Abstract #4254

Prospective motion correction for MRI using EEG-equipment

Mads Andersen^1,2, Kristoffer H. Madsen¹, and Lars G. Hanson^1,2

¹Danish Research Center for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark, ²DTU Elektro, Technical University of Denmark, Lyngby, Denmark

A new prospective motion correction technique is presented that is based on signals from gradient switching, in an EEG-cap with interconnected electrodes the subject wears during scanning. The method has no line-of-sight limitations as optical methods, requires no interleaved navigator modules or additional hardware for sites already doing EEG-fMRI. Instead a training scan is performed were signals recorded with the EEG-system are correlated with motion parameters estimated by image realignment. Initial results from application of the method in a phantom are promising.

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