An on-line system for intraoperative focus localization from array electrocorticography

Author

Barreto, Armando B. ; Principe, Jose C. ; Reid, Steven A.

Author_Institution

Comput. Neuroeng. Lab., Florida Univ., Gainesville, FL, USA

fYear

1994

fDate

10-13 Apr 1994

Firstpage

418

Lastpage

422

Abstract

A system for the intraoperative localization of the focus of epilepsy from array electrocorticography is presented. The spatio-temporal structure that characterizes the surface potential field during the occurrence of focal interictal events is discussed. The spatio-temporal Laplacian transformation is proposed for selectively emphasizing these occurrences. The implementation of the online localization system in a multiprocessor platform is outlined and detailed results from three surgery cases are shown

Keywords

Laplace transforms; electroencephalography; medical signal processing; multiprocessing systems; patient diagnosis; surgery; array electrocorticography; epilepsy; focal interictal events; intraoperative focus localization; multiprocessor platform; online localization system; online system; spatiotemporal Laplacian; spatiotemporal structure; surface potential field; surgery cases; Condition monitoring; Electrodes; Electroencephalography; Epilepsy; Humans; Patient monitoring; Scalp; Skull; Surgery; Video recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '94. Creative Technology Transfer - A Global Affair., Proceedings of the 1994 IEEE

Conference_Location

Miami, FL

Print_ISBN

0-7803-1797-1

Type

conf

DOI

10.1109/SECON.1994.324348

Filename

324348