ArticleMagma (New York, N.Y.)2019
Effects of carrier frequency mismatch on frequency-selective spectral editing.
Article in Magma (New York, N.Y.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Simultaneous in vivo detection of spectrally resolved glutamate, glutamine, and glutathione at 3 T with NAA-aspartyl editing and echo-time optimization.Magnetic resonance in medicine · 2026Article
- In vivo GABA detection by single-pulse editing with one shot.Magnetic resonance in medicine · 2025Article
- Enhanced detection of glutamate via transverse relaxation encoding with narrowband decoupling in the human brain.Magnetic resonance in medicine · 2025Article
- In vivo magnetic resonance spectroscopy by transverse relaxation encoding with narrowband decoupling.Scientific reports · 2023Article
- Article
- Detection ofScientific reports · 2022Article
- Determination of Brain Metabolite TJournal of magnetic resonance imaging : JMRI · 2020Article
- Signal enhancement of glutamine and glutathione by single-step spectral editing.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2020Article
- Local and Interregional Neurochemical Associations Measured by Magnetic Resonance Spectroscopy for Studying Brain Functions and Psychiatric Disorders.Frontiers in psychiatry · 2020Review
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
objectivesThis study sought to investigate the effects of carrier frequency mismatch on spectral editing and its correction by frequency matching of basis functions. MATERIALS AND
methodsFull density matrix computations and Monte-Carlo simulations based on magnetic resonance spectroscopy (MRS) data collected from five healthy volunteers at 7 T were used to analyze the effects of carrier frequency mismatch on spectral editing. Relative errors in metabolite quantification were calculated with and without frequency matching of basis functions. The algorithm for numerical computation of basis functions was also improved for higher computational efficiency.
resultsWe found significant errors without frequency matching of basis functions when carrier frequency mismatch was generally considered negligible. By matching basis functions with the history of frequency deviation, the mean errors in glutamate, glutamine, γ-aminobutyric acid, and glutathione concentrations were reduced from 3.90%, 1.85%, 11.53%, and 3.43% to 0.18%, 0.34%, 0.40%, and 0.51%, respectively.
conclusionMatching basis functions to frequency deviation history was necessary even when frequency deviations during frequency-selective spectral editing were fairly small. Basis set frequency matching significantly improved accuracy in the quantification of glutamate, glutamine, γ-aminobutyric acid, and glutathione concentrations.
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