The introduction of simultaneous PET-MR provides new opportunities for motion tracking and correction during PET imaging. The ideal clinical workflow for a PET-MR exam would allow for PET data to be continuously acquired alongside any desired MR sequences and to reconstruct a motion-corrected PET image utilizing the entire dataset. In this work we combine a surface coil driven by an external signal generator with an MR motion model to navigate PET data during an entire PET-MR exam. We demonstrate the approach on one human subject that underwent a PET-MR exam.
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