MRI was invariably reliable in all cases. PET results were as reliable in lateralizing the temporal epileptic area, while its efficacy was lower for extratemporal cases. SISCOM effectively localized lesions in extratemporal cases, but its efficacy was lower in temporal lesions. In cases of conflicting pre-surgical results, MRI, with supplementary data from PET, helped to establish correct decisions in temporal epilepsies, while utilization of SISCOM and MRI data is advised for extratemporal cases.
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