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Keywords: pulsatile flow
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. June 2019, 141(6): 061001.
Paper No: BIO-17-1599
Published Online: April 22, 2019
... 12 2017 23 03 2019 aneurysm turbulence computational fluid dynamics pulsatile flow vortex ring recirculation region oscillatory shear index An aneurysm refers to the localized dilation or bulging of a blood vessel. Aneurysms can form in any blood vessel, but the cerebral...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2011, 133(10): 101002.
Published Online: October 31, 2011
... magnifications can be useful in moving towards better prediction of thrombosis in LVADs. biomedical equipment blood flow measurement cardiology flow visualisation friction kinematics pulsatile flow shear flow viscosity ventricular assist device thrombosis fluid dynamics pulsatile wall shear...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2011, 133(9): 091005.
Published Online: October 11, 2011
... 2011 11 10 2011 11 10 2011 biochemistry biological fluid dynamics bioreactors bone cellular biophysics foams macromolecules molecular biophysics orthopaedics porous materials proteins pulsatile flow tissue engineering mesenchymal stem cells PLGA pulsatile perfusion...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. June 2011, 133(6): 061008.
Published Online: July 5, 2011
... progression and in the design of prevention and treatment strategies. The artery wall is mechanically nonlinear, anisotropic and heterogeneous [( 1 2 3 4 5 )] and nearly incompressible [( 6 7 )]. biomechanics blood vessels haemodynamics physiological models pulsatile flow The results...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. June 2011, 133(6): 061007.
Published Online: June 28, 2011
... the actual valve model. Dynamic shear stresses were then obtained by applying the techniques on the valve model in a physiologic pulsatile flow loop. Results show that aortic surface shear stresses are low during early systole (<5dyn/cm 2 ) but elevated to its peak during mid to late systole at about 18...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. November 2010, 132(11): 111009.
Published Online: October 27, 2010
... = W a U ¯ For the vortex ring mode, on the other hand, the parent-artery/proximal-neck shear layer becomes unstable and rolls up to form a distinct vortex core, as seen in Fig. 5 . Shear-layer roll-up and vortex formation under pulsatile flow conditions are thus the fundamental processes...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. October 2010, 132(10): 104502.
Published Online: September 27, 2010
... models pulsatile flow aneurysm porohyperelastic permeability finite element model Abdominal aortic aneurysms (AAAs) are a progressive dilatation of the infrarenal aorta as a result of remodeling and weakening of the aortic extracellular matrix. This continuous and degenerative...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. May 2010, 132(5): 054502.
Published Online: March 25, 2010
... static pressure loading and pulsatile flow. The stent shows good dynamic behavior in keeping position imposed at implantation time and in matching the aortic root dimensions changes. Prosthesis static and dynamic regurgitation are evaluated and show values close to those obtained with other commercially...
Topics: Stents, Valves
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. March 2010, 132(3): 031009.
Published Online: February 17, 2010
.... , and Dewey , C. F. J. , 1992 , “ Vascular Endothelium Responds to Fluid Shear Stress Gradients ,” Arterioscler. Thromb. 1049-8834 , 12 , pp. 1254 – 1257 . Ku , D. N. , Giddens , D. P. , Zarins , C. K. , and Glagov , S. , 1985 , “ Pulsatile Flow and Atherosclerosis...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. November 2009, 131(11): 111005.
Published Online: October 16, 2009
... for both anastomotic configurations, although its long-term effect on the flow splitting remains unknown. A large increase in wall shear stress is found near the cannulation sites during the LVAD support. This work builds a foundation for more physiologically realistic simulations under pulsatile flow...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2009, 131(10): 101011.
Published Online: September 10, 2009
... by laser scanning confocal microscopy (Zeiss, LSM510) ( 24 ). 15 11 2008 13 07 2009 10 09 2009 biomechanics biomedical optical imaging blood vessels elasticity haemodynamics optical microscopy proteins pulsatile flow pulsatile pressure internal elastic lamina...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2009, 131(10): 101004.
Published Online: September 1, 2009
..., and smooth muscle cells can validate and improve the introduced hypotheses of the model. 28 11 2008 11 05 2009 01 09 2009 blood pressure measurement blood vessels cellular biophysics mathematical analysis molecular biophysics muscle proteins pulsatile flow shear flow...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2009, 131(9): 091004.
Published Online: August 4, 2009
...Carolyn Fisher; Jenn Stroud Rossmann Blood flow dynamics near and within cerebral aneurysms have long been implicated in aneurysm growth and rupture. In this study, the governing equations for pulsatile flow are solved in their finite volume formulation to simulate blood flow in a range of three...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2009, 131(9): 091001.
Published Online: August 4, 2009
... the characteristics of pulsatile flow in and around two “patient-specific” intracranial aneurysms at three different cardiac frequencies. Three dimensional X-ray angiographic data (3D-DSA) were used to reconstruct accurate and patient-specific aneurysm geometries. Then, computational fluid dynamics techniques were...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. June 2009, 131(6): 061006.
Published Online: April 27, 2009
... fluid dynamics simulations under pulsatile flow conditions. A flat rectangular stented vessel model was constructed and simulations were carried out using rigid walls and sinusoidal velocity input (nominal wall shear stress of 10 ± 5 dyn / cm 2 ). Mesh independence was determined from convergence...