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.