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DTI brainstem stroke

PĂ„vel G Lindberg, Djamel Bensmail, Bernard Bussel, Marc A Maier, Antoine Feydy
BACKGROUND AND PURPOSE: wallerian degeneration (WD) in descending motor tracts after stroke is described at the level of the internal capsule and the brainstem. We investigated whether diffusion tensor imaging (DTI) can detect degeneration in the lateral cervical spinal cord after stroke. METHODS: DTI at 1.5 T of the cervical spinal cord was performed in 4 chronic hemiparetic patients after ischemic stroke. Stroke lesions included the corticospinal tract. DTI was also performed in 12 healthy controls...
January 2011: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
Weihong Zhang, Xin Li, Jiangyang Zhang, Andreas Luft, Daniel F Hanley, Peter van Zijl, Michael I Miller, Laurent Younes, Susumu Mori
Although DTI can provide detailed information about white matter anatomy, it is not yet straightforward enough to quantify the anatomical information it visualizes. In this study, we developed and tested a new tool to perform brain normalization and voxel-based analysis of DTI data. For the normalization part, manually placed landmarks ensured that the visualized white matter tracts were well-registered among the populations. A standard landmark set in ICBM-152 space and an interface to remap them to subject data were integrated in the procedure...
February 1, 2009: NeuroImage
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