Double-tuned four-ring birdcage resonators for in vivo 31P-nuclear magnetic resonance spectroscopy at 11.75 T

T. Lanz, M. Von, K. W. Behr, A. Haase

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

high signal-to-noise ratio (SNR) in 31P-nuclear magnetic resonance (31P-NMR) spectroscopy can be obtained only with good B(o)-field homogeneity and optimal coil sensitivity. This demands double-tuned coils with a highly sensitive 31P channel and an additional 1H channel for 1H- magnetic resonance imaging, shimming, 1H decoupling, and nuclear Overhauser enhancement (NOE). For studies on an 11.75 T magnet, we built coils derived from the four-ring birdcage design originally described by Murphy-Boesch. A comparison with conventional, single-tuned coils shows that, in spite of double tuning, there is no significant loss in 31P sensitivity while the 1H channel provides the requested performance. The coil design offers the advantage of circular polarization on both channels.

Original languageEnglish
Pages (from-to)243-246
Number of pages4
JournalMagnetic Resonance Materials in Physics, Biology and Medicine
Volume5
Issue number3
DOIs
StatePublished - 1997
Externally publishedYes

Keywords

  • Double tuning
  • Four-ring birdcage
  • Magnetic resonance probehead
  • Magnetic resonance spectroscopy
  • Nuclear magnetic resonance coils

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