Selecting ordered environments in NMR of spin 3/2 nuclei via frequency-sweep pulses

Wen Ling, Alexej Jerschow

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate that frequency-swept pulses can be used for the selective and enhanced detection of quadrupolar nuclei located in anisotropic environments. The primary driving force for this technique development is the field of sodium-MRI, where sodium signals from locally ordered environments are known to be diagnostic of cartilage defects. We demonstrate here simple one-dimensional images of model systems, in which the signals from free sodium ions are suppressed, while ordered sodium is detected via the narrow central transition signal.

Original languageEnglish (US)
Pages (from-to)234-238
Number of pages5
JournalJournal of Magnetic Resonance
Volume176
Issue number2
DOIs
StatePublished - Oct 2005

Keywords

  • Contrast mechanism
  • Double-frequency sweep
  • Double-quantum filter
  • Quadrupolar coupling
  • Satellite transitions
  • Sodium MRI

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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