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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