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Πέμπτη 4 Ιανουαρίου 2018

Characterizing the effects of deep brain stimulation with magnetoencephalography: A review

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Publication date: Available online 4 January 2018
Source:Brain Stimulation
Author(s): Irene E. Harmsen, Nathan C. Rowland, Richard A. Wennberg, Andres M. Lozano
BackgroundDeep brain stimulation (DBS) is an important form of neuromodulation that is being applied to patients with motor, mood, or cognitive circuit disorders. Despite the efficacy and widespread use of DBS, the precise mechanisms by which it works remain unknown. Over the last decade, magnetoencephalography (MEG) has become an important functional neuroimaging technique used to study DBS.ObjectiveThis review summarizes the literature related to the use of MEG to characterize the effects of DBS.MethodsPeer reviewed literature on DBS-MEG was obtained by searching the publicly accessible literature databases available on PubMed. The abstracts of all reports were scanned and publications which combined DBS-MEG in human subjects were selected for review.ResultsA total of 32 publications met the selection criteria, and included studies which applied DBS for Parkinson's disease, dystonia, chronic pain, phantom limb pain, cluster headache, and epilepsy. DBS-MEG studies provided valuable insights into network connectivity, pathological coupling, and the modulatory effects of DBS.ConclusionsAs DBS-MEG research continues to develop, we can expect to gain a better understanding of diverse pathophysiological networks and their response to DBS. This knowledge will improve treatment efficacy, reduce side-effects, reveal optimal surgical targets, and advance the development of closed-loop neuromodulation.



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