Clinical Research Directory

Inclusion Criteria: * Phase I.1.Acute ischemic stroke caused by occlusion of the anterior circulation (intracranial origin of the internal carotid artery or proximal middle cerebral artery (M1/M2)) confirmed by CTA, MRA or DSA (diagnosis in accordance with the "Chinese Guidelines for the Diagnosis and Treatment of Acute Ischemic Stroke 2023")；2. Patient age ≥18 years；3: Last normal time to EEG acquisition time ≤ 72 hours；4: Signed informed consent. Phase II-III 1. Diagnosed by a healthcare professional as a suspected acute stroke patient or a known acute stroke patient 2. Patient age ≥18 years 3. Last normal time to EEG acquisition time ≤ 24 hours 4. Signed informed consent Exclusion Criteria: 1. Wounds in the area of electrode cap placement or active infection in the scalp; 2. Patients who do not cooperate with the EEG examination.