The impact of rhythms analysis technique on electrographic seizure detection (EEG)

Rhythms analysis is a quantitative analysis tool that detects only the spectral patterns of rhythmical activity present on the electroencephalography (EEG) and therefore is very important on seizure detection. In the hospital of S. João, a high amount of EEG records are performed both in the routine EEG and intensive care units (ICU). On November 2009, began in this hospital the study of the impact of the rhythm analysis technique in the electrographic (EEG) seizure detection. The rhythms analysis technique was applied in routine cases and in continuous monitoring cases on adults and neonate patients. The sensitivity, specificity, positive predicted value and negative predicted value of the rhythms analysis in the seizure detection were estimated. The rhythms analysis presented good results as an auxiliary system on the epilepsy cases diagnosed based on the EEG.