ArticleImaging neuroscience (Cambridge, Mass.)2024
Optimization and validation of multi-echo, multi-contrast SAGE acquisition in fMRI.
Article in Imaging neuroscience (Cambridge, Mass.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Asymmetric spin echo multi-echo echo planar imaging (ASEME-EPI) sequence for pre-clinical high-field fMRI.bioRxiv : the preprint server for biology · 2024Article
- Rapid simultaneous estimation of relaxation rates using multi-echo, multi-contrast MRI.Magnetic resonance imaging · 2024Article
- Imaging intravoxel vessel size distribution in the brain using susceptibility contrast enhanced MRI.Imaging neuroscience (Cambridge, Mass.)Article
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Authors and funding
6 authors.
Funding
Abstract
The purpose of this study was to optimize and validate a multi-contrast, multi-echo fMRI method using a combined spin- and gradient-echo (SAGE) acquisition. It was hypothesized that SAGE-based blood oxygen level-dependent (BOLD) functional MRI (fMRI) will improve sensitivity and spatial specificity while reducing signal dropout. SAGE-fMRI data were acquired with five echoes (2 gradient-echoes, 2 asymmetric spin-echoes, and 1 spin-echo) across 12 protocols with varying acceleration factors, and temporal SNR (tSNR) was assessed. The optimized protocol was then implemented in working memory and vision tasks in 15 healthy subjects. Task-based analysis was performed using individual echoes, quantitative dynamic relaxation times T
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