How the Test Works

CIMT uses high-resolution ultrasound to measure the thickness of the inner two layers of the carotid artery wall. Because arterial disease is a systemic process, changes measured in the carotid arteries reflect what is likely happening in arteries throughout the body, including the coronary arteries.

What It Can Reveal

The test measures wall thickness against age-based norms and can identify soft, non-calcified plaque. Results are sometimes expressed as an arterial age, a tangible way to understand whether your arteries appear older or younger than your calendar age.

What to Expect

The test is noninvasive, painless, radiation-free, and typically takes about 15 to 20 minutes. It requires no special preparation. Findings are most useful when a clinician interprets them alongside your lipids, blood pressure, metabolic markers, and family history, then builds a plan around the complete picture.