ArticleMagma (New York, N.Y.)2024
The possible influence of third-order shim coils on gradient-magnet interactions: an inter-field and inter-site study.
Article in Magma (New York, N.Y.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Evaluation of 7 Tesla pTx Body Coils Regarding Transmit and Receive Performance.Magnetic resonance in medicine · 2026Article
- Measuring the vibrational response of a high performance gradient coil.Magnetic resonance imaging · 2026Article
- Autonomy for MRI Field Cameras: Synchronization, Self-Calibration, and Sequence Detection.Magnetic resonance in medicine · 2026Article
- Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level.Magnetic resonance in medicine · 2026Article
- Human fMRI at 11.7T: Assessing feasibility, stability, and reliability on the Iseult scanner.Imaging neuroscience (Cambridge, Mass.) · 2026Article
- Cerebellar imaging for neuroscience at 9.4 T.Magnetic resonance in medicine · 2025Article
- Blood volume sensitive laminar fMRI with VASO in human hippocampus: Capabilities and biophysical challenges at clinical 7T scanners.bioRxiv : the preprint server for biology · 2025Article
- Short-term gradient imperfections in high-resolution EPI lead to Fuzzy Ripple artifacts.Magnetic resonance in medicine · 2025Article
- Multi-center QA of ultrahigh-field systems.Magma (New York, N.Y.) · 2025Review
- Parallel transmit hybrid pulse design for controlled on-resonance magnetization transfer in RMagnetic resonance in medicine · 2025Article
- Exploring in vivo human brain metabolism at 10.5 T: Initial insights from MR spectroscopic imaging.NeuroImage · 2025Article
- In vivo imaging of the human brain with the Iseult 11.7-T MRI scanner.Nature methods · 2024Article
- Acoustic noise reduction in the NexGen 7 T scanner.Magnetic resonance in medicine · 2024Article
- Fuzzy ripple artifact in high resolution fMRI: identification, cause, and mitigation.bioRxiv : the preprint server for biology · 2024Article
- Theory and mitigation of motional eddy current in high-field eddy current shielding.Journal of applied physics · 2024Article
- Advancements in MR hardware systems and magnetic field control: BPsychoradiology · 2024Review
- Blood volume-sensitive laminar fMRI with VASO in human hippocampus: Capabilities and biophysical challenges at clinical 7T scanners.Imaging neuroscience (Cambridge, Mass.)Article
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31 authors.
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Abstract
objectiveTo assess the possible influence of third-order shim coils on the behavior of the gradient field and in gradient-magnet interactions at 7 T and above. MATERIALS AND
methodsGradient impulse response function measurements were performed at 5 sites spanning field strengths from 7 to 11.7 T, all of them sharing the same exact whole-body gradient coil design. Mechanical fixation and boundary conditions of the gradient coil were altered in several ways at one site to study the impact of mechanical coupling with the magnet on the field perturbations. Vibrations, power deposition in the He bath, and field dynamics were characterized at 11.7 T with the third-order shim coils connected and disconnected inside the Faraday cage.
resultsFor the same whole-body gradient coil design, all measurements differed greatly based on the third-order shim coil configuration (connected or not). Vibrations and gradient transfer function peaks could be affected by a factor of 2 or more, depending on the resonances. Disconnecting the third-order shim coils at 11.7 T also suppressed almost completely power deposition peaks at some frequencies. DISCUSSION: Third-order shim coil configurations can have major impact in gradient-magnet interactions with consequences on potential hardware damage, magnet heating, and image quality going beyond EPI acquisitions.
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