The utility of visualizing deep brain stimulation targets at 0.5T was explored. 3D SWI images show direct visualization of the subthalamic nuclei and surrounding iron-rich structures. With the excellent gray-white matter contrast possible at mid-field, 3D T1-weighted imaging can directly visualize the globus pallidus interna. The elevated T1 contrast produces excellent 3D T1-weighted imaging at multiple inversion times which are suitable for, and aid in, atlas-based segmentation approaches for DBS targeting.
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Harris et al. (2024) studied this question.
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