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Cortical thickness analysis in operculo-insular epilepsy

Obaid S, Tucholka A, Ghaziri J, Jodoin PM, Morency F, Descoteaux M, Bouthillier A, Nguyen DK

Abstract

Background: In temporal lobe epilepsy (TLE), advanced neuroimaging techniques reveal anomalies extending beyond the temporal lobe such as thinning of fronto-central cortices. Operculo-insular epilepsy (OIE) is an under-recognized and poorly characterized condition with the potential of mimicking TLE. In this work, we investigated insular and extra-insular cortical thickness (CT) changes in OIE. Methods: All participants (14 patients with refractory OIE, 9 age- and sex-matched patients with refractory TLE and 26 healthy controls) underwent a T1-weighted acquisition on a 3 T MRI. Anatomical images were processed with Advanced Normalization Tools. Between-group analysis of CT was performed using a two-sided t-test (threshold of p
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Reference

Obaid S, Tucholka A, Ghaziri J, Jodoin PM, Morency F, Descoteaux M, Bouthillier A, Nguyen DK. Cortical thickness analysis in operculo-insular epilepsy. Neuroimage Clin. 2018 May 31;19:727-733. doi: 10.1016/j.nicl.2018.05.033.