Abstract #3408

Interleaved reversed polarity MPRAGE for in vivo B0 readout distortion correction

Robert Frost^1,2, Divya Varadarajan^1,2, Jesper Andersson³, Jonathan R Polimeni^1,2, Bruce Fischl^1,2,4, and André J. W. van der Kouwe^1,2

¹Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, ²Department of Radiology, Harvard Medical School, Boston, MA, United States, ³Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, United Kingdom, ⁴Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, United States

Readout distortion can affect structural imaging with MPRAGE particularly in temporal regions. Interleaved readout polarity MPRAGE allows for estimation of distortion without motion confound between oppositely distorted images. This approach could be useful for single echo MPRAGE imaging with ~200 Hz/px.

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