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Comparison of B+1 and SAR efficiency for a high-impedance metamaterial shield with different remote RF arrays at 7 T MRI: a simulation study

This study explores high-impedance surface (HIS) metamaterial shields for enhancing the transmit field in whole-body MRI at 7 T. We studied the possibility of placing a metamaterial layer between the gradient coil and bore liner using electromagnetic simulations to evaluate B1+ and SAR efficiency ac...

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Bibliographic Details
Main Authors: López-Martínez, Ignacio N. (Author) , Ladd, Mark E. (Author) , Schmidt, Rita (Author) , Orzada, Stephan (Author)
Format: Article (Journal)
Language:English
Published: 11 September 2025
In: Magnetic resonance materials in physics, biology and medicine
Year: 2025, Pages: ?
ISSN:1352-8661
DOI:10.1007/s10334-025-01295-7
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/s10334-025-01295-7
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Author Notes:Ignacio N. López-Martínez, Mark E. Ladd, Rita Schmidt, Stephan Orzada
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Summary:This study explores high-impedance surface (HIS) metamaterial shields for enhancing the transmit field in whole-body MRI at 7 T. We studied the possibility of placing a metamaterial layer between the gradient coil and bore liner using electromagnetic simulations to evaluate B1+ and SAR efficiency across different impedances.
Item Description:Im Text ist "+" hochgestellt, "1" tiefgestellt
Gesehen am 09.02.2026
Physical Description:Online Resource
ISSN:1352-8661
DOI:10.1007/s10334-025-01295-7

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