Abstract #4834
Metamaterial cell for B1+ field manipulation at 9.4T MRI
Irena Zivkovic 1 and Klaus Scheffler 1,2
1
High Field MRI, Max Planck Institute for
Biological Cybernetics, Tuebingen, Germany,
2
Center
for Integrative Neuroscience, University of Tuebingen,
Tuebingen, Germany
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.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
