Metamaterial Cell for B1+ Field Manipulation at 9.4T MRI

Zivkovic, I; Scheffler, Klaus

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Metamaterial Cell for B1+ Field Manipulation at 9.4T MRI

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Zivkovic, I
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Scheffler, Klaus
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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http://www.ismrm.org/14/program_files/EP17.htm
(Abstract)

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Citation

Zivkovic, I., & Scheffler, K. (2014). Metamaterial Cell for B1+ Field Manipulation at 9.4T MRI. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.

Cite as: https://hdl.handle.net/21.11116/0000-0001-32E3-6

Abstract

Many techniques have been developed to improve magnitude and homogeneity of B1+ field at high field MRI. In order to manipulate B1+ field, we have designed one cell metamaterial (MM) plate. When proposed material was placed between RF transmit coil and phantom, B1+ magnitude and homogeneity significantly improved. Measured results show over 100 increase of B1+ magnitude in specific area in the case when box monopole antenna was used as a transmitter. When small loop antenna was used as a transmitter, there was zero B1+ field without MM plate and significant B1+ when MM plate was inserted.