The effect of stent graft curvature on the hemodynamic displacement force after abdominal aortic aneurysm endovascular repair.
abdominal aortic aneurysm (AAA)
centreline curvature (CLC)
displacement force (DF)
endovascular aortic aneurysm repair (EVAR)
migration
stent graft (SG)
Journal
Royal Society open science
ISSN: 2054-5703
Titre abrégé: R Soc Open Sci
Pays: England
ID NLM: 101647528
Informations de publication
Date de publication:
Jul 2023
Jul 2023
Historique:
received:
28
04
2023
accepted:
12
06
2023
medline:
7
7
2023
pubmed:
7
7
2023
entrez:
7
7
2023
Statut:
epublish
Résumé
Endovascular aortic aneurysm repair is a minimally invasive procedure with low mortality and morbidity. Clinical studies have revealed that a displacement force (DF) can cause stent graft (SG) migration in some circumstances requiring repeated intervention. This study aims to determine the relationship between the SG curvature and the calculated DF from four patient-specific computational fluid dynamics models. The SG's curvature was defined according to the centrelines of the implanted SG's branches. The centrelines were defined as either intersecting or separated lines. The centreline curvature (CLC) metrics were calculated based on the local curvature radii and the distances from the centrelines of idealized straight branches. The average CLC value and average variation were calculated to represent the entire graft's curvature. These CLC calculations were compared, and the method that gave the best correlation to the calculated DF was found. The optimal correlation is obtained from calculating the CLC average variation using separated centrelines and distance from straight lines, with an
Identifiants
pubmed: 37416831
doi: 10.1098/rsos.230563
pii: rsos230563
pmc: PMC10320339
doi:
Banques de données
figshare
['10.6084/m9.figshare.c.6700190']
Types de publication
Journal Article
Langues
eng
Pagination
230563Informations de copyright
© 2023 The Authors.
Déclaration de conflit d'intérêts
We declare we have no competing interests.
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