Abstract：
:This study explores the analysis of a new stent geometry from two typical stents used to treat the coronary artery disease. Two different finite element methods are applied with different boundary conditions to investigate the stenosis region. Computational fluid dynamics (CFD) models including fluid-structure interaction are used to assess the haemodynamic impact of two types of coronary stents implantation: (1) type 1-based on a strut-link stent geometry and (2) type 2-a continuous helical stent. Using data from a recent clinical stenosis, flow disturbances and consequent shear stress alterations introduced by the stent treatment are investigated. A relationship between stenosis and the induced flow fields for the two types of stent designs is analysed as well as the correlation between haemodynamics and vessel wall biomechanical factors during the initiation and development of stenosis formation in the coronary artery. Both stents exhibit a good performance in reducing the obstruction artery. However, stent type 1 presents higher radial deformation than the type 2. This deformation can be seen as a limitation with a long-term clinical impact.
journal_name
Med Biol Eng Computjournal_title
Medical & biological engineering & computingauthors
Simão M,Ferreira JM,Mora-Rodriguez J,Fragata J,Ramos HMdoi
10.1007/s11517-016-1574-xsubject
Has Abstractpub_date
2017-06-01 00:00:00pages
1019-1037issue
6eissn
0140-0118issn
1741-0444pii
10.1007/s11517-016-1574-xjournal_volume
55pub_type
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