Abstract #1370

Self-navigating 3D-EPI Sequence for Prospective Motion Correction

Samuel Getaneh Bayih¹, Ernesta Meintjes¹, Marcin Jankiewicz¹, and Andre van der Kouwe ^2,3

¹MRT/UCT Medical Imaging Research Unit, Department of Human Biology, University of Cape Town, Cape Town, South Africa, ²Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, ³Department of Radiology, Harvard Medical School, Boston, MA, United States

Prospective motion correction typically requires additional pulses or hardware to track subject motion, incurring extra costs and increasing the complexity of an MRI experiment. We present a prospective motion tracking solution that instead constructs a volumetric self-navigator from a subset of the partitions acquired during 3D-EPI, thereby allowing motion during and between successive 3D-EPI measurements to be detected and corrected in real time. This work facilitates motion-robust 3D-EPI acquisition for functional MRI applications.

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