Vessel wall stress and remodelling at a graft-artery junction

Author

Ballyk, Peter D. ; Walsh, Colin ; Ojha, Matadial

Author_Institution

Fac. of Med., Toronto Univ., Ont., Canada

Volume

1

fYear

1995

fDate

20-25 Sep 1995

Firstpage

105

Abstract

The mechanics of a 45° end-to-side graft-artery junction were modelled numerically and the resulting stress distribution was compared to that found in (i) a normal artery-artery junction and (ii) a graft-artery junction with tissue thickening around the suture-line. The tissue thickening reduced the maximum stress concentration in the graft-artery junction from 1.5 times the maximum artery-artery junction value to 1.2 times that value. These results support the theory that suture-line thickening is part of a remodelling process which attempts to reduce the mechanical stress at the junction to a more physiological level

Keywords

biomechanics; cardiology; finite element analysis; muscle; physiological models; prosthetics; stress analysis; surgery; 45° end-to-side graft-artery junction; atherosclerosis; cardiovascular disease; graft-artery junction; maximum stress concentration; mechanical stress; mechanics; normal artery-artery junction; physiological level; remodelling; stress distribution; surgical bypass graft implantation; suture-line; tissue thickening; vessel wall stress; Arteries; Biomedical engineering; Capacitive sensors; Cardiovascular diseases; Cells (biology); Extracellular; Muscles; Nonlinear equations; Production; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.575022

Filename

575022