Abstract #3092
RF Dipole Coil with Novel Slotted Shielding Plate Achieving an Improved B1 Distribution for 7 T MRI
Zhichao Chen 1,2 , Mahdi Abbasi 1 , Klaus Solbach 2 , Daniel Erni 1 , and Andreas Rennings 1
1
General and Theoretical Electrical
Engineering (ATE), Faculty of Engineering, University of
Duisburg-Essen, Duisburg, NRW, Germany,
2
High
Frequency Engineering (HFT), Faculty of Engineering,
University of Duisburg-Essen, Duisburg, NRW, Germany
A dipole coil with miniaturized eigen-resonant shielding
plate at 300 MHz is presented. The size reduction is
done by etching several slots in the shielding plate and
enclosing the slotted sections with high-dielectric
substrates. The dipole element with proposed slotted
shielding plate exhibits an improvement in terms of B1
homogeneity and penetration depth comparing to the
ordinary (unslotted) case. Single element and
multi-channel setups loaded by a homogeneous phantom are
utilized to evaluate the proposed approach. Without
diminishing the merit of eigen-resonant shielding plate,
the presented dipole coil has more placement flexibility
for certain applications due to the size reduction.
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