An experimental study on BEM-based cortical imaging of human SEP activities

Author

Zhang, Xiaobing ; Towle, VL ; Sasaki, H. ; Lian, J. ; Li, GL ; He, B.

Author_Institution

Dept. of Bioeng., Illinois Univ., Chicago, IL, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

978

Abstract

The boundary element method (BEM) based cortical imaging technique (CIT) has been applied to an experimental study on human somatosensory evoked potentials (SEPs) recorded from a patient. The accuracy of the analysis was determined by comparing SEPs recorded from the scalp with those recorded directly from the patient´s cortex. The results indicate that the CIT improved the spatial resolution of the scalp potentials, and the reconstructed cortical potential maps are consistent with the direct cortical recordings.

Keywords

bioelectric potentials; biomedical imaging; boundary-elements methods; brain models; electroencephalography; image resolution; somatosensory phenomena; boundary element method-based cortical imaging technique; direct cortical recordings; electrodiagnostics; human SEP activities; medical diagnostic recording; reconstructed cortical potential maps; scalp potentials spatial resolution improvement; Electroencephalography; Geometry; Humans; Magnetic heads; Mathematical model; Roentgenium; Scalp; Skull; Solid modeling; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1019115

Filename

1019115