Comparison of stenosis models for usage in the estimation of pressure gradient across aortic coarctation.
Aortic coarctation
Bernoulli loss
Entrance effect
Poiseuille loss
Pressure gradient
Stenosis model
Journal
Journal of biological physics
ISSN: 1573-0689
Titre abrégé: J Biol Phys
Pays: Netherlands
ID NLM: 0417731
Informations de publication
Date de publication:
06 2021
06 2021
Historique:
received:
16
01
2021
accepted:
27
04
2021
pubmed:
27
5
2021
medline:
29
10
2021
entrez:
26
5
2021
Statut:
ppublish
Résumé
Non-invasive estimation of the pressure gradient in cardiovascular stenosis has much clinical importance in assisting the diagnosis and treatment of stenotic diseases. In this research, a systematic comparison is conducted to investigate the accuracy of a group of stenosis models against the MRI- and catheter-measured patient data under the aortic coarctation condition. Eight analytical stenosis models, including six from the literature and two proposed in this study, are investigated to examine their prediction accuracy against the clinical data. The two improved models proposed in this study consider comprehensively the Poiseuille loss, the Bernoulli loss in its exact form, and the entrance effect, of the blood flow. Comparison of the results shows that one of the proposed models demonstrates a cycle-averaged mean prediction error of -0.15 ± 3.03 mmHg, a peak-to-peak prediction error of -1.8 ± 6.89 mmHg, which is the best among the models studied.
Identifiants
pubmed: 34036473
doi: 10.1007/s10867-021-09572-x
pii: 10.1007/s10867-021-09572-x
pmc: PMC8184908
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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