The second part of the book then documents the MRI findings obtained in the full range of epileptogenic lesions with the aid of high-quality images. Detailed attention is paid to functional MRI and post-processing, and the examination of subcategories of patients is also discussed. The first part of the book presents background information on epilepsy and explains how to perform an MRI examination. This book aims to provide the clinical and imaging information required in order to decide whether an MRI scan is appropriate and whether it is likely to be sufficient to detect a lesion. MRI can play an important role in resolving such uncertainty and localizing epileptogenic foci. As a result of these circumstances, there is frequently a degree of uncertainty over whether an epileptogenic lesion is being overlooked or simply is not present. Moreover, several genetically determined epilepsy syndromes exist, and by definition are not caused by underlying structural lesions. Epileptogenic lesions are often small and do not change over time.
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