National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Analysis of high frequency oscillations and connectivity in electrophysiology of the brain
Kozlovská, Magda ; Ronzhina, Marina (referee) ; Kolářová, Jana (advisor)
This study is focused on methods of analysis of high frequency oscillations (HFOs) and connectivity in invasive electrophysiology of the brain, comparing the effectiveness of these methods. The aim of the study is to find correlation between HFO and connectivity data and to determine the optimal way of localizing epilepileptic tissue to help pacients undergoing surgery to get rid of epilepsy completely.
Analysis of high frequency oscillations and connectivity in electrophysiology of the brain
Kozlovská, Magda ; Ronzhina, Marina (referee) ; Kolářová, Jana (advisor)
This study is focused on methods of analysis of high frequency oscillations (HFOs) and connectivity in invasive electrophysiology of the brain, comparing the effectiveness of these methods. The aim of the study is to find correlation between HFO and connectivity data and to determine the optimal way of localizing epilepileptic tissue to help pacients undergoing surgery to get rid of epilepsy completely.
Analysis of high-frequency activity in electroencephalogram of animal epilepsy model
Havel, T. ; Kudláček, J. ; Jiruška, Přemysl ; Ježdík, P. ; Čmejla, R.
High frequency oscillations (HFO) are believed to be a new specific biomarker of epileptogenic tissue. According to the reported findings, we hypothesized that HFOs occur more specific to the epileptogenic tissue. To test this hypothesis, we analyzed intracranial electroencephalograms (iEEG) of three subjects of animal epilepsy model. Overall 180 minutes of iEEG records were processed by the automatic high frequency activity detector and further analyzed. The dominant frequency of each segment was determined and categorized as ripples (80-200 Hz) or fast ripples (200-1000 Hz). Even though overall number of HFO detections predominate in the hemisphere where epileptic focus is located, in comparison of each brain structure separately our hypothesis cannot be fully confirmed.

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