ArticleMagnetic resonance in medicine2023
A 128-channel receive array for cortical brain imaging at 7 T.
Article in Magnetic resonance in medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 22 citations in OpenAlex.
- Group-Patch Joint Compression: Compressing Dynamic BMagnetic resonance in medicine · 2026Article
- Magnetic resonance imaging.Science advances · 2026Review
- A Hybrid RF Coil for Whole-Brain Imaging in Non-Human Primates at 7 T.Magnetic resonance in medicine · 2026Article
- Enhancement of in vivo 7T magnetic resonance neuroimaging via flexible metasurfaces.Npj imaging · 2026Article
- Ultimate Intrinsic SNR in the Torso of Realistic Body Models.Magnetic resonance in medicine · 2026Article
- A unipolar head gradient for high-field MRI without encoding ambiguity.Magnetic resonance in medicine · 2026Article
- Evaluation of an open-face 8-channel transmit 64-channel receive 7T head coil for neuroimaging.Frontiers in neuroscience · 2026Article
- Comparative Assessment of Graglia-Wilton-Peterson and Rao-Wilton-Glisson Basis Functions for Radiofrequency Coil Modeling in Magnetic Resonance Imaging.IEEE journal on multiscale and multiphysics computational techniques · 2026Article
- A shielded 32-channel body transceiver array with integrated electronics for 7 T.Magnetic resonance in medicine · 2025Article
- 500 MHz Inductive Birdcage RF Coil for Brain MRI: Design, Implementation and Validation.IEEE transactions on bio-medical engineering · 2025Article
- A 128-channel receive array with enhanced signal-to-noise ratio performance for 10.5T brain imaging.Magnetic resonance in medicine · 2025Article
- Open-transmit and flexible receiver array for high resolution ultrahigh-field fMRI of the human sensorimotor cortex.Communications biology · 2025Article
- RF coil design strategies for improving SNR at the ultrahigh magnetic field of 10.5T.Magnetic resonance in medicine · 2025Article
- Quo Vadis MRI?Zeitschrift fur medizinische Physik · 2025Article
- Mesoscale Brain Mapping: Bridging Scales and Modalities in Neuroimaging - A Symposium Review.Neuroinformatics · 2024Review
- Performance of receive head arrays versus ultimate intrinsic SNR at 7 T and 10.5 T.Magnetic resonance in medicine · 2024Article
- Comparison of tight-fitting 7T parallel-transmit head array designs using excitation uniformity and local specific absorption rate metrics.Magnetic resonance in medicine · 2024Article
- Advancements in MR hardware systems and magnetic field control: BPsychoradiology · 2024Review
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 3 countries.
Funding
Abstract
purposeA 128-channel receive-only array for brain imaging at 7 T was simulated, designed, constructed, and tested within a high-performance head gradient designed for high-resolution functional imaging.
methodsThe coil used a tight-fitting helmet geometry populated with 128 loop elements and preamplifiers to fit into a 39 cm diameter space inside a built-in gradient. The signal-to-noise ratio (SNR) and parallel imaging performance (1/g) were measured in vivo and simulated using electromagnetic modeling. The histogram of 1/g factors was analyzed to assess the range of performance. The array's performance was compared to the industry-standard 32-channel receive array and a 64-channel research array.
resultsIt was possible to construct the 128-channel array with body noise-dominated loops producing an average noise correlation of 5.4%. Measurements showed increased sensitivity compared with the 32-channel and 64-channel array through a combination of higher intrinsic SNR and g-factor improvements. For unaccelerated imaging, the 128-channel array showed SNR gains of 17.6% and 9.3% compared to the 32-channel and 64-channel array, respectively, at the center of the brain and 42% and 18% higher SNR in the peripheral brain regions including the cortex. For R = 5 accelerated imaging, these gains were 44.2% and 24.3% at the brain center and 86.7% and 48.7% in the cortex. The 1/g-factor histograms show both an improved mean and a tighter distribution by increasing the channel count, with both effects becoming more pronounced at higher accelerations.
conclusionThe experimental results confirm that increasing the channel count to 128 channels is beneficial for 7T brain imaging, both for increasing SNR in peripheral brain regions and for accelerated imaging.
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