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RESEARCH PRODUCT
Network effects and pathways in Deep brain stimulation in Parkinson's disease.
Nabin KoiralaOliver GranertGünther DeuschlSergiu GroppaVinzenz FleischerMuthuraman Muthuramansubject
0301 basic medicineMaleDeep brain stimulationParkinson's diseaseNerve netmedicine.medical_treatmentDeep Brain Stimulationbehavioral disciplines and activities03 medical and health sciences0302 clinical medicineSubthalamic NucleusmedicineHumansAgedSupplementary motor areaMotor CortexBrainParkinson DiseaseMiddle AgedSMA*medicine.diseasenervous system diseasesElectrodes ImplantedSubthalamic nucleussurgical procedures operative030104 developmental biologymedicine.anatomical_structureDiffusion Tensor ImagingTreatment Outcomenervous systemFemalePrimary motor cortexNerve NetPsychologytherapeuticsNeuroscience030217 neurology & neurosurgeryDiffusion MRIdescription
Deep brain stimulation of subthalamic nucleus (STN-DBS) became a standard therapeutic option in Parkinson's disease (PD), even though the underlying modulated network of STN-DBS is still poorly described. Probabilistic tractography and connectivity analysis as derived from diffusion tensor imaging (DTI) were performed together with modelling of implanted electrode positions and linked postoperative clinical outcome. Fifteen patients with idiopathic PD without dementia were selected for DBS treatment. After pre-processing, probabilistic tractography was run from cortical and subcortical seeds of the hypothesized network to targets represented by the positions of the active DBS contacts. The performed analysis showed that the projections of the stimulation site to supplementary motor area (SMA) and primary motor cortex (M1) are mainly involved in the network effects of STN-DBS. An involvement of the “hyperdirected pathway” and a clear delimitation of the cortico-spinal tract were demonstrated. This study shows the effects of STN-DBS in PD distinctly rely on the network connections of the stimulated region to M1 and SMA, motor and premotor regions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-08-01 | Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference |