On-line Table 1: Clinical, EEG, and perfusion data of patients with NCSE Age Pre- Lat Signs/ Perfusion (visual Seizure No. (yr) Sex seizure Jerks GCS Ventilation EEG analysis) Classification Epilepsy Comorbidity Survival 1.1 59 M Coma R/Ϫ 6 ϩ SW Hyperperfusion Ins L Coma with NCSE – Cardiac arrest – FT L 1.2 72 F GTCS L/Ϫ 3 ϩ SW Hyperperfusion SSE ϩ Chronic infarction L ϩ PR PR 1.3 60 F GTCS No/Ϫ 3 ϩ SW Hyperperfusion SSE ϩ Traumatic brain injury ϩ FR FR 1.4 72 F GTCS R/ϩ 7 – SW Hyperperfusion SSE ϩ Chronic infarction L – TL TL 1.5 89 F GTCS L/Ϫ 8 – SW Hyperperfusion SSE ϩ Chronic infarction R – FR FR 1.6 67 F CP No/ϩ 11 – SW No Hyperperfusion CPSE ϩ Chronic infarction L ϩ FL 1.7 62 F GTCS R/Ϫ 5 ϩ SW Hyperperfusion SSE – Meningo-encephalitis – FR Ins,TL 1.8 67 M GTCS R/ϩ 5 ϩ SL Hyperperfusion SSE – Subacute SDH L ϩ FP L Ins L 1.9 63 F CP L/Ϫ 11 – SW No hyperperfusion CPSE ϩ Chronic infarction L ϩ TP L Note:—Lat indicates lateralizing; Pre, preceding: R, right; L, left; SW, spike-wave activity; F, frontal; T, temporal; P, parietal; Ins, insular; SDH, subdural hemorrhage; SL, slowing; EEG, electroencephalography; NCSE, nonconvulsive status epilepticus; GCS, Glasgow Coma Scale; GTCS, generalized tonic-clonic seizure; CP, complex-partial; CPSE, complex-partial status epilepticus; SSE, subtle status epilepticus. AJNR Am J Neuroradiol ͉͉www.ajnr.org E1 On-line Table 2: Clinical, EEG, and perfusion data of patients with a postictal state Age Pre- Lat Perfusion (visual No. (yr) Sex seizure Signs GCS Ventilation EEG analysis) Epilepsy Comorbidity Survival 2.1 43 M GTCS R 10 – SL FT L Hypoperfusion ϩ Multiple sclerosis ϩ FT L 2.2 62 M GTCS L 13 – SL TPO R Hypoperfusion ϩ Chronic infarction R ϩ FT R 2.3 76 F GTCS L 3 ϩ SL R Hypoperfusion FTP R – Chronic infarction R – 2.4 44 F GTCS No 14 – Diffuse SL Normal – None ϩ 2.5 15 F GTCS No 3 ϩ SL T L Normal ϩ None ϩ 2.6 17 F GTCS No 10 – SL FT L Normal ϩ None ϩ 2.7 64 M GTCS No 14 – Diffuse SL normal ϩ None ϩ 2.8 40 F GTCS No 14 – Normal normal – None ϩ 2.9 62 M GTCS No 3 ϩ Diffuse SL normal – None ϩ 2.10 17 F GTCS No 11 – Diffuse SL normal – Infection ϩ Note:—GTCS indicates generalized tonic-clonic seizure; O, occipital. E2 ͉ AJNR ͉͉www.ajnr.org.