Mads Andersen1,2, Kristoffer H. Madsen1, and Lars G. Hanson1,2
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.
