ArticleMagnetic resonance in medicine2011
Reducing SAR and enhancing cerebral signal-to-noise ratio with high permittivity padding at 3 T.
Article in Magnetic resonance in medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
24 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
- Large improvement in RF magnetic fields and imaging SNR with whole-head high-permittivity slurry helmet for human-brain MRI applications at 7 T.Magnetic resonance in medicine · 2025Article
- Dark band artifact in transcranial MR-guided focused ultrasound: Mechanism and mitigation with passive crossed wire antennas.Magnetic resonance imaging · 2023Article
- Novel materials in magnetic resonance imaging: high permittivity ceramics, metamaterials, metasurfaces and artificial dielectrics.Magma (New York, N.Y.) · 2022Review
- Displacement current distribution on a high dielectric constant helmet and its effect on RF field at 10.5 T (447 MHz).Magnetic resonance in medicine · 2021Article
- Tunable Ultrahigh Dielectric Constant (tuHDC) Ceramic Technique to Largely Improve RF Coil Efficiency and MR Imaging Performance.IEEE transactions on medical imaging · 2020Article
- Ceramic resonators for targeted clinical magnetic resonance imaging of the breast.Nature communications · 2020Article
- Toward whole-cortex enhancement with an ultrahigh dielectric constant helmet at 3T.Magnetic resonance in medicine · 2020Article
- A simulation study on the effect of optimized high permittivity materials on fetal imaging at 3T.Magnetic resonance in medicine · 2019Article
- High-permittivity pad design tool for 7T neuroimaging and 3T body imaging.Magnetic resonance in medicine · 2019Article
- Disentangling the effects of high permittivity materials on signal optimization and sample noise reduction via ideal current patterns.Magnetic resonance in medicine · 2019Article
- Human Connectome Project-style resting-state functional MRI at 7 Tesla using radiofrequency parallel transmission.NeuroImage · 2019Article
- Improved detection of fMRI activation in the cerebellum at 7T with dielectric pads extending the imaging region of a commercial head coil.Journal of magnetic resonance imaging : JMRI · 2018Article
- Approaching ultimate intrinsic specific absorption rate in radiofrequency shimming using high-permittivity materials at 7 Tesla.Magnetic resonance in medicine · 2018Article
- Manipulating transmit and receive sensitivities of radiofrequency surface coils using shielded and unshielded high-permittivity materials.Magma (New York, N.Y.) · 2018Article
- Improvements of transmit efficiency and receive sensitivity with ultrahigh dielectric constant (uHDC) ceramics at 1.5 T and 3 T.Magnetic resonance in medicine · 2018Article
- Metamaterial Combining Electric- and Magnetic-Dipole-Based Configurations for Unique Dual-Band Signal Enhancement in Ultrahigh-Field Magnetic Resonance Imaging.ACS applied materials & interfaces · 2017Article
- Improvement of Electromagnetic Field Distributions Using High Dielectric Constant (HDC) Materials for CTL-Spine MRI: Numerical Simulations and Experiments.IEEE transactions on electromagnetic compatibility · 2017Article
- Large improvement of RF transmission efficiency and reception sensitivity for human in vivoMagnetic resonance imaging · 2017Article
- Potential for high-permittivity materials to reduce local SAR at a pacemaker lead tip during MRI of the head with a body transmit coil at 3 T.Magnetic resonance in medicine · 2017Article
Corrections and comments
- Erratum issued
Authors and funding
6 authors.
Funding
Abstract
Previous works have shown that placement of a high-dielectric pad can improve image intensity in a region adjacent to the pad, or that placement of dielectric pads around a large surface of the head can improve image homogeneity on an entire plane through the head in high-field MRI. Here, experimental results show that use of high-dielectric pads around the human head can reduce the required input radiofrequency power by 50% while enhancing image signal-to-noise ratio by 20-40% throughout the cerebrum at 3 T. Thus, dielectric pads may be used to provide a relatively simple and low-cost method for improving quality and safety of MRI in a variety of applications at 3 T.
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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.