Localization of the language -dominant hemisphere with fMRI has been well-validated in epilepsy patients, and progress is being made in mapping higher -level cognitive functions, particularly language and memory.The new developments in functional imaging offer the possibility of localizing the epileptogenic focus noninvasively and mapping cognitive functions.Despite the difficulties of functional imaging in children owing to the limited cooperation that can be expected,development issue,and poor normative data,fMRI provides clinically useful information for presurgical work -up of childhood epilepsy.

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