Unlocking the Non-invasive Assessment of Conduit and Reservoir Function in the Aorta : The Obstructive Descending Aorta in HLHS.
4D flow
Aorta
Conduit function
Hypoplastic left heart syndrome
Reservoir function
Journal
Journal of cardiovascular translational research
ISSN: 1937-5395
Titre abrégé: J Cardiovasc Transl Res
Pays: United States
ID NLM: 101468585
Informations de publication
Date de publication:
10 2022
10 2022
Historique:
received:
18
11
2021
accepted:
14
02
2022
pubmed:
25
2
2022
medline:
3
11
2022
entrez:
24
2
2022
Statut:
ppublish
Résumé
Aortic surgeries in congenital conditions, such as hypoplastic left heart syndrome (HLHS), aim to restore and maintain the conduit and reservoir functions of the aorta. We proposed a method to assess these two functions based on 4D flow MRI, and we applied it to study the aorta in pre-Fontan HLHS. Ten pre-Fontan HLHS patients and six age-matched controls were studied to derive the advective pressure difference and viscous dissipation for conduit function, and pulse wave velocity and elastic modulus for reservoir function. The reconstructed neo-aorta in HLHS subjects achieved a good conduit function at a cost of an impaired reservoir function (69.7% increase of elastic modulus). The native descending HLHS aorta displayed enhanced reservoir (elastic modulus being 18.4% smaller) but impaired conduit function (three-fold increase in peak advection). A non-invasive and comprehensive assessment of aortic conduit and reservoir functions is feasible and has potentially clinical relevance in congenital vascular conditions.
Identifiants
pubmed: 35199256
doi: 10.1007/s12265-022-10221-4
pii: 10.1007/s12265-022-10221-4
pmc: PMC9622527
doi:
Banques de données
figshare
['10.6084/m9.figshare.16860259']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1075-1085Subventions
Organisme : British Heart Foundation
ID : TG/17/3/33406
Pays : United Kingdom
Organisme : Wellcome
ID : WT 203148/Z/16/Z
Organisme : Wellcome Trust
ID : 209450/Z/17/Z
Pays : United Kingdom
Informations de copyright
© 2022. The Author(s).
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