Electroencephalograph for Detection of Acute Ischemic Stroke

• Detection of stroke [ Designated as safety issue: No ]
  EEG base algorithm system to detect and monitor changes in cerebral electrophysiological parameters as compared to clinical evaluation as assessed by NIHSS score.
  
  

• Correlation to severity of stroke [ Designated as safety issue: No ]
  Correlations between EEG + ERP changes and clinical status as assessed by NIHSS score.
  
  

Inclusion criteria study population Age > 18 years old. Acute stroke symptoms onset within 120 hours of inclusion, and as proximate to event as possible.

Acute ischemic moderate or severe hemispheric stroke (assessed as 5 points or more by NIHSS) and including patients treated by t-PA

Exclusion criteria study population Primary intracranial hemorrhage on admission by CT. Significant movement disorder. Previous major hemispheric stroke. Local skull or skin affliction which prevents electrodes application. Any known condition which in the opinion of the investigator may interfere with the protocol implementation.

Inclusion criteria Control Population

Age > 18 years old.

Exclusion criteria Control Population Primary intracranial hemorrhage on admission by CT. Significant movement disorder. Previous major hemispheric stroke. Local skull or skin affliction which prevents electrodes application. Migraine Any known condition which in the opinion of the investigator may interfere with the protocol implementation.