A comparative study of myo-inositol quantification using LCmodel at 1.5 T and 3.0 T with 3 D 1H proton spectroscopic imaging of the human brain

Magn Reson Imaging. 2004 May;22(4):523-8. doi: 10.1016/j.mri.2004.01.028.

Abstract

Myo-inositol is a strongly coupled system and resonates at four chemical shift positions. At 1.5 T, only the singlet component at 3.57 ppm is detected. However, at 3 T this resonance is resolved into its components at 3.55 ppm and 3.61 ppm. Due to the increased spectral resolution and signal-to-noise ratio, it is anticipated that the quantification of myo-inositol should improve at 3 T. Using data from normal controls and the LCmodel quantification procedure, we found that the quantification precision, reproducibility and detection sensitivity of myo-inositol is significantly better at 3 T relative to 1.5 T.

Publication types

  • Comparative Study
  • Evaluation Study

MeSH terms

  • Aspartic Acid / analogs & derivatives
  • Aspartic Acid / metabolism
  • Brain / metabolism*
  • Dipeptides / metabolism
  • Female
  • Humans
  • Hydrogen
  • Inositol*
  • Magnetic Resonance Spectroscopy* / instrumentation
  • Magnetic Resonance Spectroscopy* / methods
  • Male
  • Phantoms, Imaging
  • Protons*
  • Reference Values
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted

Substances

  • Dipeptides
  • Protons
  • isospaglumic acid
  • Aspartic Acid
  • Inositol
  • Hydrogen
  • N-acetylaspartate