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In vivo nuclear Overhauser effect in 31P-(1H) double-resonance experiments in a 1.5-T whole-body MR system
P Bachert-Baumann1, F Ermark, H J Zabel
1Institut für Radiologie and Pathophysiologie, Deutsches Krebsforschungszentrum, Heidelberg, Federal Republic of Germany.
Magnetic Resonance in Medicine
|July 1, 1990
Abstract:
In 31P-(1H) MR experiments of humans in a 1.5-T whole-body system, signal intensity enhancements of 31P resonances of up to 68 +/- 4% (for phosphocreatine of the calf muscle) have been observed upon irradiation at proton frequency. This observation is explained as a nuclear Overhauser effect due to the dipolar coupling between 1H and 31P spins.