Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
A Systematic Literatures Review on the use of fluid-structure interaction simulation for systems of blood flow through arteries with stents
Submission Author:
Endel Ferraz , RS
Co-Authors:
Endel Ferraz, Kristian Nascimento Telöken, Isadora Ghisleni, Julia Lenz Goetz, Flavia Zinani
Presenter: Kristian Nascimento Telöken
doi://10.26678/ABCM.COBEM2023.COB2023-2127
Abstract
This article presents a systematic review of the literature on applying Fluid-Structure Interaction (FSI) models to simulate the flow and blood in vessels with stents. Computational Fluid Dynamics (CFD) is growing as an analysis and support tool in cardiovascular medicine, helping to assess the severity of stenoses and aneurysms, allowing the planning of interventions such as bypass and stent placement, and assisting in the design of the stent itself to improve its performance. However, CFD simulations considering rigid structures do not capture some effects due to the elastic properties of the blood vessels and their interaction with the stent material, which reduces the accuracy of these simulations. Thus, FSI is the alternative to modeling the fluid (blood) flow and the deformation of materials, such as the blood vessel wall and the stent, as well as the interaction between them. The FSI allows the evaluation of blood flow, the deformation of the surrounding tissue, stents, and other types of grafts, considering factors such as blood pressure, deformation, and the stresses applied during the process. This paper brings a systematic literature review of the main methods employed, main results and conclusions regarding the use of the tool in this specific application. To this end, the methodology applied follows a protocol. A review question is posed: "what is the potential application of hemodynamic models using Fluid-Structure Interaction (FSI) for the study of stents?". Keywords are selected, and a search is performed for articles in a database, in this case, Scopus. Inclusion and exclusion criteria are determined. In this case, after choosing the articles that met the inclusion criteria, 29 articles were selected, whose results were synthesized, and a content analysis was performed. The selected articles were classified, cataloged, application, type of blood vessel, and type of stent. The usefulness of FSI to study aneurysms, aneurysm growth and rupture, blood pump flow and hemodynamics, and atherosclerosis were verified. Computational resource requirements, implementation strategies, and future directions of FSI for cardiovascular applications were discussed. It was concluded that using FSI techniques can reduce the costs and time associated with testing physical prototypes, reducing the need for animal experiments, and allowing more efficient and safer prototypes to be developed and tested rapidly. Finally, the review emphasizes the need for further studies on the use of FSI in the simulation of stent systems to improve the models currently used and propose more accurate and universal validation strategies.
Keywords
Stent, fluid-structure interaction, hemodynamics, Systematic literature review, Computational Fluid Dynamics
