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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:1441-1446, August 2006
© 2006 American Society of Neuroradiology

Technical Note
BRAIN

Trading Spectral Separation at 3T for Acquisition Speed in Multi Spin-Echo Spectroscopic Imaging

U. Dydak^a, D. Meier^a, R. Lamerichs^b and P. Boesiger^a

^a Institute of Biomedical Engineering, University of Zurich and Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
^b Philips Medical Systems, Best, The Netherlands

Address correspondence to Dr. U. Dydak, Institute for Biomedical Engineering University and ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland; e-mail: ulrike.dydak{at}ethz.ch

Fast multiple spin-echo spectroscopic imaging, also called turbo spectroscopic imaging (TSI), may be enhanced in terms of acquisition speed by taking advantage of the higher spectral separation afforded at higher field strength and by further combining it with sensitivity encoding (SENSE). This article demonstrates the possibilities of this approach at 3T, resulting in scan-time reductions of up to a factor of 10. High-resolution, in vivo, single- and multiple-section spectroscopic imaging data are presented.