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Abstract #3856

Detailed Investigations of a Metamaterial Transmit/receive Coil Element for 7 T MRI

Jochen Mosig1, Achim Bahr1, Thomas Bolz1, Andreas Bitz2, Stephan Orzada2

1RF&Dosimetry, IMST GmbH, Kamp-Lintfort, Nordrhein-Westfalen, Germany; 2Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Nordrhein-Westfalen, Germany

In a previous work the design and numerical results for a composite right/left-handed metamaterial coil element were presented. This work shows dosimetric measurement and first imaging results together with further numerical results. A good agreement between the simulations and the measurements was observed. In contrast to the homogeneous B1 field, the circular polarized B1+ field shows some discontinuities. This has lead to the investigation of different designs for the metamaterial element. As a result, an extended layout is presented, that eliminates the local minima in the field distribution of the original element, and shows a significant different field distribution.