Document Detail


A method to evaluate the elastic behavior of vascular stents.
MedLine Citation:
PMID:  8761819     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To develop a simple method for determining the elastic behavior of vascular stents. MATERIALS AND METHODS: An experimental apparatus was constructed to determine the elastic behavior of four different vascular stents. Each stent was expanded within an artificial compliant vessel and was subjected to an increasing external pressure. The cross-sectional area of each stent was recorded at incremental changes in pressure. Compliance was estimated from the slope of a linear regression analysis fit to the pressure-area data in the elastic range of deformation. RESULTS: The self-expandable stents were the most compliant, and balloon-expandable stents exhibited the least compliance. The balloon- expandable stents initially deformed in an elastic manner and then yielded irrecoverably at higher pressures. CONCLUSION: A simple method has been devised that allows the elastic behavior of stents to be assessed. Quantification of stent compliance with this method is important as a predictor of stent resistance to compression in vivo.
Authors:
J L Berry; V S Newman; C M Ferrario; W D Routh; R H Dean
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of vascular and interventional radiology : JVIR     Volume:  7     ISSN:  1051-0443     ISO Abbreviation:  J Vasc Interv Radiol     Publication Date:    1996 May-Jun
Date Detail:
Created Date:  1996-11-07     Completed Date:  1996-11-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9203369     Medline TA:  J Vasc Interv Radiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  381-5     Citation Subset:  IM    
Affiliation:
MRI Research Group, Division of Radiologic Sciences, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27157, USA.
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MeSH Terms
Descriptor/Qualifier:
Biomechanics
Compliance
Elasticity
Equipment Design
Humans
Models, Cardiovascular
Regression Analysis
Signal Processing, Computer-Assisted / instrumentation
Stents*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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