Epilepsy: Generalized Seizure

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Epilepsy is not a single disease. The World Health Organization Dictionary of Epilepsy1 gives this definition: “Epilepsy is a chronic brain disorder of various etiologies characterized by recurrent seizures due to excessive discharge of cerebral neurons”. There are two major types of epilepsy generalized seizures and partial seizures. Generalized seizures begin in both hemisphere of the brain.2 Partial seizures start in part of the brain. It has two groups: Partial Seizures further subdivided in two types, Simple partial seizures and complex partial seizures. 3
Epilepsy can be detected by filtering and storing changes in electrical activity by neurological structure. It is non-invasive method in which electrodes are placed on the surfers of brain and it is performed while patient is awake and it takes 20-30 minutes to complete. EEG involves the placement of electrodes on surfers of brain during the seizure or between seizure events.4
Neuropsychological testing of patient is very helpful in localization of precise focal or multi focal cognitive defect. Neuroimaging and EEG results provide together baseline for comparison with post surgical evaluation. Neuropsychological test also provide specific information about the brain (motor function, language, verbal or visual memory).5
Computed tomography (CT) was the first cross-sectional …show more content…

The sensitivity for identifying subtle anomalies is increasing with improvements in scanner hardware, acquisition sequences and post-acquisition processing. Relevant defects are identified in 80% of patients with refractory focal seizures and in approximately 20% of patients with single unprovoked seizures or epilepsy in remission. MRI protocol have been develop and most protocol use a high resolution, three-dimensional, T1-weighted acquisition of the

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