Work

Saccular aneurysms on straight and curved vessels are subject to different hemodynamics: implications of intravascular stenting.

Year: 2006

Type: article

Abstract: Our aim was to examine hemodynamic implications of intravascular stenting in the canine venous pouch (sidewall or straight-vessel) and rabbit elastase (curved-vessel) aneurysm models. Flow dynamics in stented (Wallstent) and nonstented versions were studied by using computational fluid dynamics simulations and in vitro flow visualization, with a focus on stent placement effects on aneurysmal flow stagnancy and flow impingement. Results show that sidewall and curved aneurysm models have fundamentally different hemodynamics (shear-driven versus inertia-driven) and thus stent placement outcomes.

Source: PubMed Central

Authors: H Meng, Z Wang, M Kim, R D Ecker, L N Hopkins

Institution: University at Buffalo, State University of New York

Language: English

Topic: Aortic aneurysm repair treatments

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Science Foundation, National Institutes of Health, National Institute of Neurological Disorders and Stroke, National Institute of Biomedical Imaging and Bioengineering

Awards: Understanding and Characterization of Hemodynamics in Non-Stented and Stented Cerebral Aneurysms, Micro-Radiographic Imager for Neuroovascular Interventions, Hemodynamic Intervention of Intracranial Aneurysms, Radiographic guidance of new cerebral aneurysm stent