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Abstract #3103

Evaluation of Displacement Currents and Conduction Currents in a Close Fitting Head Array with High Permittivity Material

ChristopherM. M. Collins 1,2 , Giuseppe Carluccio 1,2 , Manushka Vaidya 1,2 , Gillian Haemer 1,2 , Riccardo Lattanzi 1,2 , Graham C. Wiggins 1,2 , Daniel K. Sodickson 1,2 , and Qing X. Yang 3

1 Center for Advanced Imaging Innovation and Research (CAI2R), New York University School of Medicine, New York, NY, United States, 2 Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, United States, 3 Center for NMR Research, Penn State College of Medicine, Hershey, PA, United States

While most work with high permittivity materials (HPMs) in MRI has been focused on improving SNR or transmit efficiency for a relatively small region within a much larger coil or array, more recent work demonstrates that HPMs can also improve performance of smaller coils very near the subject, as well as arrays of such coils for the entire region of the anatomy they encompass. Here we illustrate differences in the nature of coil functionality when HPMs are present with graphical plots and analysis of both conduction currents and displacement currents.

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