FDG‐PET/MRI Coregistration and Diffusion‐Tensor Imaging Distinguish Epileptogenic Tubers and Cortex in Patients with Tuberous Sclerosis Complex: A Preliminary Report

Larger volumes of FDG-PET hypometabolism relative to MRI tuber size and higher ADC values identified epileptogenic tubers and adjoining cortex containing cortical dysplasia in TSC patients with improved accuracy compared with largest tuber by MRI or lowest FA values. Used in conjunction with ictal scalp EEG and interictal magnetoencephalography, these newer neuroimaging techniques should improve the noninvasive evaluation of TSC patients with intractable epilepsy in distinguishing epileptogenic sites for surgical resection.