Free-breathing inner-volume black-blood imaging of the human heart using two-dimensionally selective local excitation at 3 T.
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State: Public
Version: author
State: Public
Version: author
Serval ID
serval:BIB_21D594A68BC8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Free-breathing inner-volume black-blood imaging of the human heart using two-dimensionally selective local excitation at 3 T.
Journal
Magnetic Resonance In Medicine
ISSN
1522-2594 (Electronic)
ISSN-L
0740-3194
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Volume
68
Number
3
Pages
822-829
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural
Abstract
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
Yes
Create date
16/12/2011 14:21
Last modification date
20/08/2019 12:58