A Prospective Cohort of Patients With Cervical/Intracranial Arteries Stenosis in China

Inclusion Criteria: 1. Age ≥ 40 and ≤ 80 years; 2. Ultrasound or imaging examinations indicating cervical artery stenosis and/or intracranial artery stenosis (including mild, moderate, severe stenosis, or occlusion); 3. Willing to participate and signing the informed consent form. Exclusion Criteria: 1. Patients with stroke occurring within the past year; 2. Patients with severe systemic diseases, such as respiratory failure, renal failure, gastrointestinal bleeding, coagulation disorders, malignancies, etc.; 3. Patients with a life expectancy of less than one year or those who are unable to complete the study for other reasons.