Title
Connectivity patterns of pallidal DBS electrodes in focal dystonia: A diffusion tensor tractography study.
Abstract
Deep brain stimulation (DBS) of the internal pallidal segment (GPi: globus pallidus internus) is gold standard treatment for medically intractable dystonia, but detailed knowledge of mechanisms of action is still not available. There is evidence that stimulation of ventral and dorsal GPi produces opposite motor effects. The aim of this study was to analyse connectivity profiles of ventral and dorsal GPi. Probabilistic tractography was initiated from DBS electrode contacts in 8 patients with focal dystonia and connectivity patterns compared. We found a considerable difference in anterior–posterior distribution of fibres along the mesial cortical sensorimotor areas between the ventral and dorsal GPi connectivity. This finding of distinct GPi connectivity profiles further confirms the clinical evidence that the ventral and dorsal GPi belong to different functional and anatomic motor subsystems. Their involvement could play an important role in promoting clinical DBS effects in dystonia.
Year
DOI
Venue
2014
10.1016/j.neuroimage.2013.09.009
NeuroImage
Keywords
Field
DocType
Diffusion tensor imaging,Deep brain stimulation,Basal ganglia,Dystonia,Motor networks
Deep brain stimulation,Developmental psychology,Neuroscience,Diffusion MRI,Anatomy,Globus pallidus,Dystonic disorder,Focal dystonia,Dystonia,Psychology,Tractography,Basal ganglia
Journal
Volume
ISSN
Citations 
84
1053-8119
1
PageRank 
References 
Authors
0.38
4
8