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Abstract #3065

DTI with embedded PLACE: geometric distortion correction with no extra scan time and reduced motion sensitivity

Jordan Chad1, Andrew Curtis1, Qing-San Xiang2,3, and Sofia Chavez1,4

1Centre for Addiction and Mental Health, Toronto, ON, Canada, 2Department of Radiology, University of British Columbia, Vancouver, BC, Canada, 3Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, 4Department of Psychiatry, University of Toronto, Toronto, ON, Canada

A phase-based method, PLACE, is embedded into a stock DTI sequence to enable geometric distortion correction without the need for extra scans. We show that geometric distortion correction via this embedded PLACE DTI sequence performs like the more traditional B0-map based correction schemes when there is no motion between scans. Furthermore, when motion occurs, embedded PLACE yields superior results. This embedded PLACE DTI is thus more efficient and less sensitive to motion than traditional B0 mapping methods.

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