Physicians are using the combined accuracy of MRI with EGI's dense array EEG technology. The result is localization of pathological physiological events with exact registration with the MRI that provides visualization of pathological anatomy (Seeck et al., 2001).
Lantz, G., Spinelli, L., Seeck, M., de Peralta Menendez, R. G., Sottas, C. C., & Michel, C. M. (2003). Propagation of interictal epileptiform activity can lead to erroneous source localizations: a 128-channel EEG mapping study. Journal of Clinical Neurophysiology, 20, 311-319.
Michel, C. M., Grave de Peralta, R., Lantz, G., Gonzalez Andino, S., Spinelli, L., Blanke, O. et al. (1999). Spatiotemporal EEG analysis and distributed source estimation in presurgical epilepsy evaluation. J Clin Neurophysiol, 16(3), 239-66.
Michel, C. M., Murray, M. M., Lantz, G., Gonzalez, S., Spinelli, L., & Grave de Peralta, R. (2004). EEG source imaging. Clin Neurophysiol, 115(10), 2195-2222.
Seeck, M., Michel, C. M., Spinelli, L., & Lazeyras, F. (2001). EEG mapping and functional MRI in presurgical epilepsy evaluation. Rev Neurol (Paris), 157(8-9 Pt 1), 747-51.
Tucker, D. M., Brown, M., Luu, P., & Holmes, M. D. (2007). Discharges in ventromedial frontal cortex during absence spells. Epilepsy and Behavior, 11, 546-557.