Dual-V
4D flow MRI
Dual Venc
non-Cartesian trajectory
phase contrast MRI
spiral acquisition
stenotic flow
Journal
Journal of magnetic resonance imaging : JMRI
ISSN: 1522-2586
Titre abrégé: J Magn Reson Imaging
Pays: United States
ID NLM: 9105850
Informations de publication
Date de publication:
07 2020
07 2020
Historique:
received:
25
08
2019
accepted:
28
10
2019
pubmed:
19
12
2019
medline:
11
5
2021
entrez:
19
12
2019
Statut:
ppublish
Résumé
Single V To design and develop a 4D Spiral Dual V Prospective. The studied populations were two phantoms-a straight pipe with a stenotic narrowing and a phantom of the aortic arch which included a calcific polymeric valve-under both steady and pulsatile flows, six healthy volunteers, and eight patients with severe aortic stenosis (AS). 1.5T, Dual V Data from the proposed sequence were compared with data from 4D Cartesian Dual V Steady flows were compared using relative-root-mean-squared-error (RRMSE). For in vivo flows and pulsatile in vitro flows, net flow for corresponding timepoints were compared with the Pearson correlation test (P < 0.01). For steady flows, RRMSEs for Single V The Dual V 2 Technical Efficacy Stage: 1 J. Magn. Reson. Imaging 2020;52:117-128.
Sections du résumé
BACKGROUND
Single V
PURPOSE/HYPOTHESIS
To design and develop a 4D Spiral Dual V
STUDY TYPE
Prospective.
POPULATION
The studied populations were two phantoms-a straight pipe with a stenotic narrowing and a phantom of the aortic arch which included a calcific polymeric valve-under both steady and pulsatile flows, six healthy volunteers, and eight patients with severe aortic stenosis (AS).
FIELD STRENGTH/SEQUENCE
1.5T, Dual V
ASSESSMENT
Data from the proposed sequence were compared with data from 4D Cartesian Dual V
STATISTICAL TESTS
Steady flows were compared using relative-root-mean-squared-error (RRMSE). For in vivo flows and pulsatile in vitro flows, net flow for corresponding timepoints were compared with the Pearson correlation test (P < 0.01).
RESULTS
For steady flows, RRMSEs for Single V
DATA CONCLUSION
The Dual V
LEVEL OF EVIDENCE
2 Technical Efficacy Stage: 1 J. Magn. Reson. Imaging 2020;52:117-128.
Identifiants
pubmed: 31850597
doi: 10.1002/jmri.27004
pmc: PMC7299789
mid: NIHMS1586257
doi:
Types de publication
Editorial
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
117-128Subventions
Organisme : NHLBI NIH HHS
ID : R21 HL132263
Pays : United States
Informations de copyright
© 2019 International Society for Magnetic Resonance in Medicine.
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