Low-density scalp electrical source imaging of the ictal onset zone network using source coherence maps.

Introduction: This study investigated low-density scalp electrical source imaging of the ictal onset zone and interictal spike ripple high-frequency oscillation networks using source coherence maps in the pediatric epilepsy surgical workup. Intracranial monitoring, the gold standard for determining epileptogenic zones, has limited spatial sampling. Source coherence analysis presents a promising new non-invasive technique.

Interpreting the Tests of Focal Cortical Dysplasia for Epilepsy Surgery Referral.

Objective: Focal cortical dysplasia (FCD) is a common cause of refractory, focal onset epilepsy in children. Interictal, scalp electroencephalograph (EEG) markers have been associated with these pathologies and epilepsy surgery may be an option for some patients. We aim to study how scalp EEG and magnetic resonance imaging (MRI) markers of FCD affect referral of these patients for surgical evaluation.

The premature brain: developmental and lesional anatomy.

Introduction: Neurodevelopmental outcome in prematures who suffer from a neonatal brain injury depends on the lesion itself, and on how the lesion interferes with the still developing functional anatomy.

Methods: Most of the neuronal migration is completed by midgestation. The second part of the gestation corresponds to the development of the connectivity and sulcation, of the maturation of the oligodendrocytic lineage and of the microglia, and of the vascular bed in the parenchyma beyond the germinal matrix.