Flow Field Dynamics of a Wide-Neck Intercranial Aneurysm With and Without the Presence of a Double-Wall Vascular Stent

Author

• Oscar Rivas, The University of Texas Rio Grande Valley

Date of Award

7-1-2026

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Advisor

Weiguang Yang

Second Advisor

Issac Choutapalli

Third Advisor

Xiaoqian Fang

Abstract

Intercranial Aneurysms (IAs) are the bulging or widening of a vascular segment in the brain. IAs have an approximate prevalence of 3.2% globally , the rupture of an IA requires emergency medical care that can result in permanent neurological disorders and mortality, making prevention key to avoid fatal outcomes. Wide-Neck Intercranial Aneurysms (WINAs) are a sub-class of IAs that are difficult to treat due to the presence of more complex morphologies. Typically resulting in high blood flow streams which some modern treatments can’t keep up with hence requiring the deployment of one or more flow-diversion devices.

Although there are studies that have investigated the flow field dynamics of single-layer flow diverters (SFDs). Double-wall Flow Diverters (DFDs) have less investigations regarding their principles and difference in treatment alongside SFD devices. This thesis provides further contribution to the understanding of the effects of DFDs and their effect on flow field dynamics of wide-neck morphologies via Particle Image Velocimetry (PIV) experiments and Computational Fluid Dynamic (CFD) studies.

Comments

Copyright 2026 Oscar Rivas. All Rights Reserved. https://proquest.com/docview/3409025197

Recommended Citation

Rivas , O. (2026). Flow Field Dynamics of a Wide-Neck Intercranial Aneurysm With and Without the Presence of a Double-Wall Vascular Stent [Master's thesis, The University of Texas Rio Grande Valley]. ScholarWorks @ UTRGV. https://scholarworks.utrgv.edu/etd/1977