Edited magnetic resonance spectroscopy in the neonatal brain

Neuroradiology. 2022 Feb;64(2):217-232. doi: 10.1007/s00234-021-02821-9. Epub 2021 Oct 15.

Abstract

J-difference-edited spectroscopy is a valuable approach for the detection of low-concentration metabolites with magnetic resonance spectroscopy (MRS). Currently, few edited MRS studies are performed in neonates due to suboptimal signal-to-noise ratio, relatively long acquisition times, and vulnerability to motion artifacts. Nonetheless, the technique presents an exciting opportunity in pediatric imaging research to study rapid maturational changes of neurotransmitter systems and other metabolic systems in early postnatal life. Studying these metabolic processes is vital to understanding the widespread and rapid structural and functional changes that occur in the first years of life. The overarching goal of this review is to provide an introduction to edited MRS for neonates, including the current state-of-the-art in editing methods and editable metabolites, as well as to review the current literature applying edited MRS to the neonatal brain. Existing challenges and future opportunities, including the lack of age-specific reference data, are also discussed.

Keywords: Edited MRS; J-difference editing; Low-concentration metabolites; Neonatal brain; Relaxation time.

Publication types

  • Review

MeSH terms

  • Artifacts
  • Brain* / diagnostic imaging
  • Child
  • Humans
  • Infant, Newborn
  • Magnetic Resonance Imaging
  • Magnetic Resonance Spectroscopy
  • gamma-Aminobutyric Acid*

Substances

  • gamma-Aminobutyric Acid