Evaluation of cortical imaging techniques based on somatosensory evoked potentials.
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 L(1)-norm methods gave the most accurate results in terms of cortical current density imaging of brain responses invoked by somatosensory stimulation.
Bai
Xiaoxiao
X
Department of Biomedical Engineering, University of Minnesota, 312 Church Street, Minneapolis, MN 55455, USA.
Towle
Vernon L
VL
He
Eric J
EJ
He
Bin
B
D000465:Algorithms; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004569:Electroencephalography / Q000379:methods*; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D006801:Humans