Dobór funkcji bazowych do aproksymacji sygnału elektrokortygraficznego w detekcji obszaru padaczkorodnego

• Autorzy: Kołodziej M. , Majkowski A. , Rak R. J. , Rysz A.

Warianty tytułu

EN

Selection of base functions for electrographic signal approximation in the detection of epileptic zone

• Języki publikacji: PL

Abstrakty

PL

Celem badań opisanych jest dobór funkcji bazowych, które pozwolą na dokładne opisanie sygnałów elektrokortykograficznych (ECoG) z zachowaniem ich właściwości diagnostycznych. Sygnały ECoG są powszechnie wykorzystywane do wskazania miejsca obszaru padaczkorodnego mózgu. Do doboru najlepszej rodziny falek w charakterze funkcji bazowych zastosowano algorytm MP (ang. Matching Pursuit). Przedstawiono przykład, w jaki sposób z wykorzystaniem analizy falkowej można wykryć zapisy patologiczne w sygnale ECoG.

EN

The purpose of this research is a selection of base functions, which allow to accurately describe the electrocortical signals (ECoG), while maintaining their diagnostic properties. ECoG signals are commonly used to indicate the epileptogenic zone in the brain. The Matching Pursuit algorithm was used to select the best wavelet family as a base function. An example of using wavelet analysis to detect pathological records in ECoG signal, is demonstrated.

Słowa kluczowe

PL

elektrokortykografia; ECoG; padaczka; analiza falkowa; algorytm Matching Pursuit

EN

electrocorticography; ECoG; epilepsy; wavelet analysis; Matching Pursuit algorithm

• Wydawca: Jacek Doskocz
• Czasopismo: Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna
• Rocznik: 2017
• Tom: Vol. 23, nr 4
• Strony: 253--260
• Opis fizyczny: Bibliogr. 32 poz.

Twórcy

autor

Kołodziej M.

• Politechnika Warszawska, Wydział Elektryczny, Instytut Elektrotechniki Teoretycznej i Systemów Informacyjno-Pomiarowych, 00-662 Warszawa, ul. Koszykowa 75

autor

Majkowski A.

• Politechnika Warszawska, Wydział Elektryczny, Instytut Elektrotechniki Teoretycznej i Systemów Informacyjno-Pomiarowych, 00-662 Warszawa, ul. Koszykowa 75

autor

Rak R. J.

• Politechnika Warszawska, Wydział Elektryczny, Instytut Elektrotechniki Teoretycznej i Systemów Informacyjno-Pomiarowych, 00-662 Warszawa, ul. Koszykowa 75

autor

Rysz A.

• Warszawski Uniwersytet Medyczny, Katedra i Klinika Neurochirurgii, 02-097 Warszawa, ul. Banacha 1A

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