Tiny golden angle stack-of-stars (tygaSoS) free-breathing functional lung imaging.
Fractional ventilation
Lung imaging
Proton fraction
Self-gating
Stack of stars
UTE
Journal
Magnetic resonance imaging
ISSN: 1873-5894
Titre abrégé: Magn Reson Imaging
Pays: Netherlands
ID NLM: 8214883
Informations de publication
Date de publication:
10 2021
10 2021
Historique:
received:
19
02
2021
revised:
21
04
2021
accepted:
15
06
2021
pubmed:
22
6
2021
medline:
7
9
2021
entrez:
21
6
2021
Statut:
ppublish
Résumé
MRI of the lung parenchyma is still challenging due to cardiac and respiratory motion, and the low proton density and short T Free-breathing tyGASoS data were acquired in 10 healthy volunteers (3 smoker (S), 7 non-smoker (NS)). Images in different respiratory phases were reconstructed applying an image-based self-gating technique. Resulting image quality and sharpness, and parenchyma visibility were qualitatively scored by three blinded independent reader, and the signal-to-noise ratio (SNR), proton fraction (f The imaging protocol was well tolerated by all volunteers. Image quality was sufficient for subsequent quantitative analysis in all cases with good to excellent inter-reader reliability. Between expiration (EX) and inspiration (IN) significant differences (p < 0.001) were observed in SNR (EX: 3.73 ± 0.89, IN: 3.14 ± 0.74) and f The study proves the feasibility of free-breathing tyGASoS for multiphase lung imaging. Changes in f
Identifiants
pubmed: 34153438
pii: S0730-725X(21)00104-1
doi: 10.1016/j.mri.2021.06.016
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
24-30Informations de copyright
Copyright © 2021 Elsevier Inc. All rights reserved.