Localized phosphorus-31 NMR spectra of human calf muscle in vivo were obtained by means of echo-planar spectroscopic imaging (EPSI) with a 1.5-T whole-body scanner. The technique permits the measurement of two-dimensional 31 P SI data at a minimum acquisition time of 2.4 s (8 Γ 8 voxels, TR = 300 ms
Spin echo 31P spectroscopic imaging in the human brain
β Scribed by A. A. Maudsley; D. B. Twieg; D. Sappey-Marinier; B. Hubesch; J. W. Hugg; G. B. Matson; M. W. Weiner
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 448 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0740-3194
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β¦ Synopsis
Abstract
Spectroscopic imaging of phosphorus metabolites in the human brain has been carried out with two data acquisition methods: by observation of the free induction decay (FID) signal and by a short spin echo sequence. The resultant spectral images and spatially resolved spectra are compared. Spin echo observation is found to provide spectra of superior quality, and by suitably selecting the sequence timing, no significant increase in T2 losses, as compared with the FID method, is encountered. ^31^P images with approximately 3.5 cm spatial resolution are obtained within times of 37 min at 2.0 T field strength. Β© 1990 Academic Press, Inc.
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