ArticleMagnetic resonance in medicine2024
Glutamate measurements using edited MRS.
Article in Magnetic resonance in medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 6 citations in OpenAlex.
- The Glutamate-Glutathione axis in neuropsychiatric disorders and cancer: From shared mechanisms to non-invasive biomarkers.Redox biology · 2026Review
- Noninvasive 11.7-T Magnetic Resonance Spectroscopy and Imaging Reveals Retinal Metabolic Alterations Induced by Blue Light Exposure.NMR in biomedicine · 2026Article
- In Vivo Glx Measurements From GABA-Edited HERMES at 3 T Are Not Consistent With Those From Short-TE PRESS Across Scanners, Brain Regions, Diagnostic and Age Groups.NMR in biomedicine · 2026Article
- Myo-inositol elevation as an in vivo marker of reactive gliosis in pediatric Friedreich ataxia: evidence from HERMES-edited MR spectroscopy.NeuroImage. Clinical · 2026Article
- Effects of low concentration of fluoride exposure during fetal on behavior and neurotransmitters in adult mice.Biomedical reports · 2025Article
- Proton Magnetic Resonance Spectroscopy for Pediatric Neuroimaging: Key Concepts for Practice.Seminars in ultrasound, CT, and MR · 2025Review
- Simultaneous Measurement of GABA, Glutathione, and Glutamate-Glutamine in the Thalamus using Edited MR Spectroscopy: Feasibility and Applications in Traumatic Brain Injury.Journal of magnetic resonance imaging : JMRI · 2024Article
- GABA and glutamate measurements in temporal cortex of autistic children.Autism research : official journal of the International Society for Autism Research · 2024Article
Corrections and comments
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Authors and funding
12 authors at 4 institutions in 1 country.
Funding
Abstract
purposeTo demonstrate J-difference coediting of glutamate using Hadamard encoding and reconstruction of Mescher-Garwood-edited spectroscopy (HERMES).
methodsDensity-matrix simulations of HERMES (TE 80 ms) and 1D J-resolved (TE 31-229 ms) of glutamate (Glu), glutamine (Gln), γ-aminobutyric acid (GABA), and glutathione (GSH) were performed. HERMES comprised four sub-experiments with editing pulses applied as follows: (A) 1.9/4.56 ppm simultaneously (ON
resultsHERMES simulation and phantom experiments show a Glu-edited signal at 2.34 ppm in the Hadamard sum combination A+B+C+D with no overlapping Gln signal. The J-resolved simulations and phantom experiments show substantial TE modulation of the Glu and Gln signals across the TEs, whose average yields a well-resolved Glu signal closely matching the Glu-edited signal from the HERMES sum spectrum. In vivo quantification of Glu show that the two methods are highly correlated (p < 0.001) with a bias of ∼10%, along with similar between-subject coefficients of variation (HERMES/TE-averaged: ∼7.3%/∼6.9%). Other Hadamard combinations produce the expected GABA-edited (A+B-C-D) or GSH-edited (A-B+C-D) signal.
conclusionHERMES simulation and phantom experiments show the separation of Glu from Gln. In vivo HERMES experiments yield Glu (without Gln), GABA, and GSH in a single MRS scan.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.