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Evaluation of brain imaging has evolved over the past 15 years, moving from analyzing the structure to function through functional magnetic resonance imagery (fMRI). This investigation in children with epilepsy is made in order to understand brain functional areas and the function of epileptic brain and for surgery planning. In this article we present the usefulness and limitations of functional MRI to children diagnosed with epilepsy.

Functional Magnetic Resonance Imaging (fMRI) is one of the newest areas of medical imaging which evaluates the activation of different zones in the brain during the acquisition of brain images by functional magnetic resonance. One of the applications of fMRI is the assessment of language area. In this article we summarize the most important data related to fMRI in the language assessment and we illustrate with a clinical case of a girl with symptomatic epilepsy secondary to a dual pathology of temporal lobe in the dominant cerebral hemisphere (tumour and dysplastic lesion), in which the use of this method helped at presurgical planning.