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- W2397809720 abstract "In partial epilepsy with seizures which are resistant to drug treatment, better results may be obtained with surgery. This follows thorough assessment to identify the area of the brain responsible for the origin of the seizures, or the epileptogenic zone (EZ), and show that surgical operation will not cause neurological or cognitive damage which might handicap the patient.This study analyses the value in diagnosis of electroencephalographic dipoles in delimitation of the EZ in patients with refractory partial epilepsy who are candidates for surgical treatment.In 43 patients we made EEG recordings whilst at rest with their eyes shut during 15 minutes. The signal was analysed by digital EEG apparatus and a map drawn of cerebral electrical activity based on the maximum average amplitude of the epileptic spikes. The electric dipole equivalent to epileptiform activity between seizures was obtained using the programme for analysis of electroencephalographic sources BESA. The localization of the EZ by means of the dipole was compared with the results of EEG, MR, SPECT and seizure video-EEG using intracranial electrodes.The results of this study show that the dipole model used is highly sensitive for localization of EZ, and in cases in which the dipole and MR coincided, its sensitivity is similar to that of video-EEG during seizures.The model of dipole used in this study is of great help when indicating surgery for patients with drug-resistant epilepsy." @default.
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- W2397809720 date "2001-01-01" @default.
- W2397809720 modified "2023-10-04" @default.
- W2397809720 title "Localización de la zona epileptógena mediante el análisis de dipolos electroencefalográficos" @default.
- W2397809720 doi "https://doi.org/10.33588/rn.3204.2000398" @default.
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