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date: 20 January 2020

Abstract and Keywords

The main clinical application of functional neuroimaging is mapping cortical regions containing part of the circuitry necessary for somatosensory, motor, and language functions and assessing hemispheric dominance for both language and encoding operations of memory prior to several types of brain surgery. Presently, it is used in conjunction with the classical invasive methods of brain mapping. This chapter presents the case for replacing invasive methods with noninvasive ones given the limitations of the invasive methods that render them unjustifiable as “gold standards.” Evidence is presented that the efficacy of the two types of methods in reducing morbidity, facilitating surgical planning, and enhancing surgical outcome is comparable. Additional advantages of noninvasive presurgical brain mapping are also discussed. The chapter concludes that there are no compelling reasons for invasive mapping in most patients whenever noninvasive methods are available.

Keywords: Presurgical evaluation, Wada test, functional magnetic resonance imaging, magnetoencephalography, transcranial magnetic stimulation, cortical stimulation mapping, epilepsy

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