On the dual contrast enhancement mechanism in frequency-selective inversion-recovery magnetic resonance angiography (IRON-MRA)

Détails

ID Serval
serval:BIB_C84D5C4EEC24
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
On the dual contrast enhancement mechanism in frequency-selective inversion-recovery magnetic resonance angiography (IRON-MRA)
Périodique
Magnetic Resonance in Medicine
Auteur(s)
Vonken E.J., Korosoglou F., Yu J., Schar M., Weissleder R., Stuber M.
ISSN
1522-2594
Statut éditorial
Publié
Date de publication
2009
Peer-reviewed
Oui
Volume
62
Numéro
2
Pages
314-324
Langue
anglais
Notes
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Résumé
The susceptibility of blood changes after administration of a paramagnetic contrast agent that shortens T(1). Concomitantly, the resonance frequency of the blood vessels shifts in a geometry-dependent way. This frequency change may be exploited for incremental contrast generation by applying a frequency-selective saturation prepulse prior to the imaging sequence. The dual origin of vascular enhancement depending first on off-resonance and second on T(1) lowering was investigated in vitro, together with the geometry dependence of the signal at 3T. First results obtained in an in vivo rabbit model are presented.
Pubmed
Web of science
Open Access
Oui
Création de la notice
02/03/2010 17:04
Dernière modification de la notice
20/08/2019 16:43
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