Inclusion Criteria- Patients with recent TIA of ischemic stroke (2 weeks) and carotid plaque determined by ultrasound will be included in this study.
Exclusion Criteria- Patients with contraindications to MR scan
- Patients with hemorrhagic stroke
- Patients with evidence of cardiogenic stroke
- Patients with brain tumors
- Patients underwent carotid revascularization therapy, such as stenting and endarterectomy