Numerical analysis of a novel external support device for vein bypass grafts

T. Meirson, E. Orion, G. Bolotin, M. Brand, I. Avrahami

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a numerical analysis of a novel external support device for coronary artery bypass graft (CABG). The analysis includes the fluid and the structural dynamics of vein grafts with and without an external support device (ESD). Six different vein grafts geometries were modeled under time-dependent physiological conditions. The hemodynamics and the stresses developed at the graft wall were analyzed on patient based geometries 12 months posttransplantation. Results: veins under constriction of ESD were associated with higher wall shear stresses, lower shear gradients, uniform flow and lower structural effective stresses. In conclusion, these findings suggest that constricted graft with ESD improves hemodynamic and structural factors which are correlated to graft failure following CABG procedure.

Original languageEnglish
Title of host publication13th Mediterranean Conference on Medical and Biological Engineering and Computing 2013 - MEDICON 2013
Pages29-32
Number of pages4
DOIs
StatePublished - 2014
Event13th Mediterranean Conference on Medical and Biological Engineering and Computing 2013, MEDICON 2013 - Seville, Spain
Duration: 25 Sep 201328 Sep 2013

Publication series

NameIFMBE Proceedings
Volume41
ISSN (Print)1680-0737

Conference

Conference13th Mediterranean Conference on Medical and Biological Engineering and Computing 2013, MEDICON 2013
Country/TerritorySpain
CitySeville
Period25/09/1328/09/13

Keywords

  • CABG
  • CFD
  • ESD
  • FEM
  • Saphenous vein

Fingerprint

Dive into the research topics of 'Numerical analysis of a novel external support device for vein bypass grafts'. Together they form a unique fingerprint.

Cite this