Title :
Evaluation of Cortical Imaging Techniques Based on Somatosensory Evoked Potentials
Author :
Bai, Xiaoxiao ; Towle, Vernon L. ; He, Eric J. ; He, Bin
Author_Institution :
Dept. of Biomed. Eng., Minnesota Univ., Minneapolis, MN
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
In the present study we evaluate the performance of several inverse algorithms for reconstructing the cortical current density distributions from scalp EEG recordings. The direct cortical SEP recordings in a patient were used as a gold standard to assess the performance of the numerical algorithms. The present results suggest that L1-norm methods gave the most accurate results in terms of cortical current density imaging of brain responses invoked by somatosensory stimulation
Keywords :
bioelectric potentials; electroencephalography; inverse problems; somatosensory phenomena; brain response; cortical current density distribution; cortical imaging technique; inverse algorithm; scalp EEG recording; somatosensory evoked potential; Brain modeling; CD recording; Current density; Electroencephalography; Helium; Image reconstruction; Magnetic recording; Scalp; Spatial resolution; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260505
