Connectivity-based segmentation of the periaqueductal gray matter in human with brainstem optimized diffusion MRI.

Hum Brain Mapp · 2015 · PMC4755135 · PMID 26138504

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Due to the spatial constraints of diffusion MRI (1.5 mm isotropic voxels) there is likely to be significant overlap between PAG columns within individual voxels.

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