ArticleNeuroImage2019
Human Connectome Project-style resting-state functional MRI at 7 Tesla using radiofrequency parallel transmission.
Article in NeuroImage, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed.
- Modular Metamaterials for Adaptable MRI Signal Control: Combining Dipole Array With a New Hexagon-Based Artificial Dielectrics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Comprehensive 4D Parallel Transmission Spatial-Spectral Pulse Design for Slab-Selective Uniform Water-Selective Excitation: Demonstration in the Human Brain at 7 Tesla.Magnetic resonance in medicine · 2026Article
- Advancing whole-brain BOLD functional MRI in humans at 10.5 T with motion-robust 3D echo-planar imaging, parallel transmission, and high-density radiofrequency receive coils.Magnetic resonance in medicine · 2026Article
- Comparison of commercial 1Tx32Rx vs. 8Tx32Rx head coils for routine 7T neuroimaging.Frontiers in neuroimaging · 2026Article
- RF shimming strategy for an open 60-channel RF transmit 7T MRI head coil for routine use on the single transmit mode.Magnetic resonance in medicine · 2025Article
- Denoising complex-valued diffusion MR images using a two-step, nonlocal principal component analysis approach.Magnetic resonance in medicine · 2025Article
- Parallel-transmission spatial spectral pulse design with local specific absorption rate control: Demonstration for robust uniform water-selective excitation in the human brain at 7 T.Magnetic resonance in medicine · 2025Article
- Leveraging ultra-high field (7T) MRI in psychiatric research.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Review
- Denoising complex-valued diffusion MR images using a two-step non-local principal component analysis approach.bioRxiv : the preprint server for biology · 2024Article
- Artificial intelligence for neuro MRI acquisition: a review.Magma (New York, N.Y.) · 2024Review
- Local SAR management strategies to use two-channel RF shimming for fetal MRI at 3 T.Magnetic resonance in medicine · 2024Article
- Reconstruction for 7T high-resolution whole-brain diffusion MRI using two-stage N/2 ghost correction and L1-SPIRiT without single-band reference.Magnetic resonance in medicine · 2023Article
- Mitigating transmit-BMagnetic resonance in medicine · 2022Article
- Neuroimaging at 7 Tesla: a pictorial narrative review.Quantitative imaging in medicine and surgery · 2022Review
- Big contributions of the little brain for precision psychiatry.Frontiers in psychiatry · 2022Article
- New acquisition techniques and their prospects for the achievable resolution of fMRI.Progress in neurobiology · 2021Review
- The Human Connectome Project: A retrospective.NeuroImage · 2021Review
- Statistical power or more precise insights into neuro-temporal dynamics? Assessing the benefits of rapid temporal sampling in fMRI.Progress in neurobiology · 2021Review
- Optimization of adiabatic pulses for pulsed arterial spin labeling at 7 tesla: Comparison with pseudo-continuous arterial spin labeling.Magnetic resonance in medicine · 2021Article
- Evaluation of the whole auditory pathway using high-resolution and functional MRI at 7T parallel-transmit.PloS one · 2021Article
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Authors and funding
7 authors.
Funding
Abstract
We investigate the utility of radiofrequency (RF) parallel transmission (pTx) for whole-brain resting-state functional MRI (rfMRI) acquisition at 7 Tesla (7T). To this end, Human Connectome Project (HCP)-style data acquisitions were chosen as a showcase example. Five healthy subjects were scanned in pTx and single-channel transmit (1Tx) modes. The pTx data were acquired using a prototype 16-channel transmit system and a commercially available Nova 8-channel transmit 32-channel receive RF head coil. Additionally, pTx single-spoke multiband (MB) pulses were designed to image sagittal slices. HCP-style 7T rfMRI data (1.6-mm isotropic resolution, 5-fold slice and 2-fold in-plane acceleration, 3600 image volumes and ∼ 1-h scan) were acquired with pTx and the results were compared to those acquired with the original 7T HCP rfMRI protocol. The use of pTx significantly improved flip-angle uniformity across the brain, with coefficient of variation (i.e., std/mean) of whole-brain flip-angle distribution reduced on average by ∼39%. This in turn yielded ∼17% increase in group temporal SNR (tSNR) as averaged across the entire brain and ∼10% increase in group functional contrast-to-noise ratio (fCNR) as averaged across the grayordinate space (including cortical surfaces and subcortical voxels). Furthermore, when placing a seed in either the posterior parietal lobe or putamen to estimate seed-based dense connectome, the increase in fCNR was observed to translate into stronger correlation of the seed with the rest of the grayordinate space. We have demonstrated the utility of pTx for slice-accelerated high-resolution whole-brain rfMRI at 7T; as compared to current state-of-the-art, the use of pTx improves flip-angle uniformity, increases tSNR, enhances fCNR and strengthens functional connectivity estimation.
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Registered trials
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.