A carotid ultrasound uses high-frequency sound waves to create images of the carotid arteries in your neck — the vessels that supply blood to the brain. This painless, non-invasive test helps identify plaque buildup (atherosclerosis), which increases your risk of stroke.
It is often recommended for patients with:
- History of stroke or transient ischemic attacks (TIA)
- High cholesterol, hypertension, or diabetes
- Bruit (abnormal sound) heard over the neck vessels
- Family history of vascular disease
Early detection allows for preventive interventions, such as lifestyle changes, medications, or procedures like carotid stenting or endarterectomy.