study:
IamBrain HCP Anatomy & Tractography Tutorial
SCENE FILE:
IamBrain_HCP_Tracts_Anatomy_17April23
SCENE:
Corticospinal tract (cst); surface maps 14, 15 (Somatomotor network)
DESCRIPTION:
Tractography protocol definition: The corticospinal, or pyramidal, tract extends from the spinal cord through the mid brain and distributes to motor cortex, premotor cortex and somatosensory cortex. The tract is seeded from the pons with a large target covering the motor, premotor and somatosensory cortices. An axial exclusion mask is used to restrict tracking to the cerebral peduncle of the midbrain. In addition, the exclusion mask includes two coronal planes, anterior and posterior to the target, to exclude tracking to the prefrontal cortex and occipital cortex respectively, and a plane preventing leakage into the cerebellar peduncles. (Warrington et al., NeuroImage, 2020)
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