Abstract #3065

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

Jordan Chad¹, Andrew Curtis¹, Qing-San Xiang^2,3, and Sofia Chavez^1,4

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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