Meanings of ictal onset in English

Recordings were first inspected visually to determine ictal onset and then analyzed further with time-frequency analysis.

Finally, receiver operating characteristic (ROC) analysis was performed to evaluate the consistency between quantitatively and visually defined ictal onset zones.

In patients with complex partial seizures, seizure control was significantly improved when a well-defined ictal onset zone could be defined during video-EEG monitoring.

Results: The electrode showing the maximum of the averaged ictal EEG magnitude was part of the visually defined ictal onset zone in all cases.

The average delay between ictal onset and injection was 28 s for the first study and 22 s for the second, third and fourth studies.

SEEG analysis showed that ictal onsets arose from the enlarged amygdala (and hippocampus) in all cases.

Ictal ECoG recordings revealed an ictal onset zone on the right medial temporal lobe, which was different from that defined by MEG.

Ictal onset in localized EDS involved only tubers in 57% and tubers with perituberal cortex in 31%.