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Abstract #3766

Fast water suppression for high resolution MRSI by frequency selective spokes pulses at 7T

Tessa N van de Lindt 1 , Ronald Mooiweer 2 , Peter R Luijten 2 , Dennis W J Klomp 2 , and Vincent O Boer 2

1 7 Tesla, UMC Utrecht, Amsterdam, Noord-Holland, Netherlands, 2 UMC Utrecht, Utrecht, Utrecht, Netherlands

In brain MRSI, spatial resolution is limited by a relatively low SNR because localization methods generally require a long TR. With recent developments in more efficient localization methods the duration of the WS sequence has become a limiting factor in MRSI. In this work, an ultra short WS method, by using frequency selective spokes pulses to correct for B1-inhomogenieties, is presented. Sufficient water suppression over a whole slice was obtained and very high resolution 2D MRSI spectra were acquired.

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