ArticleMagnetic resonance in medicine2022
Accelerating Brain Imaging Using a Silent Spatial Encoding Axis.
Article in Magnetic resonance in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Stakeholders' perspectives on an autonomous brain MRI: An interview study.PEC innovation · 2026Article
- Group-Patch Joint Compression: Compressing Dynamic BMagnetic resonance in medicine · 2026Article
- Practical utilization of nonlinear spatial encoding: Fast field mapping and FRONSAC-wave.Magnetic resonance in medicine · 2024Article
- Germany's journey toward 14 Tesla human magnetic resonance.Magma (New York, N.Y.) · 2023Review
- Accelerating Brain Imaging Using a Silent Spatial Encoding Axis.Magnetic resonance in medicine · 2022Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTo characterize the acceleration capabilities of a silent head insert gradient axis that operates at the inaudible frequency of 20 kHz and a maximum gradient amplitude of 40 mT/m without inducing peripheral nerve stimulation.
methodsThe silent gradient axis' acquisitions feature an oscillating gradient in the phase-encoding direction that is played out on top of a cartesian readout, similarly as done in Wave-CAIPI. The additional spatial encoding fills k-space in readout lanes allowing for the acquisition of fewer phase-encoding steps without increasing aliasing artifacts. Fully sampled 2D gradient echo datasets were acquired both with and without the silent readout. All scans were retrospectively undersampled (acceleration factors R = 1 to 12) to compare conventional SENSE acceleration and acceleration using the silent gradient. The silent gradient amplitude and the readout bandwidth were varied to investigate the effect on artifacts and g-factor.
resultsThe silent readout reduced the g-factor for all acceleration factors when compared to SENSE acceleration. Increasing the silent gradient amplitude from 31.5 mT/m to 40 mT/m at an acceleration factor of 10 yielded a reduction in the average g-factor (g
conclusionA silent gradient axis enables high acceleration factors up to R = 10 while maintaining a g-factor close to unity (g
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