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Abstract #3926

Robust EEG-fMRI using optical motion tracking: Retrospective EEG Motion Educated Gradient Artefact Suppression REEG-MEGAS

Danilo Maziero1 and David W Carmichael2

1Department of Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, United States, 2Developmental Imaging and Biophysics Section, University College London, London, United Kingdom

Here we present a method capable of suppressing motion-related EEG GA instabilities, induced EEG voltages and fMRI artefacts in simultaneous EEG-fMRI data. This correction method appeared to allow for the removal of harmonics associated with incomplete GA removal even in a moving subject. Therefore our findings might be helpful in improving both EEG quantification reliability and data quality in populations prone to movement e.g. children or for studying patients with epilepsy during seizures.

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