Stress-Strain Analysis in Anastomoses of Arteries with Vascular Grafts

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Stress-Strain Analysis in Anastomoses of Arteries with Vascular Grafts

Popis výsledku v původním jazyce

Failures and other clinical complications concerning surgical connections (anastomoses) between a natural artery and an autograft or artificial vascular graft represent a challenging biomechanical problem. Stress-strain analyses aim at reduction of extreme stresses or strains in the anastomosis and at reduction of stiffness mismatch among the artery, graft and anastomosis. In this way, they can contribute to lowering the risk of postsurgical complications (leakage, ruptures, growth of secondary aneurysmmas etc.). Stress-strain states in various types of end-to-end anastomoses of either two identical parts of aorta (coarctation of aorta) or in connection between aorta and an artificial (knitted) vascular graft were modelled using finite element programsystem ANSYS. Quasistatic analyses using axisymmetric model assumed a nonlinear elastic, homogeneous, isotropic, nearly incompressible material of aortic wall or of each of the two major layers. The constitutive model of knitted vascular

Název v anglickém jazyce

Stress-Strain Analysis in Anastomoses of Arteries with Vascular Grafts

Popis výsledku anglicky

Failures and other clinical complications concerning surgical connections (anastomoses) between a natural artery and an autograft or artificial vascular graft represent a challenging biomechanical problem. Stress-strain analyses aim at reduction of extreme stresses or strains in the anastomosis and at reduction of stiffness mismatch among the artery, graft and anastomosis. In this way, they can contribute to lowering the risk of postsurgical complications (leakage, ruptures, growth of secondary aneurysmmas etc.). Stress-strain states in various types of end-to-end anastomoses of either two identical parts of aorta (coarctation of aorta) or in connection between aorta and an artificial (knitted) vascular graft were modelled using finite element programsystem ANSYS. Quasistatic analyses using axisymmetric model assumed a nonlinear elastic, homogeneous, isotropic, nearly incompressible material of aortic wall or of each of the two major layers. The constitutive model of knitted vascular

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

World Congress on Medical Physics and Biomedical Engineering

ISBN

1 877040 14 2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

International Federation of Medical and Biological Engineering

Místo vydání

Sydney, Australia

Místo konání akce

Sydney

Datum konání akce

24. 8. 2003

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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