Stroke Mechanism Evolution in Intracranial Atherosclerotic Stenosis

Recruiting

Phase N/A Results N/A

Eligibility Criteria

Inclusion Criteria

- Ischemic stroke or TIA within 90 days
- intracranial arteries atherosclerotic moderate to severe stenosis(50%-99%) confirmed by conventional angiography or magnetic resonance angiography
- two or more atherosclerotic risk factors including hypertension, hypercholesterolemia, diabetes mellitus, cigarette smoking, and obesity
- No receiving stent therapy
- No contradictions to antiplatelet medical treatment
- No contradictions to MRI scan
- Ability to comply with all studies

Exclusion Criteria

- Intracranial hemorrhage
- Less than 2 atherosclerotic risk factors
- Pregnancy and other contraindication to MRI scan
- Informed consent not obtained