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Absolute concentrations of metabolites in the adult human brain in vivo: quantification of localized proton MR spectra.

Michaelis, T, Merboldt, K D, Bruhn, H, Hänicke, W, Frahm, J·1993·Radiology

Abstract

In vivo concentrations of cerebral metabolites were obtained by means of 52 single-voxel, localized proton magnetic resonance (MR) spectroscopic examinations of different regions of the brain performed in 26 healthy adults aged 21-32 years. The study was performed at 2.0 T with use of a circularly polarized head coil to ensure homogeneous radio-frequency excitation and signal reception. Proton MR spectra were obtained in the stimulated-echo acquisition mode under fully relaxed conditions (repetition time > or = 6,000 msec) and at short echo times (20 msec) to minimize corrections due to T1 and T2 attenuation and depict the spectra of metabolites with strongly coupled resonances. Absolute concentrations were obtained by means of calibration of resonance signal areas with those of pertinent metabolite solutions from separate studies and correction for coil loading and partial volume effects (eg, with perfused capillary networks and cerebrospinal fluid). The results provide a quantitative basis for studies of both normal human neurochemistry in vivo and metabolic alterations in diseases of the brain.

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Metadata

Authors
Michaelis, T., Merboldt, K. D., Bruhn, H., Hänicke, W., & Frahm, J.
Venue
Radiology
Published
1993-04
Volume
187
Issue
1
Pages
219-227
ISSN
  • 0033-8419 (ISSN-L)
  • 1527-1315
OpenAlex
W2051821447
Cited by
556
References
0
FWCI
31.78
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Absolute concentrations of metabolites in the adult human brain in vivo: quantification of localized proton MR spectra. https://app.cochat.ai/papers/10.1148/radiology.187.1.8451417
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Michaelis, T., Merboldt, K. D., Bruhn, H., Hänicke, W., & Frahm, J. (1993). Absolute concentrations of metabolites in the adult human brain in vivo: quantification of localized proton MR spectra. Radiology. https://doi.org/10.1148/radiology.187.1.8451417

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.