title: Ictal localization of temporal lobe seizures with scalp/sphenoidal recordings.
abstract: We assessed the reliability and accuracy of scalp/sphenodial recordings for ictal localization by retrospectively analyzing 706 noninvasive ictal recordings from 110 patients who subsequently underwent stereoencephalographic evaluation. Strictly defined unilateral temporal/sphenoidal ictal patterns correctly predicted findings of depth electrode examination in 82 to 94% of cases. These strictly defined predictive patterns could be detected with excellent interrater reliability. The patterns are misleading in only a minority of cases, but cannot be used in isolation for definite ictal localization.
authors: Department of Neurology, University of California, Los Angeles.
authors: M W
authors: MW
authors: Risinger
authors: J
authors: J
authors: Engel
authors: P C
authors: PC
authors: Van Ness
authors: T R
authors: TR
authors: Henry
authors: P H
authors: PH
authors: Crandall
mesh_terms: D004569:Electroencephalography; D004833:Epilepsy, Temporal Lobe / Q000503:physiopathology*; D006801:Humans; D015588:Observer Variation; D012535:Scalp; D013100:Sphenoid Bone; D013702:Temporal Lobe / Q000503:physiopathology*