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Abstract #0246

MRI Connectivity Predictors of Post-Surgical Seizure Outcome in Temporal Lobe Epilepsy

Victoria L Morgan1, Dario J Englot2, Adam W Anderson3, Bennett A Landman4, Ahmet Cakir4, Baxter P Rogers1, and Bassel Abou-Khalil5

1Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States, 2Neurosurgery, Vanderbilt University, Nashville, TN, United States, 3Biomedical Engineering, Vanderbilt University, Nashville, TN, United States, 4Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, United States, 5Neurology, Vanderbilt University, Nashville, TN, United States

Surgical resection of the mesial temporal lobe is a common treatment of drug-resistant temporal lobe epilepsy (TLE). The ability to more accurately predict post-surgical seizure outcome in these patients is a significant clinical challenge. Towards this end, MRI functional and structural connectivity were used to identify a common pattern across a seizure propagation network in TLE patients with seizure free outcome. Then, in test patients with good and bad outcomes, similarity with the model pattern was significantly associated with seizure outcome. Therefore, this non-invasive method may predict seizure outcomes in TLE, which was not possible from the clinical assessments alone.

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