Paper Info
Title
A literature review of the numerical analysis of abdominal aortic aneurysms treated with endovascular stent grafts.
Abstract
The purpose of this paper is to present the basic principles and relevant advances in the computational modeling of abdominal aortic aneurysms and endovascular aneurysm repair, providing the community with up-to-date state of the art in terms of numerical analysis and biomechanics. Frameworks describing the mechanical behavior of the aortic wall already exist. However, intraluminal thrombus nonhomogeneous structure and porosity still need to be well characterized. Also, although the morphology and mechanical properties of calcifications have been investigated, their effects on wall stresses remain controversial. Computational fluid dynamics usually assumes a rigid artery wall, whereas fluid-structure interaction accounts for artery compliance but is still challenging since arteries and blood have similar densities. We discuss alternatives to fluid-structure interaction based on dynamic medical images that address patient-specific hemodynamics and geometries. We describe initial stresses, elastic boundary conditions, and statistical strength for rupture risk assessment. Special emphasis is accorded to workflow development, from the conversion of medical images into finite element models, to the simulation of catheter-aorta interactions and stent-graft deployment. Our purpose is also to elaborate the key ingredients leading to virtual stenting and endovascular repair planning that could improve the procedure and stent-grafts.
Year
DOI
Venue
2012
10.1155/2012/820389
COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE
Keywords
DocType
Volume
biomechanics,hemodynamics,finite element analysis,risk,rheology,computer simulation
Journal
2012
ISSN
Citations 
PageRank 
1748-670X
1
0.60
References 
Authors
1
6
Name
Order
Citations
PageRank
David Roy120.96
Claude Kauffmann2393.84
Sébastien Delorme35411.03
Sophie Lerouge410.60
Guy Cloutier510.60
Gilles Soulez615718.24