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Spectroscopy and imaging with a 4 tesla whole‐body mr system
Author(s) -
Bomsdorf H.,
Helzel T.,
Kunz D.,
Röschmann P.,
Tschendel O.,
Wieland J.
Publication year - 1988
Publication title -
nmr in biomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.278
H-Index - 114
eISSN - 1099-1492
pISSN - 0952-3480
DOI - 10.1002/nbm.1940010308
Subject(s) - nuclear magnetic resonance , spectroscopy , in vivo magnetic resonance spectroscopy , nuclear magnetic resonance spectroscopy , chemistry , physics , materials science , magnetic resonance imaging , medicine , radiology , quantum mechanics
Abstract Magnetic resonance (MR) spectroscopy and imaging experiments on humans were performed with a whole‐body MR system at a static field of 4 tesla. Spectroscopic studies focussed on 1 H, 13 C, and 31 P. Imaging of humans turned out to be possible, although below the optimum at this field. This holds especially for body imaging, since RF penetration effects and dielectric resonances influence the RF field homogeneity. Excellent volume selective proton spectra of the human cerebrum and cerebellum were obtained using the stimulated echo method. Natural abundance carbon spectra of the human calf were acquired both undecoupled and with narrowband decoupling, resolving the various triglyceride resonances. Broadband decoupling, however, would have violated SAR guidelines. Liver glycogen was detected on natural abundance 13 C spectra.