Free-breathing inner-volume black-blood imaging of the human heart using two-dimensionally selective local excitation at 3 T.
Détails
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Etat: Public
Version: de l'auteur⸱e
Etat: Public
Version: de l'auteur⸱e
ID Serval
serval:BIB_21D594A68BC8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Free-breathing inner-volume black-blood imaging of the human heart using two-dimensionally selective local excitation at 3 T.
Périodique
Magnetic Resonance In Medicine
ISSN
1522-2594 (Electronic)
ISSN-L
0740-3194
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
68
Numéro
3
Pages
822-829
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural
Résumé
Black-blood fast spin-echo imaging is a powerful technique for the evaluation of cardiac anatomy. To avoid fold-over artifacts, using a sufficiently large field of view in phase-encoding direction is mandatory. The related oversampling affects scanning time and respiratory chest motion artifacts are commonly observed. The excitation of a volume that exclusively includes the heart without its surrounding structures may help to improve scan efficiency and minimize motion artifacts. Therefore, and by building on previously reported inner-volume approach, the combination of a black-blood fast spin-echo sequence with a two-dimensionally selective radiofrequency pulse is proposed for selective "local excitation" small field of view imaging of the heart. This local excitation technique has been developed, implemented, and tested in phantoms and in vivo. With this method, small field of view imaging of a user-specified region in the human thorax is feasible, scanning becomes more time efficient, motion artifacts can be minimized, and additional flexibility in the choice of imaging parameters can be exploited.
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/12/2011 14:21
Dernière modification de la notice
20/08/2019 12:58