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Abstract #5500

Highly resolved 1H decoupled spectroscopy with a shorter constant time delay using the 2D CT-PRESS with J refocusing

Hidehiro Watanabe1 and Nobuhiro Takaya1

1Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Tsukuba, Japan

The 2D constant time localized sequence of CT-PRESS with J refocusing was proposed, having features of good peak resolution via 1H decoupling along F1 and of J refocusing by a 90-degree pulse at the first echo time. By controlling the time point of J refocusing, shorter constant time delay of Tct can be achieved. This method was developed on a 4.7 T whole-body MR system. Phantom experiments were demonstrated using brain mixture solutions. Three resonances at 2.28 ppm of GABA C2H, 2.35 ppm of glutamate C4H and 2.44 ppm of glutamine C4H were resolved on the phantom spectra.

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