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31P transverse relaxation times of ATP in human brain in vivo
W I Jung1, S Widmaier, M Bunse
1Max Grundig Klinik, University of Tübingen, Germany.
Magnetic Resonance in Medicine
|December 1, 1993
Abstract:
31P MRS examinations of the brain of 10 healthy volunteers were performed to determine T2 of the coupled ATP signals by use of the localized 90 degrees-TE/2-2662-TE/2-acq frequency selective spin echo sequence for elimination of phase and intensity distortions. The T2 relaxation times obtained are much longer than usually assumed: gamma-ATP: 89 +/- 9 ms; alpha-ATP: 84 +/- 6 ms; beta-ATP: 62 +/- 3 ms.