國家衛生研究院 NHRI:Item 3990099045/7804

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Title:	The biomechanical analysis of the coil stent and mesh stent expansion in the angioplasty
Authors:	Chen, SI;Tsai, CH;Liu, JS;Kan, HC;Yao, CM;Lee, LC;Shih, RJ;Shenl, CY
Contributors:	Division of Medical Engineering Research
Abstract:	Percutaneous Transluminal Angioplasty (PTA) with stent is employed to treat the cardiovascular diseases in clinical to dilate stenotic arteries. There have been two types of stents (helical coil shape and traditional mesh shape) wildly used in angioplasty in the past few years. This research studied the biomechanical effects on the expansion behavior of these two different stents with balloon in the artery vessel. The commercial three-dimensional finite element method (FEM) based software was employed to perform all the computations in this study. Simulation results reveal that the pressure is delivered uniformly by the balloon, which leads the stenosed vessel to dilate. The dog bone effect is more obvious in the helical coil stent than the traditional mesh stent. The regions close to both ends of the stent exhibit large deformation and high shear stress values for both stent types. In the clinical practices, large deformation may cause stress concentration which leads to the damage of the vessel.
Date:	2009-12
Relation:	IFMBE Proceedings. 2009 Dec;23:1592-1594.
Link to:	http://dx.doi.org/10.1007/978-3-540-92841-6_394
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000268245600394
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84861147307
Appears in Collections:	[Others] Conference Papers/Meeting Abstract

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