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Visual Features in Stereo-Electroencephalography to Predict Surgical Outcome: A Multicenter Study

C. Abdallah, J. Thomas, O. Aron, T. Avigdor, K. Jaber, I. Doležalová, D. Mansilla, P. Nevalainen, P. Parikh, J. Singh, S. Beniczky, P. Kahane, L. Minotti, S. Chabardes, S. Colnat-Coulbois, L. Maillard, J. Hall, F. Dubeau, J. Gotman, C. Grova, B. Frauscher

. 2025 ; 98 (3) : 547-560. [pub] 20250616

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, multicentrická studie

Perzistentní odkaz   https://www.medvik.cz/link/bmc25021832

Grantová podpora
Doctoral Award Fonds de Recherche du Québec - Santé
Salary Award Fonds de Recherche du Québec - Santé
CIHR, PJT-175056 CIHR - Canada
Doctoral Award CIHR - Canada
//doi.org/10.69777/320890 CIHR - Canada
Doctoral Award Savoy Foundation
CIHR, PJT-175056 CIHR - Canada
Doctoral Award CIHR - Canada
//doi.org/10.69777/320890 CIHR - Canada

OBJECTIVE: Epilepsy surgery needs predictive features that are easily implemented in clinical practice. Previous studies are limited by small sample sizes, lack of external validation, and complex computational approaches. We aimed to identify and validate visually stereo-electroencephalography (SEEG) features with the highest predictive value for surgical outcome, and assess the reliability of their visual extraction. METHODS: We included 177 patients with drug-resistant epilepsy who underwent SEEG-guided surgery at 4 epilepsy centers. We assessed the predictive performance of 10 SEEG features from various SEEG periods for surgical outcome, using the area under the receiver operating characteristic curve, and considering resected channels and surgical outcome as the gold standard. Findings were validated externally using balanced accuracy. Six experts, blinded to outcome, evaluated the visual reliability of the optimal feature using interrater reliability, percentage agreement (standard deviation ± SD) and Gwet's kappa (κ ± SD). RESULTS: The derivation cohort comprised 100 consecutive patients, each with at least 1-year of postoperative follow up (40% temporal lobe epilepsy; 42% Engel Ia). Spatial co-occurrence of gamma spikes and preictal spikes emerged as the optimal predictive feature of surgical outcome (area under the receiver operating characteristic curve 0.82). Applying the optimized threshold from the derivation cohort, external validation in 2 datasets showed similar performances (balanced accuracy 69.2% and 73.2%). Expert interrater reliability for gamma spikes (percentage agreement, 96% ± 2%; κ, 0.63 ± 0.16) and preictal spikes (percentage agreement, 92% ± 2%; κ, 0.65 ± 0.18) were substantial. INTERPRETATION: Spatial co-occurrence of gamma spikes and preictal spikes predicts surgical outcome. These visually identifiable features may reduce the burden of SEEG analysis by reducing analysis time, and improve outcome by guiding surgical resection margins. ANN NEUROL 2025;98:547-560.

Citace poskytuje Crossref.org

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