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Epileptiform events detection using a two-stage approach based on multiscale edge detection and artificial neural networks

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3 Author(s)
AbdelMaseeh, M. ; Biomed. Eng. Dept., Cairo Univ., Cairo, Egypt ; Gaber, A. ; Morsy, A.

An automated detection of epileptiform events can streamline the process of reviewing lengthy EEG records and provide a more quantitative evaluation. This paper introduces a novel two-stage approach of merging human expert knowledge and artificial neural network modeling capabilities. In the first stage, singularities marked through wavelet transform maxima are grouped into epileptiform candidates. These candidates are ranked according to expert mimetic measures that judge candidate morphology, spatial confinement and temporal reproducibility. The second engine is based on ANN. It is trained with the raw EEG data of the topmost candidates to capture high confidence events characteristics. During the evaluation phase, the ANN tests how these characteristics generalize to other candidates. A total of 600 minutes of EEG recordings using all channels were utilized for this study. Data was acquired from 5 patients having different epileptic syndromes. The results showed an average sensitivity of 92% and average selectivity of 96%.

Published in:

Neural Engineering (NER), 2011 5th International IEEE/EMBS Conference on

Date of Conference:

April 27 2011-May 1 2011

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