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Abstract #4041

Comparison of magnetic and electric coupling coefficients for coaxial coils and standard loop coils

Bernhard Gruber1,2 and Elmar Laistler1
1Division MR Physics - Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria, 2Massachusetts General Hospital, Harvard Medical School, A. A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States

Coaxial coils as highly flexible elements of RF coil arrays have been proposed, and superior inter-element decoupling over standard loops has been reported, but so far without convincing explanation of the underlying mechanism. In an attempt for an explanation measurements of the magnetic and electric coupling coefficients for coaxial and standard loop coils were performed, and showed differences in the S21 findings and the coupling parameters, which are topic of further investigations.

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