Wave reflection at a stent

Crespo Martínez, Antonio and García García, Javier and Manuel Martín, Fernando Jaime (2013). Wave reflection at a stent. "Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine", v. 227 (n. 1); pp. 72-77. ISSN 0954-4119. https://doi.org/10.1177/0954411912456785.

Description

Title: Wave reflection at a stent
Author/s:
  • Crespo Martínez, Antonio
  • García García, Javier
  • Manuel Martín, Fernando Jaime
Item Type: Article
Título de Revista/Publicación: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Date: January 2013
ISSN: 0954-4119
Volume: 227
Subjects:
Freetext Keywords: Stent, hemodynamics, fluid mechanics, wave reflections
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A simple analytical expression has been derived to calculate the characteristics of a wave that reflects at a stent implanted in a uniform vessel. The stent is characterized by its length and the wave velocity in the stented region. The reflected wave is proportional to the time derivative of the incident wave. The reflection coefficient is a small quantity of the order of the length of the stent divided by the wavelength of the unstented vessel. The results obtained coincide with those obtained numerically by Charonko et al. The main simplifications used are small amplitude of the waves so that equations can be linearized and that the length of the stent is small enough so that the values of the wave functions are nearly uniform along the stent. Both assumptions hold in typical situations.

More information

Item ID: 15402
DC Identifier: http://oa.upm.es/15402/
OAI Identifier: oai:oa.upm.es:15402
DOI: 10.1177/0954411912456785
Official URL: http://pih.sagepub.com/content/227/1/72.abstract
Deposited by: Memoria Investigacion
Deposited on: 28 Apr 2015 15:27
Last Modified: 16 Mar 2017 15:41
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