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Abstract #4427

Improved motion correction of submillimetre 7T fMRI time series with boundary-based registration (BBR)

Pei Huang1, Johan D Carlin1, Richard N Henson1, and Marta M Correia1

1MRC-Cognition and Brian Sciences Unit, University of Cambridge, Cambridge, United Kingdom

Here, we present a novel approach of utilizing Boundary-Based Registration for realigning submillimetre 7T fMRI time series. We collected fMRI data from 6 human participants and processed the data using either standard rigid body realignment using SPM or our BBR realignment method. We compared the two pre-processed datasets with multiple metrics (tSNR, fCNR and percentage of variance explained by the model) and show that realigning using BBR consistently outperforms conventional methods.

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