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Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
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Author | Arzani, Amirhossein Suh, Ga Young Michael, V. Mcconnell Ronald, L. Dalman Shawn, C. Shadden |
Copyright Year | 2013 |
Abstract | Abdominal aortic aneurysm (AAA) is a permanent, localized enlargement of the abdominal aorta that accompanies disturbed blood flow, which is thought to perpetuate aneurysm progression. AAA rupture is a leading cause of death in the elderly and an exact intervention decision for this disease has always been associated with uncertainty. There is currently no medicinal treatment of AAA, however lower extremity exercise has been a proposed therapy. Specifically, elevated flow rates in the abdominal aorta, reduced retrograde flow, higher mean wall shear stress, and lower oscillatory shear index resulting from exercise have been hypothesized as beneficial in preventing or slowing AAA. Computational fluid dynamics (CFD) has recently been used to model flow conditions inside AAA with an aim to better understand the biomechanical underpinnings of this disease. Recent studies have used patient-specific computational models, however few studies have looked in detail to AAA transport topology or correlated their results with aneurysm progression data. This study aims to (1) compare the flow topology between rest and exercise conditions in patients with small AAA to understand specifically how blood transport changes from rest to exercise, and (2) compare flow parameters obtained by CFD to the aneurysm progression. |
Sponsorship | Bioengineering Division |
File Format | |
ISBN | 9780791855607 |
DOI | 10.1115/SBC2013-14643 |
Volume Number | Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments |
Conference Proceedings | ASME 2013 Summer Bioengineering Conference |
Language | English |
Publisher Date | 2013-06-26 |
Publisher Place | Sunriver, Oregon, USA |
Access Restriction | Subscribed |
Subject Keyword | Uncertainty Computational fluid dynamics Rupture Aneurysms Topology Flow (dynamics) Blood Diseases Blood flow Biomechanics Patient treatment Shear stress Aorta Hemodynamics Shear (mechanics) |
Content Type | Text |
Resource Type | Article |
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