Chemical-shift-selective filter for the in vivo detection of J-coupled metabolites at 3T

Magn Reson Med. 2005 Feb;53(2):275-81. doi: 10.1002/mrm.20362.

Abstract

A chemical-shift-selective filter (CSSF) was applied to the detection of J-coupled metabolites in the human brain. This filter is an acquisition-based technique that requires the chemical shifts (CS's) of different metabolites, but not their whole multiplet structures, to be resolved. The sequence is based on the 2D constant-time spin-echo experiment, which yields pure CS spectra in the indirect dimension. Localization is achieved through point-resolved spectroscopy (PRESS). The method enables unequivocal detection of glutamate and myo-inositol, both in vitro and in vivo in the human brain, at 3T.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Adult
  • Algorithms*
  • Female
  • Humans
  • Magnetic Resonance Spectroscopy / methods*
  • Male
  • Neurotransmitter Agents / metabolism*
  • Prefrontal Cortex / metabolism*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted*
  • Tissue Distribution

Substances

  • Neurotransmitter Agents