Optimal Protocol for Contrast-enhanced Free-running 5D Whole-heart Coronary MR Angiography at 3T.
Details
State: Public
Version: Final published version
License: CC BY-NC-ND 4.0
Serval ID
serval:BIB_C6F73D97748B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Optimal Protocol for Contrast-enhanced Free-running 5D Whole-heart Coronary MR Angiography at 3T.
Journal
Magnetic resonance in medical sciences
ISSN
1880-2206 (Electronic)
ISSN-L
1347-3182
Publication state
Published
Issued date
01/04/2024
Peer-reviewed
Oui
Volume
23
Number
2
Pages
225-237
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Abstract
Free-running 5D whole-heart coronary MR angiography (MRA) is gaining in popularity because it reduces scanning complexity by removing the need for specific slice orientations, respiratory gating, or cardiac triggering. At 3T, a gradient echo (GRE) sequence is preferred in combination with contrast injection. However, neither the injection scheme of the gadolinium (Gd) contrast medium, the choice of the RF excitation angle, nor the dedicated image reconstruction parameters have been established for 3T GRE free-running 5D whole-heart coronary MRA. In this study, a Gd injection scheme, RF excitation angles of lipid-insensitive binominal off-resonance RF excitation (LIBRE) pulse for valid fat suppression and continuous data acquisition, and compressed-sensing reconstruction regularization parameters were optimized for contrast-enhanced free-running 5D whole-heart coronary MRA using a GRE sequence at 3T. Using this optimized protocol, contrast-enhanced free-running 5D whole-heart coronary MRA using a GRE sequence is feasible with good image quality at 3T.
Keywords
contrast medium, coronary Magnetic Resonance angiography, fat suppression, free-running framework, gradient echo
Pubmed
Web of science
Open Access
Yes
Create date
31/01/2023 17:14
Last modification date
03/04/2024 7:08