title: Quantitative and trajectory analysis of movement trajectories in supplementary motor area seizures of frontal lobe epilepsy.
abstract: The objectives of this study were to quantitatively analyze the movement trajectories of four types of supplementary motor area (SMA) seizures (hyperkinetic, tonic posturing, fencing posture, tonic head turning), and to compare the movement trajectories of SMA seizures with those of temporal lobe seizures and psychogenic nonepileptic seizures. Ten video/EEG recordings of each type of seizure were obtained. Imaging data collected by video/EEG monitoring were transformed into a digital matrix with image processing software and then transformed into a movement trajectory curve with MATLAB 6.5 software. From these movement trajectories, amplitude, frequency, proximal/distal limb amplitude ratios, and shoulder/abdominal amplitude ratios measurements were calculated. One-way ANOVA revealed statistically significant differences in average amplitude, as well as proximal/distal limb amplitude ratios, in SMA seizures when compared with those of temporal lobe seizures and psychogenic nonepileptic seizures. This study proved the feasibility of quantitative analysis of SMA seizures and suggests it should be further evaluated for its capability to distinguish different seizure semiologies for the diagnosis of epilepsy.
authors.affiliation: Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Chen
authors.forename: Xuhong
authors.initials: X
authors.lastname: Yang
authors.forename: Yonghong
authors.initials: Y
authors.lastname: Liu
authors.forename: Dong
authors.initials: D
authors.lastname: Zeng
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Tang
authors.forename: Bo
authors.initials: B
authors.lastname: Yan
authors.forename: Xu
authors.initials: X
authors.lastname: Lin
authors.forename: Ling
authors.initials: L
authors.lastname: Liu
authors.forename: Hongru
authors.initials: H
authors.lastname: Xu
authors.forename: Dong
authors.initials: D
authors.lastname: Zhou
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001931:Brain Mapping; D002648:Child; D004569:Electroencephalography / Q000379:methods; D001330:Electronic Data Processing / Q000295:instrumentation / Q000379:methods*; D017034:Epilepsy, Frontal Lobe / Q000145:classification / Q000473:pathology* / Q000503:physiopathology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D006948:Hyperkinesis / Q000209:etiology; D008297:Male; D009044:Motor Cortex / Q000503:physiopathology*; D009068:Movement / Q000502:physiology*; D009434:Neural Pathways / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D012640:Seizures / Q000145:classification* / Q000503:physiopathology; D012984:Software; D014741:Video Recording / Q000379:methods; D055815:Young Adult