... cardiovascular risk biomechanics abdominal aortic aneurysm American Heart Association 10.13039/100000968 13PRE16850008 National Center for Advancing Translational Sciences 10.13039/100006108 3 UL1 TR002378 National Institute of Allergy and Infectious Diseases 10.13039/100000060...

... ) illustrates elevated wall shear stress in the sac of the aneurysm for all nonstented fusiform models were decreased TAWSS (0.28, 0.33 Pa) significantly by the deploying PFS. abdominal aortic aneurysm hemodynamics computational fluid dynamics COMSOL multiphysics finite element analysis...

...Tejas Canchi; Sourav S. Patnaik; Hong N. Nguyen; E. Y. K. Ng; Sriram Narayanan; Satish C. Muluk; Victor De Oliveira; Ender A. Finol In this work, we provide a quantitative assessment of the biomechanical and geometric features that characterize abdominal aortic aneurysm (AAA) models generated from...

...S. Attarian; S. Xiao; T. C. Chung; E. S. da Silva; M. L. Raghavan The objective of the study is to use crack propagation simulation to study the rupture site characteristics in ruptured abdominal aortic aneurysms (AAA). In a study population of four ruptured AAA harvested whole from cadavers...

...Polina A. Segalova; K. T. Venkateswara Rao; Christopher K. Zarins; Charles A. Taylor As endovascular treatment of abdominal aortic aneurysms (AAAs) gains popularity, it is becoming possible to treat certain challenging aneurysmal anatomies with endografts relying on suprarenal fixation...

...Clark A. Meyer; Eric Bertrand; Olivier Boiron; Valérie Deplano A new experimental setup has been implemented to precisely measure the deformations of an entire model abdominal aortic aneurysm (AAA). This setup addresses a gap between the computational and experimental models of AAA that have aimed...

...Ethan O. Kung; Andrea S. Les; Francisco Medina; Ryan B. Wicker; Michael V. McConnell; Charles A. Taylor The purpose of this study is to validate numerical simulations of flow and pressure in an abdominal aortic aneurysm (AAA) using phase-contrast magnetic resonance imaging (PCMRI) and an in vitro...

...T. J. Corbett; B. J. Doyle; A. Callanan; M. T. Walsh; T. M. McGloughlin In vitro studies of abdominal aortic aneurysm (AAA) have been widely reported. Frequently mock artery models with intraluminal thrombus (ILT) analogs are used to mimic the in vivo AAA. While the models used may be physiological...

...Evangelos Boutsianis; Michele Guala; Ufuk Olgac; Simon Wildermuth; Klaus Hoyer; Yiannis Ventikos; Dimos Poulikakos There is considerable interest in computational and experimental flow investigations within abdominal aortic aneurysms (AAAs). This task stipulates advanced grid generation techniques...

...José F. Rodríguez; Cristina Ruiz; Manuel Doblaré; Gerhard A. Holzapfel Biomechanical studies suggest that one determinant of abdominal aortic aneurysm (AAA) rupture is related to the stress in the wall. In this regard, a reliable and accurate stress analysis of an in vivo AAA requires a suitable 3D...

...Lambert Speelman; Ajay Bohra; E. Marielle H. Bosboom; Geert Willem H. Schurink; Frans N. van de Vosse; Michel S. Makaroun; David A. Vorp It is generally acknowledged that rupture of an abdominal aortic aneurysm (AAA) occurs when the stress acting on the wall over the cardiac cycle exceeds...

...Z. Li; C. Kleinstreuer Insertion of a stent-graft into an aneurysm, especially abdominal aortic aneurysms (AAAs), is a very attractive surgical intervention; however, it is not without major postoperative complications, such as endoleaks. An endoleak is the transient accumulation of blood...

... dangerous wall stress levels and aneurysm rupture, a transient 3-D stented abdominal aortic aneurysm model and a coupled fluid-structure interaction solver were employed. Simulation results indicate that, even without the presence of endoleaks (blood flowing into the cavity), elevated sac pressure can occur...