Abstract #3768

A simultaneous fMRI-EEG acquisition to minimize the MR gradient artifact on human auditory system

Kevin Wen-Kai Tsai^1,2, Hsin-Ju Lee², Ching-Po Lin², Li-Wei Ko³, Wen-Jui Kuo², Toni Auranen⁴, Simo Särkkä⁵, and Fa-Hsuan Lin⁶

¹Aim for the Top University Project, National Taiwan Normal University, Taipei, Taiwan, ²Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan, ³Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan, ⁴Advanced Magnetic Imaging Centre, Low Temperature Laboratory, Aalto University, Espoo, Finland, ⁵Department of Electrical Engineering and Automation, Aalto University, Espoo, Finland, ⁶Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan

Simultaneous fMRI-EEG acquisition provides a good spatial and temporal resolution from MRI and EEG respective to study the human brain function. However, the EEG signal is impaired due to the strong magnetic gradient switching of concurrent MR imaging. A simultaneous interleaved MR InI-EEG recording strategy is proposed to minimize the distortion of the EEG. Our results suggest that the proposed acquisition strategy can reveal similar BOLD contract activation but preserve better auditory evoked potentials than conventional EPI-EEG acquisition.

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