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Abstract #3304

Wireless Integrated Sensing Detector for simultaneous EEG and MRI (WISDEM)

Chunqi Qian1, Yi Chen1, and Xin Yu2
1Michigan State University, East Lansing, MI, United States, 2Massachusetts General Hospital, Boston, MI, United States

Synopsis

Keywords: Hybrid & Novel Systems Technology, Hybrid & Novel Systems Technology

Motivation: Perform simultaneous EEG and fMRI using a compact and wireless detector that can continuously record EEG signals in the presence of switching gradients.

Goal(s): However, MRI scanners generate tremendous artifacts for EEG detection.

Approach: A Wireless Integrated Sensing Detector for simultaneous EEG and MRI (WISDEM) is developed to encode fMRI and EEG signals on distinct sidebands of the detector’s oscillation carrier wave for detection by a standard MRI console over the entire duration of fMRI sequence.

Results: From optogenetically-stimulated somatosensory cortex, the positive correlation between evoked LFP and fMRI signals validates strong neurovascular coupling.

Impact: This 2-in-1 transducer will enable cross-scale brain mapping.

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Keywords