The signals that drive many of the brain and body’s most essential functions—consciousness, sleep, breathing, heart rate and motion—course through bundles of “white matter” fibers in the brainstem, but imaging systems so far have been unable to finely resolve these crucial neural cables. That has left researchers and doctors with little capability to assess how they are affected by trauma or neurodegeneration. In a new study, a team of MIT, Harvard, and Massachusetts General Hospital researchers unveil AI-powered software capable of automatically segmenting eight distinct bundles in any diffusion MRI sequence.
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