Real-time imaging of regional myocardial function using fast-SENC.

Details

Serval ID
serval:BIB_1D1C9F32BEFA
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Real-time imaging of regional myocardial function using fast-SENC.
Journal
Magnetic Resonance In Medicine
Author(s)
Pan L., Stuber M., Kraitchman D.L., Fritzges D.L., Gilson W.D., Osman N.F.
ISSN
0740-3194[print], 0740-3194[linking]
Publication state
Published
Issued date
2006
Volume
55
Number
2
Pages
386-395
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
A technique for fast imaging of regional myocardial function using a spiral acquisition in combination with strain-encoded (SENC) magnetic resonance imaging (MRI) is presented in this paper. This technique, which is termed fast-SENC, enables scan durations as short as a single heartbeat. A reduced field of view (FOV) without foldover artifacts was achieved by localized SENC, which selectively excited the region around the heart. The two images required for SENC imaging (low- and high-tuning) were acquired in an interleaved fashion throughout the cardiac cycle to further shorten the scan time. Regional circumferential contraction and longitudinal shortening of both the left ventricle (LV) and right ventricle (RV) were examined in long- and short-axis views, respectively. The in vivo results obtained from five human subjects and five infarcted dogs are presented. The results of the fast-SENC technique in a single heartbeat acquisition were comparable to those obtained by conventional SENC in a long acquisition time. Therefore, fast-SENC may prove useful for imaging during stress or arrhythmia.
Keywords
Animals, Dogs, Heart/physiology, Humans, Magnetic Resonance Imaging, Cine/methods, Phantoms, Imaging
Pubmed
Web of science
Create date
02/03/2010 16:04
Last modification date
20/08/2019 12:53
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