occur for diameters less than 5 cm. We therefore investigate if better rupture risk indicators can be obtained by patientspecific hemodynamic modeling. This paper discusse...
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ژورنال
عنوان ژورنال: Journal of Biomechanical Engineering
سال: 2013
ISSN: 0148-0731,1528-8951
DOI: 10.1115/1.4024275