Image reconstructions with the rotating RF coil

Trakic, A., Wang, H., Weber, E., Li, B. K., Poole, M., Liu, F. and Crozier, S. (2009) Image reconstructions with the rotating RF coil. Journal of Magnetic Resonance, 201 2: 186-198. doi:10.1016/j.jmr.2009.09.009

Author Trakic, A.
Wang, H.
Weber, E.
Li, B. K.
Poole, M.
Liu, F.
Crozier, S.
Title Image reconstructions with the rotating RF coil
Journal name Journal of Magnetic Resonance   Check publisher's open access policy
ISSN 1090-7807
Publication date 2009-12
Sub-type Article (original research)
DOI 10.1016/j.jmr.2009.09.009
Volume 201
Issue 2
Start page 186
End page 198
Total pages 13
Editor Opella, S.J.
Place of publication London, England
Publisher Academic Press
Collection year 2010
Language eng
Subject 1004 Medical Biotechnology
100402 Medical Biotechnology Diagnostics (incl. Biosensors)
090303 Biomedical Instrumentation
090399 Biomedical Engineering not elsewhere classified
861502 Medical Instruments
970109 Expanding Knowledge in Engineering
Abstract Recent studies have shown that rotating a single RF transceive coil (RRFC) provides a uniform coverage of the object and brings a number of hardware advantages (i.e. requires only one RF channel, averts coil–coil coupling interactions and facilitates large-scale multi-nuclear imaging). Motion of the RF coil sensitivity profile however violates the standard Fourier Transform definition of a time-invariant signal, and the images reconstructed in this conventional manner can be degraded by ghosting artifacts. To overcome this problem, this paper presents Time Division Multiplexed — Sensitivity Encoding (TDM-SENSE), as a new image reconstruction scheme that exploits the rotation of the RF coil sensitivity profile to facilitate ghost-free image reconstructions and reductions in image acquisition time. A transceive RRFC system for head imaging at 2 Tesla was constructed and applied in a number of in vivo experiments. In this initial study, alias-free head images were obtained in half the usual scan time. It is hoped that new sequences and methods will be developed by taking advantage of coil motion.
Keyword MRI
Rotating RF coil
Coil sensitivity
Coil coupling
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Information Technology and Electrical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 06 Dec 2009, 00:05:06 EST