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Related Experiment Video

Updated: May 13, 2026

Monitoring the Wall Mechanics During Stent Deployment in a Vessel
08:28

Monitoring the Wall Mechanics During Stent Deployment in a Vessel

Published on: May 8, 2012

Wave reflection at a stent.

Antonio Crespo1, Javier García, Fernando Manuel

  • 1Grupo de Mecánica de Fluidos Aplicado a la Ingeniería Industrial, ETSI Industriales, Universidad Politécnica de Madrid, Madrid, Spain. crespo@etsii.upm.es

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
|March 23, 2013
PubMed
Summary

A new analytical model simplifies calculating wave reflections from vascular stents. The model shows reflected waves are proportional to the incident wave

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Area of Science:

  • Biomedical Engineering
  • Fluid Dynamics
  • Medical Device Analysis

Background:

  • Vascular stents are crucial medical devices.
  • Accurate modeling of wave propagation in vessels with stents is complex.
  • Previous methods relied on numerical simulations.

Purpose of the Study:

  • To derive a simple analytical expression for wave reflection at a vascular stent.
  • To characterize the reflected wave and reflection coefficient.
  • To validate the analytical model against numerical results.

Main Methods:

  • Developed a simplified analytical model for wave reflection.
  • Linearized wave equations assuming small wave amplitudes.
  • Assumed stent length is small for uniform wave function values.

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Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention
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Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention

Published on: September 18, 2015

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Last Updated: May 13, 2026

Monitoring the Wall Mechanics During Stent Deployment in a Vessel
08:28

Monitoring the Wall Mechanics During Stent Deployment in a Vessel

Published on: May 8, 2012

Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention
11:01

Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention

Published on: September 18, 2015

  • Calculated reflection coefficient based on stent and vessel properties.

    • Main Results:

    • Derived a simple analytical expression for wave reflection characteristics.
    • The reflected wave is proportional to the time derivative of the incident wave.
    • The reflection coefficient is small, dependent on stent length and wavelength.
    • Analytical results align with prior numerical findings.

    Conclusions:

    • The analytical model provides an accurate and simplified method for assessing wave reflection at stents.
    • The model's assumptions (small amplitude, short stent) are valid in typical clinical scenarios.
    • This approach facilitates easier analysis of wave dynamics in stented vessels.