Dipole source localization of ictal epileptiform activity |
| |
Authors: | S Mine A Yamaura H Iwasa Y Nakajima T Shibata T Itoh |
| |
Affiliation: | Department of Neurological Surgery, Chiba University School of Medicine, Inohana, Japan. |
| |
Abstract: | Dipole source localization of ictal epileptiform activity recorded by scalp EEG was performed in patients prior to surgical treatment. The dipole tracing method combined with the scalp-skull-brain head model was used to locate epileptogenic foci. A digital EEG system was used for data collection. The accuracy of dipole source localization was evaluated by comparing the focus location with that obtained by chronic subdural electrocorticography. In a case of frontal lobe epilepsy with epileptogenic focus in the frontoparietal convexity, the results of dipole source localization agreed well with those obtained with chronic subdural electrocorticography. In a case of lateral temporal lobe epilepsy, the results of dipole source localization were consistent with those obtained with chronic subdural electrocorticography, but a small localization error was observed. The clinical usefulness of and suggestions for improving this method are discussed. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|