AI Insight
Researchers developed CLSP-REQA, an AI system that predicts epileptic seizures in real-time while simultaneously assessing EEG signal quality. Testing on 37 patients across two databases, the system achieved prediction accuracy (AUC-ROC) of 0.74 on the CHB-MIT dataset and 0.70 on the SIENA dataset, outperforming previous methods without requiring patient-specific calibration. The system uses a Mamba-BiLSTM architecture with an integrated quality assessment module that adjusts prediction confidence based on signal reliability.
Why it matters
This technology could enable more reliable closed-loop neurostimulation devices that automatically deliver therapeutic interventions when seizures are predicted. By accounting for variable signal quality in real-world conditions and working across different patients without individualized training, the system addresses key barriers to clinical deployment of seizure prediction devices.
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⚠️ Preprint – Noch nicht peer-reviewed
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Abstract: Reliable seizure prediction is a prerequisite for closed-loop neurostimulation therapy, yet existing methods rarely account for the variability in EEG signal quality encountered in real-world deployment, and the overwhelming majority adopt non-strict evaluation protocols that overestimate generalisation performance. We propose CLSP-REQA (Closed-Loop Seizure Prediction with Real-time EEG Quality Assessment), a unified framework that embeds a lightweight signal quality estimator directly within the prediction pipeline. A Real-time EEG Quality Assessment (REQA) module runs in parallel with a Mamba-BiLSTM backbone, producing a scalar quality score q in [0,1] that modulates output confidence through a tiered non-linear fusion function (ECLO). Under strict cross-patient evaluation on the CHB-MIT Scalp EEG Database (n = 23 subjects, 198 seizures), CLSP-REQA achieves an AUC-ROC of 0.7426 +- 0.0199, outperforming the unadapted cross-patient baseline of 0.69 reported by Jemal et al., using only 16 EEG channels compared to 23 in prior work, and without requiring any target-patient data or domain adaptation. On the SIENA Scalp EEG Database (n = 14 subjects, 47 seizures), CLSP-REQA achieves AUC 0.7012 +- 0.0249, substantially surpassing the best domain-adapted cross-patient result of 0.61 on the same dataset, demonstrating strong cross-dataset generalisation. The framework outputs a structured four-tuple (p, q, c, Phi_SHAP) directly compatible with closed-loop neurostimulator interfaces.