DocumentCode :
2503322
Title :
Rapid identification of epileptogenic sites in the intracranial EEG
Author :
Yadav, R. ; Swamy, M.N.S. ; Agarwal, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
fYear :
2011
fDate :
Aug. 30 2011-Sept. 3 2011
Firstpage :
7553
Lastpage :
7556
Abstract :
The paper presents a novel computationally simple, easy-to-interpret compressed EEG display for multichannel intracranial EEG recordings. The compressed display is based on the level of sharp activity (relative sharpness index (RSI)) in the EEG, which profoundly increases during paroxysmal activities. RSI is graphically presented as a color-intensity plot that allows compressing several hours of EEG into a single display page. RSI display is a bird´s-eye-view of the EEG that may reveal seizure evolution (´build-up´), seizure precursors, or sites associated with the seizures. We present examples from two patients to illustrate the method´s ability to identify epileptogenic sites that may be difficult to observe in the conventional review process. RSI is compared with the color density spectral array (CDSA) and amplitude integrated EEG (aEEG) display. Examples demonstrate the RSI display to be simple, easy to interpret, computationally light and fast enough for online application.
Keywords :
biomedical equipment; colour displays; electroencephalography; medical disorders; RSI display; color-intensity plot; compressed EEG display; epileptogenic site identification; multichannel intracranial EEG recording; online application; paroxysmal activity; seizure evolution; Conferences; USA Councils; CDSA; EEG; aEEG; compressed EEG display; seizure detection; Brain; Electroencephalography; Epilepsy; Humans; Seizures;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE
Conference_Location :
Boston, MA
ISSN :
1557-170X
Print_ISBN :
978-1-4244-4121-1
Electronic_ISBN :
1557-170X
Type :
conf
DOI :
10.1109/IEMBS.2011.6091862
Filename :
6091862
Link To Document :
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