Quantitative Signal Characteristics of Electrocorticography and Stereoelectroencephalography: The Effect of Contact Depth
| العنوان: | Quantitative Signal Characteristics of Electrocorticography and Stereoelectroencephalography: The Effect of Contact Depth |
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| المؤلفون: | Nathalie Jette, Fedor Panov, Lara V. Marcuse, Saadi Ghatan, Ji Yeoun Yoo, James J. Young, Divaldo Camara, Joshua Friedman, Madeline C. Fields |
| المصدر: | Journal of Clinical Neurophysiology |
| بيانات النشر: | Journal of Clinical Neurophysiology, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Adult, Male, Drug Resistant Epilepsy, Physiology, Contact depth, Computed tomography, Signal, 050105 experimental psychology, Stereoelectroencephalography, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Statistical criterion, Epilepsy surgery, Physiology (medical), Phase–amplitude coupling, Medicine, Humans, 0501 psychology and cognitive sciences, Electrocorticography, Original Research, Brain Mapping, medicine.diagnostic_test, business.industry, 05 social sciences, Brain, Electroencephalography, Neurology, Stereoelectroencephalogaphy, Spectral power, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Female, Neurology (clinical), Nuclear medicine, business, Subdural electrodes, 030217 neurology & neurosurgery |
| الوصف: | Supplemental Digital Content is Available in the Text. Purpose: Patients undergoing epilepsy surgery often require invasive EEG, but few studies have examined the signal characteristics of contacts on the surface of the brain (electrocorticography, ECOG) versus depth contacts, used in stereoelectroencephalography (SEEG). As SEEG and ECOG have significant differences in complication rates, it is important to determine whether both modalities produce similar signals for analysis, to ultimately guide management of medically intractable epilepsy. Methods: Twenty-seven patients who underwent SEEG (19), ECOG (6), or both (2) were analyzed for quantitative measures of activity including spectral power and phase–amplitude coupling during approximately 1 hour of wakefulness. The position of the contacts was calculated by coregistering the postoperative computed tomography with a reconstructed preoperative MRI. Using two types of referencing schemes—local versus common average reference—the brain regions where any quantitative measure differed systematically with contact depth were established. Results: Using even the most permissive statistical criterion, few quantitative measures were significantly correlated with contact depth in either ECOG or SEEG contacts. The factors that predicted changes in spectral power and phase–amplitude coupling with contact depth were failing to baseline correct spectral power measures, use of a local rather than common average reference, using baseline correction for phase–amplitude coupling measures, and proximity of other grey matter structures near the region where the contact was located. Conclusions: The signals recorded by ECOG and SEEG have very similar spectral power and phase–amplitude coupling, suggesting that both modalities are comparable from an electrodiagnostic standpoint in delineation of the epileptogenic network. |
| اللغة: | English |
| تدمد: | 1537-1603 0736-0258 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f409159a31d0b7b40c05d1b2a028fd8Test http://europepmc.org/articles/PMC6493682Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....3f409159a31d0b7b40c05d1b2a028fd8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15371603 07360258 |
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