Functional magnetic resonance imaging during deep brain stimulation: A pilot study in four patients with Parkinson's disease
Identifieur interne : 003023 ( Istex/Checkpoint ); précédent : 003022; suivant : 003024Functional magnetic resonance imaging during deep brain stimulation: A pilot study in four patients with Parkinson's disease
Auteurs : Robert Jech [République tchèque] ; Dušan Urgošík [République tchèque] ; Jaroslav Tint Ra [République tchèque] ; Antonín Nebuželsk [République tchèque] ; Jan Krásensk [République tchèque] ; Roman Liš K [République tchèque] ; Jan Roth [République tchèque] ; Evžen Růži Ka [République tchèque]Source :
- Movement Disorders [ 0885-3185 ] ; 2001-11.
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Abstract
Functional magnetic resonance imaging (fMRI) was performed in patients with Parkinson's disease during deep brain stimulation of the subthalamic nucleus (three patients) and during deep brain stimulation of the ventral intermedius nucleus of the thalamus (one patient). All showed an increase in blood oxygenation level‐dependent signal in the subcortical regions ipsilateral to the stimulated nucleus. This effect cannot be simply explained by a mechanism of depolarization blockade; rather, it is caused by overstimulation of the target nucleus, resulting in the suppression of its spontaneous activity. We confirm that fMRI during deep brain stimulation is a safe method with considerable potential for elucidating the functional connectivity of the stimulated nuclei. © 2001 Movement Disorder Society.
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DOI: 10.1002/mds.1217
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