2014
Preictal Dynamics of EEG Complexity in Intracranially Recorded Epileptic Seizure A Case Report
BOB, Petr, Robert ROMAN, Miroslav SVĚTLÁK, Miloslav KUKLETA, Jan CHLÁDEK et. al.Základní údaje
Originální název
Preictal Dynamics of EEG Complexity in Intracranially Recorded Epileptic Seizure A Case Report
Autoři
BOB, Petr (203 Česká republika, domácí), Robert ROMAN (203 Česká republika, domácí), Miroslav SVĚTLÁK (203 Česká republika, domácí), Miloslav KUKLETA (203 Česká republika, domácí), Jan CHLÁDEK (203 Česká republika, domácí) a Milan BRÁZDIL (203 Česká republika, garant, domácí)
Vydání
Medicine, Philadelphia, Lippincott Williams & Wilkins, 2014, 0025-7974
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30000 3. Medical and Health Sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 5.723
Kód RIV
RIV/00216224:14740/14:00079202
Organizační jednotka
Středoevropský technologický institut
UT WoS
000345521300009
Klíčová slova anglicky
CORRELATION DIMENSION; CONSCIOUSNESS; FRAMEWORK
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 4. 3. 2017 10:08, doc. MUDr. Robert Roman, Ph.D.
Anotace
V originále
Recent findings suggest that neural complexity reflecting a number of independent processes in the brain may characterize typical changes during epileptic seizures and may enable to describe preictal dynamics. With respect to previously reported findings suggesting specific changes in neural complexity during preictal period, we have used measure of pointwise correlation dimension (PD2) as a sensitive indicator of nonstationary changes in complexity of the electroencephalogram (EEG) signal. Although this measure of complexity in epileptic patients was previously reported by Feucht et al,(8) it was not used to study changes in preictal dynamics. With this aim to study preictal changes of EEG complexity, we have examined signals from 11 multicontact depth (intracerebral) EEG electrodes located in 108 cortical and subcortical brain sites, and from 3 scalp EEG electrodes in a patient with intractable epilepsy, who underwent preoperative evaluation before epilepsy surgery. From those 108 EEG contacts, records related to 44 electrode contacts implanted into lesional structures and white matter were not included into the experimental analysis. The results show that in comparison to interictal period (at about 8-6 minutes before seizure onset), there was a statistically significant decrease in PD2 complexity in the preictal period at about 2 minutes before seizure onset in all 64 intracranial channels localized in various brain sites that were included into the analysis and in 3 scalp EEG channels as well. Presented results suggest that using PD2 in EEG analysis may have significant implications for research of preictal dynamics and prediction of epileptic seizures.
Návaznosti
ED1.1.00/02.0068, projekt VaV |
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