Flexible and compact hybrid metasurfaces for enhanced ultra high field in vivo magnetic resonance imaging

Developments in metamaterials and related structures such as metasurfaces have opened up new possibilities in designing materials and devices with unique properties. Here we report a new hybrid metasurface structure, comprising a two-dimensional metamaterial surface and a very high permittivity diel...

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Bibliographic Details
Published inScientific reports Vol. 7; no. 1; pp. 1678 - 7
Main Authors Schmidt, Rita, Slobozhanyuk, Alexey, Belov, Pavel, Webb, Andrew
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 10.05.2017
Nature Publishing Group
Nature Portfolio
Subjects
639/166/985
639/301/930
Computer Simulation
Electromagnetic Fields
Humanities and Social Sciences
Humans
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
multidisciplinary
Neuroimaging
NMR
Nuclear magnetic resonance
Phantoms, Imaging
Science
Science (multidisciplinary)
Spectrum Analysis
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Summary:Developments in metamaterials and related structures such as metasurfaces have opened up new possibilities in designing materials and devices with unique properties. Here we report a new hybrid metasurface structure, comprising a two-dimensional metamaterial surface and a very high permittivity dielectric substrate, that has been designed to enhance the local performance of an ultra-high field MRI scanner. This new flexible and compact resonant structure is the first metasurface which can be integrated with multi-element close-fitting receive coil arrays that are used for all clinical MRI scans. We demonstrate the utility of the metasurface acquiring in-vivo human brain images and proton MR spectra with enhanced local sensitivity on a commercial 7 Tesla system.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-01932-9