The purpose of this study is to investigate insula structural connectivity in temporal epilepsy patients. Insula being at the interface of frontal, parietal, occipital and temporal lobes, its structural organization reflects the brain function. We hypothetize that insular structural organization will be different according to the different subtypes of temporal epilepsy.

The purpose of this study is to investigate insula structural connectivity in temporal epilepsy patients. Insula being at the interface of frontal, parietal, occipital and temporal lobes, its structural organization reflects the brain function. We hypothetize that insular structural organization will be different according to the different subtypes of temporal epilepsy.

Inclusion Criteria:

• epileptic patients: temporal epilepsy or temporal plus epilepsy (temporomesial epilepsy, basal temporal epilepsy, mesio lateral or lateral epilepsy, temporo insular epilepsy, operculo insular epilepsy)
• patients who underwent video EEG monitoring with recorded seizures (at least one)
• patients who underwent a brain MRI with DTI sequence before epilepsy surgery
• patients who did not refuse the use of their clinical and MRI data for this study

Exclusion Criteria:

• patients younger than 15 years old
• patients with previous brain surgery (before MRI)
• uncompleted MRI sequences (DTI, T1 anatomical)

temporal epilepsy patients and healthy subjects

healthy subjects will be selected in the healthy cohort of Nguyen G-Dang (Ghaziri et al., 2017)