Movie 1:

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Pre-surgical displacement maps of the brainstem and cerebellum over the cardiac cycle for a single participant (Participant 6). Anterior-posterior tissue motion is shown on the left, where positive displacement is in the posterior direction. Cranial-caudal tissue motion is shown in the middle, where positive tissue motion is in the caudal direction. Magnitude tissue displacement is shown on the right. (Note: For each set of colormaps, the map for the brainstem is on the left and the map for the cerebellum is on the right.)