Andrew T. Curtis1,
Ravi S. Menon1
1Medical
Biophysics, University of Western Ontario, London, Ontario, Canada
With the popular development of multi-channel, form fitting receive coils used in fMRI acquisitions, compromises in the EPI image reconstruction process result in a non-zero residual zero-order phase of a complex valued fMRI time-series. This phase is sensitive to residual motion and artifacts. It is proposed to use this signal as a reference to identity and remove artifact components in ICA based filtering.