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Full-Text Articles in Biomedical Engineering and Bioengineering
Comparison Of Stent Designs Using Computational Fluid Dynamics, Jonathan Murphy, Fergal Boyle
Comparison Of Stent Designs Using Computational Fluid Dynamics, Jonathan Murphy, Fergal Boyle
Conference Papers
Coronary artery disease (CAD) is one of the leading causes of death in the developed world. CAD occurs due to the build up of plaque in the coronary arteries which supply fresh blood to the constantly active heart muscle. Several methods exist to alleviate CAD such as coronary artery bypass grafting, balloon angioplasty and coronary stenting. A coronary stent is a small tubular prosthesis which can improve blood flow by acting as a scaffold to prop the diseased artery open. However, stent restenosis (re-blockage) remains a common problem with different stent designs leading to different restenosis rates. This work investigates …
Application Of Advanced Computational Modelling In The Numerical Prediction Of The Haemodynamic Impact Of Coronary Stent Implantation, Jonathan Murphy, Fergal Boyle
Application Of Advanced Computational Modelling In The Numerical Prediction Of The Haemodynamic Impact Of Coronary Stent Implantation, Jonathan Murphy, Fergal Boyle
Conference Papers
Coronary stent implantation can improve blood flow in an artery narrowed by the build up of arterial plaque. However, the haemodynamic effect of stent placement is unclear and may influence arterial restenosis (re-blockage). In this investigation the stent induced, non-Newtonian blood flow disturbances have been captured in a three dimensional computational domain. The results clearly show areas of low wall shear stress proximal and distal to the stent wires, a characteristic which is known to encourage restenosis. Furthermore, this computational method of observing the complex haemodynamics of the stent environment can be used in conjunction with medical trial data to …