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Abstract #3733

15-Channel Head Cap Array using Twisted-Pair Elements for MRI

Julian Adolfo Maravilla1, Colin Taylor Knizek2, Nazem Khairallah1, Ana Claudia Arias1, and Michael Lustig1
1EECS, University of California, Berkeley, Berkeley, CA, United States, 2University of California, Berkeley, Berkeley, CA, United States

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems, Flexible RF Array, Conformal RF Array, fMRI Sleep Studies, TMS/EEG/fMRIA tight fitting and wearable 15-Channel Head Cap Array using Twisted-Pair Elements was designed and characterized for potential use in a multimodal imaging system. The RF Array was characterized in terms of safety and SNR. The elements in the array (Twisted-Pair coil) show >40dB isolation for active detuning with no significant component heating under harsh RF conditions (ΔT<4°C). SNR evaluations revealed a 3x increase in peripheral SNR and retainment of SNR under parallel imaging conditions when compared to a commercial head array. An array of this caliber can be used for fMRI sleep studies and simultaneous TMS/EEG/fMRI.

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Keywords