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Fig. 2 | Acta Epileptologica

Fig. 2

From: Brief potentially ictal rhythmic discharges on intraoperative electrocorticography predict a good outcome of focal cortical dysplasia after surgical resection: a case report

Fig. 2

a Scalp EEG showed brief 2.5-Hz potentially ictal periodic discharges, with a maximal at F4 within a bilateral parasagittal field. b Ictal EEG showed diffuse low-voltage fast activity. c Intra-operative electrocorticography showed frequent polyspikes present diffusely and focal atypical BIRDs over a 16-channel 4 × 4 subdural grid placed over the right premotor cortex. d Electrocorticography after lesion resection showed no evidence of ongoing epileptiform activity. The labels on the photograph do not represent a particular area

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