Localized in vivo human 1H MRS at very short echo times

Magn Reson Med. 2004 Oct;52(4):898-901. doi: 10.1002/mrm.20201.

Abstract

A new point-resolved spectroscopy (PRESS) sequence was developed that allows localized human proton MR spectra to be acquired at echo times (TEs) of 10 ms or less. The method was implemented on a 4 Tesla Varian research console and a clinical 3 Tesla Siemens Trio scanner. Human brain spectra acquired in vivo from the prefrontal cortex at TE=8 ms showed improved signals from coupled resonances (such as glutamate, glutamine, and myo-inositol) compared to spectra acquired at TE=30 ms. These improvements should result in more accurate quantitation of these metabolites.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Brain / metabolism*
  • Brain Chemistry*
  • Humans
  • Magnetic Resonance Spectroscopy / methods*
  • Phantoms, Imaging
  • Signal Processing, Computer-Assisted