Signal Enhancement of Glutamine and Glutathione by Single-step Spectral Editing
Overview
Affiliations
A single-step spectral editing approach using an always-on editing pulse was proposed to enhance the signals of strongly coupled spins. Specifically, a single-step spectral editing sequence with an always-on editing pulse applied at 2.12 ppm was used to enhance glutamine (Gln) and glutathione (GSH) signals at TE = 56 ms on a 7 T scanner. Density matrix simulations demonstrated that the current method (TE = 56 ms) led to large signal enhancement of at least 61% for Gln and 51% for GSH compared to a previous single-step method (TE = 106 ms). Monte Carlo simulations showed that the current method reduced noise-originated variations by 31% for Gln and 26% for GSH compared to a previous three-step spectral editing method from which the present method was derived.
An L, Li S, Ferraris Araneta M, Johnson C, Shen J Sci Rep. 2022; 12(1):8729.
PMID: 35610241 PMC: 9130156. DOI: 10.1038/s41598-022-12654-y.
Glutamine Imaging: A New Avenue for Glioma Management.
Ekici S, Nye J, Neill S, Allen J, Shu H, Fleischer C AJNR Am J Neuroradiol. 2021; 43(1):11-18.
PMID: 34737183 PMC: 8757564. DOI: 10.3174/ajnr.A7333.