Abstract #1308
Comparison of three different microstrip transmit elements for use in multichannel Tx/Rx body coils at 7 Tesla
Stephan Orzada 1 , Klaus Solbach 2 , Mark E. Ladd 1,3 , and Andreas K. Bitz 1,3
1
Erwin L. Hahn Institute for MRI, Essen,
Germany,
2
Institute
of Microwave and RF Technology, University of
Duisburg-Essen, Duisburg, Germany,
3
Medical
Physics in Radiology, German Cancer Research Center (DKFZ),
Heidelberg, Germany
In this study three different elements are compared
regarding their suitability for large-diameter,
multi-element body coils at 7T: the centrally-fed
microstrip line2 (MSL), the centrally-fed microstrip
line with meanders3, and a new design where the meanders
of the aforementioned element are loaded with a
dielectric to eliminate the end capacitors. Comparison
is done through simulations and phantom experiments on
the single elements. The element with dielectrically
loaded meanders shows a more focused sensitivity then
the MSL or the meander element terminated with
capacitors, which might be beneficial for parallel
transmit and parallel reception.
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