Abstract #5464

A comparison of distortion correction methods for EPI fMRI applied across three 7T platforms

Ian D Driver¹, Olivier Mougin², William T Clarke³, Catarina Rua⁴, Adrian Carpenter⁴, Keith Muir⁵, Stuart Clare³, Susan T Francis², Richard G Wise¹, and Richard Bowtell²

¹Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, Cardiff, United Kingdom, ²Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom, ³Wellcome Centre for Integrative Neuroimaging (FMRIB), Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom, ⁴Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom, ⁵Institute of Neuroscience & Psychology, University of Glasgow, Glasgow, United Kingdom

In preparation for a wider multi-site ‘travelling heads’ 7T fMRI study, we compare the performance of EPI distortion correction techniques for fMRI data across four sites, using three different 7T platforms. Specifically, we compare B₀-map and phase-encoding reversal methods, applied to both task and resting state fMRI data.

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