| Autor: |
Julien F. Bally, Maria-Isabel Vargas, Judit Horvath, Vanessa Fleury, Pierre Burkhard, Shahan Momjian, Pierre Pollak, Colette Boex |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Frontiers in Neurology, Vol 8 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1664-2295 |
| DOI: |
10.3389/fneur.2017.00239 |
| Popis: |
BackgroundSuccessful deep brain stimulation (DBS) in Parkinson’s disease (PD) requires optimal electrode placement. One technique of intraoperative electrode testing is determination of stimulation thresholds inducing corticospinal/corticobulbar tracts (CSBT) motor contractions.ObjectiveThis study aims to analyze correlations between DBS electrode distance to CSBT and contraction thresholds, with either visual or electromyography (EMG) detection, to establish an intraoperative tool devoted to ensure safe distance of the electrode to the CSBT.MethodsTwelve PD patients with subthalamic nucleus DBS participated. Thresholds of muscular contractions were assessed clinically and with EMG, for three different sets of stimulation parameters, all monopolar: 130 Hz high-frequency stimulation (HFS); 2 Hz low-frequency stimulation with either 60 or 210 µs (LFS-60, LFS-210). The anatomical distance of electrode contacts to CSBT was measured from fused CT-MRI.ResultsThe best linear correlation was found for thresholds of visually detected contractions with HFS (r2 = 0.63, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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