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MRI-assisted PET motion correction in a healthy volunteer using EPI-derived motion estimates. Upper row: plots of motion estimates – translations along (black) and rotations about (gray) the three orthogonal axes. Lower row: PET data reconstructed before (left) and after (right) motion correction. Substantial improvement in image quality can be observed after correction. Data acquired on the BrainPET prototype, Martinos Center, MGH.
