In vivo nuclear Overhauser effect in 31P-(1H) double-resonance experiments in a 1.5-T whole-body MR system.
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.
Bachert-Baumann
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P
Institut für Radiologie and Pathophysiologie, Deutsches Krebsforschungszentrum, Heidelberg, Federal Republic of Germany.
Ermark
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F
Zabel
H J
HJ
Sauter
R
R
Semmler
W
W
Lorenz
W J
WJ
D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008961:Models, Structural; D009132:Muscles / Q000032:analysis; D009369:Neoplasms / Q000175:diagnosis*; D010725:Phosphocreatine / Q000032:analysis; D011522:Protons
D011522:Protons; D010725:Phosphocreatine