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Abstract #2482

Improved whole brain water suppression efficiency with four-pulse WET in echo-planar spectroscopic imaging (EPSI) at 7 tesla

Graeme A. Keith1 and David A. Porter1

1Imaging Centre of Excellence, University of Glasgow, Glasgow, United Kingdom

Water suppression in MR spectroscopic imaging can be sensitive to variations in B1 in the sample, such as are present at 7 tesla. This work compares two versions of the WET water suppression method, the standard 3-pulse method and the extended 4-pulse method which is expected to be less sensitive to B1 variation. It is found that the 4-pulse method provides a greater consistency of water suppression efficiency across a range of B1 in both phantoms and the brain at 7T.

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