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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Detection of High-Frequency EEG Activity in Epileptic Patients
 Cimbálník, Jan ; Kremláček, Jan (oponent) ; Jiruška,, Přemysl (oponent) ; Jurák, Pavel (vedoucí práce)
This work deals with automated detection of high-frequency oscillations as a novel electrophysiologic biomarker of epileptogenic tissue in intracranial EEG. Visual detection of these oscillations is a time-consuming process and is prone to reviewer bias. Epilepsy is one of the most common neurological diseases affecting 1 % of population. Even though two thirds of cases are successfully treated with anti-epileptic drugs, the rest of the patients are dependent mainly on surgical procedure, which requires precise localization of pathologic focus. High-frequency oscillations have been studied over the last decade for their potential to localize the focus of pathological tissue. Initial part of this work is a summary of the current state of high-frequency oscillations research and a detailed list of detectors used in research. Within the scope of this work three high-frequency oscillation detectors were developed or enhanced. The description of the algorithms is followed by detector evaluation with regard to the concordance with expert reviewed events, feature estimation and the ability to correctly localize pathological tissue. The final part of the work provides an overview of developed visualization methods and a short summary of achieved scientific results.
Úplný záznam
Detection of High-Frequency EEG Activity in Epileptic Patients
 Cimbálník, Jan ; Kremláček, Jan (oponent) ; Jiruška,, Přemysl (oponent) ; Jurák, Pavel (vedoucí práce)
This work deals with automated detection of high-frequency oscillations as a novel electrophysiologic biomarker of epileptogenic tissue in intracranial EEG. Visual detection of these oscillations is a time-consuming process and is prone to reviewer bias. Epilepsy is one of the most common neurological diseases affecting 1 % of population. Even though two thirds of cases are successfully treated with anti-epileptic drugs, the rest of the patients are dependent mainly on surgical procedure, which requires precise localization of pathologic focus. High-frequency oscillations have been studied over the last decade for their potential to localize the focus of pathological tissue. Initial part of this work is a summary of the current state of high-frequency oscillations research and a detailed list of detectors used in research. Within the scope of this work three high-frequency oscillation detectors were developed or enhanced. The description of the algorithms is followed by detector evaluation with regard to the concordance with expert reviewed events, feature estimation and the ability to correctly localize pathological tissue. The final part of the work provides an overview of developed visualization methods and a short summary of achieved scientific results.
Úplný záznam

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