Golden angle dual-inversion recovery acquisition coupled with a flexible time-resolved sparse reconstruction facilitates sequence timing in high-resolution coronary vessel wall MRI at 3 T.

Détails

ID Serval
serval:BIB_6DC576CF0546
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Golden angle dual-inversion recovery acquisition coupled with a flexible time-resolved sparse reconstruction facilitates sequence timing in high-resolution coronary vessel wall MRI at 3 T.
Périodique
Magnetic resonance in medicine
Auteur(s)
Ginami G., Yerly J., Masci P.G., Stuber M.
ISSN
1522-2594 (Electronic)
ISSN-L
0740-3194
Statut éditorial
Publié
Date de publication
03/2017
Peer-reviewed
Oui
Volume
77
Numéro
3
Pages
961-969
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The need for performing dual-inversion recovery (DIR) coronary vessel wall MRI in correspondence to minimal cardiac motion and optimal blood signal nulling is a major challenge. We propose to address this hurdle by combining DIR with a prolonged acquisition window in conjunction with a golden angle radial trajectory and k-t sparse sensitivity encoding (SENSE) reconstruction to enable a flexible a-posteriori selection of optimized imaging parameters.
Coronary vessel wall data acquisition was performed with DIR golden angle radial imaging in n=15 healthy subjects. Images reconstructed using k-t sparse SENSE and different reconstruction window settings were quantitatively (vessel wall conspicuity, thickness, acquisition, and reconstruction window settings) compared with those obtained with more conventional radial DIR imaging.
A flexible retrospective selection of the reconstruction window width and position improved vessel wall conspicuity with respect to baseline acquisitions (P < 0.01). Vessel wall thickness remained unchanged (P = nonsignificant (NS)). Temporal window widths were similar for both approaches (P = NS), yet their position within the cardiac cycle differed significantly (P < 0.02).
A flexible DIR coronary vessel wall MRI technique that alleviates constraints associated with sophisticated sequence timing was proposed. When compared with a more conventional approach, the technique significantly improved image quality. Magn Reson Med 77:961-969, 2017. © 2016 International Society for Magnetic Resonance in Medicine.

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Acetanilides/pharmacology, Animals, Antineoplastic Agents/pharmacology, Apoptosis/drug effects, Blotting, Western, Cell Line, Tumor, Cell Proliferation/drug effects, Chromatin Immunoprecipitation, Drug Synergism, Heterocyclic Compounds, 3-Ring/pharmacology, Humans, Immunohistochemistry, Lymphoma, B-Cell/drug therapy, Mice, Mice, Inbred NOD, Mice, SCID, Nuclear Proteins/antagonists & inhibitors, Real-Time Polymerase Chain Reaction, Transcriptome, Xenograft Model Antitumor Assays
Pubmed
Web of science
Création de la notice
04/03/2016 19:51
Dernière modification de la notice
20/08/2019 15:27
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