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Abstract #3349

Automatic Selection of Artifact Components Via Residual K0 Phase

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.