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RESEARCH PRODUCT

Selection of the Optimal Algorithm for Real-Time Estimation of Beta Band Power during DBS Surgeries in Patients with Parkinson's Disease

ÁNgeles TepperAlfredo Rosado MuñozAntonio GutierrezMauricio Carlos HenrichJuan Francisco Guerrero MartínezLuciano Schiaffino

subject

0301 basic medicineMaleParkinson's diseaseDeep brain stimulationStereotactic surgeryTime FactorsGeneral Computer ScienceArticle SubjectGeneral Mathematicsmedicine.medical_treatmentDeep Brain StimulationElectroencephalographylcsh:Computer applications to medicine. Medical informaticsSignalNeurosurgical ProceduresStatistics Nonparametriclcsh:RC321-57103 medical and health sciences0302 clinical medicineNeuroimagingSubthalamic NucleusmedicineHumansPerioperative Periodlcsh:Neurosciences. Biological psychiatry. Neuropsychiatrymedicine.diagnostic_testFourier Analysisbusiness.industryGeneral NeuroscienceSpectral density estimationElectroencephalographyParkinson DiseaseGeneral Medicinemedicine.diseasenervous system diseasesSubthalamic nucleus030104 developmental biologysurgical procedures operativenervous systemlcsh:R858-859.7FemalebusinessBeta RhythmMicroelectrodes030217 neurology & neurosurgeryAlgorithmsBiomedical engineeringResearch Article

description

Deep Brain Stimulation (DBS) is a surgical procedure for the treatment of motor disorders in patients with Parkinson’s Disease (PD). DBS involves the application of controlled electrical stimuli to a given brain structure. The implantation of the electrodes for DBS is performed by a minimally invasive stereotactic surgery where neuroimaging and microelectrode recordings (MER) are used to locate the target brain structure. The Subthalamic Nucleus (STN) is often chosen for the implantation of stimulation electrodes in DBS therapy. During the surgery, an intraoperative validation is performed to locate the dorsolateral region of STN. Patients with PD reveal a high power in the β band (frequencies between 13 Hz and 35 Hz) in MER signal, mainly in the dorsolateral region of STN. In this work, different power spectrum density methods were analyzed with the aim of selecting one that minimizes the calculation time to be used in real time during DBS surgery. In particular, the results of three nonparametric and one parametric methods were compared, each with different sets of parameters. It was concluded that the optimum method to perform the real-time spectral estimation of beta band from MER signal is Welch with Hamming windows of 1.5 seconds and 50% overlap.

yearjournalcountryeditionlanguage
2017-12-01Computational Intelligence and Neuroscience
10.1155/2017/1512504http://europepmc.org/articles/PMC5757164