CFD Modelling of Abdominal Aortic Aneurysm on Hemodynamic Loads Using a Realistic Geometry with CT
Joint Authors
Ng, Eddie Y. K.
Soudah, Eduardo
Pua, Uei
Narayanan, Sriram
Loong, T. H.
Bordone, Maurizio
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The objective of this study is to find a correlation between the abdominal aortic aneurysm (AAA) geometric parameters, wall stress shear (WSS), abdominal flow patterns, intraluminal thrombus (ILT), and AAA arterial wall rupture using computational fluid dynamics (CFD).
Real AAA 3D models were created by three-dimensional (3D) reconstruction of in vivo acquired computed tomography (CT) images from 5 patients.
Based on 3D AAA models, high quality volume meshes were created using an optimal tetrahedral aspect ratio for the whole domain.
In order to quantify the WSS and the recirculation inside the AAA, a 3D CFD using finite elements analysis was used.
The CFD computation was performed assuming that the arterial wall is rigid and the blood is considered a homogeneous Newtonian fluid with a density of 1050 kg/m3 and a kinematic viscosity of 4×10-3 Pa·s.
Parallelization procedures were used in order to increase the performance of the CFD calculations.
A relation between AAA geometric parameters (asymmetry index (β), saccular index (γ), deformation diameter ratio (χ), and tortuosity index (ε)) and hemodynamic loads was observed, and it could be used as a potential predictor of AAA arterial wall rupture and potential ILT formation.
American Psychological Association (APA)
Soudah, Eduardo& Ng, Eddie Y. K.& Loong, T. H.& Bordone, Maurizio& Pua, Uei& Narayanan, Sriram. 2013. CFD Modelling of Abdominal Aortic Aneurysm on Hemodynamic Loads Using a Realistic Geometry with CT. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-474242
Modern Language Association (MLA)
Soudah, Eduardo…[et al.]. CFD Modelling of Abdominal Aortic Aneurysm on Hemodynamic Loads Using a Realistic Geometry with CT. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-474242
American Medical Association (AMA)
Soudah, Eduardo& Ng, Eddie Y. K.& Loong, T. H.& Bordone, Maurizio& Pua, Uei& Narayanan, Sriram. CFD Modelling of Abdominal Aortic Aneurysm on Hemodynamic Loads Using a Realistic Geometry with CT. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-474242
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-474242