Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1019115
