Stroke Prevention Screening in Maine — Carotid Artery Ultrasound

The Carotid Connection to Stroke

The carotid arteries are the primary vessels supplying blood to the brain. When atherosclerosis takes hold — the same plaque process responsible for heart attacks — it progressively narrows these vessels and creates unstable deposits along the arterial wall. Those deposits can fracture. When they do, a fragment travels upstream to the brain, blocking flow and triggering a stroke or TIA within seconds.

A transient ischemic attack — commonly called a mini-stroke — is the body's clearest warning signal that significant carotid disease may already be present. It should never be dismissed. A carotid duplex ultrasound is the established diagnostic test for evaluating this risk. It visualizes plaque directly, measures how much the artery is narrowed, and characterizes whether the plaque is stable or vulnerable — critical information for determining whether intervention is needed before a stroke occurs.

Who Should Get Screened

Carotid artery disease develops silently over decades. Most patients have no symptoms until the moment a stroke or TIA occurs. Screening is most valuable for individuals in higher-risk categories — where the likelihood of finding actionable disease is significant.

• You have had a TIA or mini-stroke and want to understand the underlying cause
• Your physician detected a carotid bruit — a whooshing sound in the neck during examination
• You are age 65 or older with high cholesterol, hypertension, diabetes, or a smoking history
• You have a family history of stroke or early cardiovascular disease
• You have known coronary artery disease — carotid and coronary atherosclerosis frequently coexist
• You have peripheral artery disease affecting the legs or other vascular beds

What the Scan Shows

A carotid duplex ultrasound uses real-time Doppler imaging to evaluate blood flow velocity and direction through both carotid arteries. The study measures the degree of stenosis — classified as mild, moderate, or severe — and provides direct visualization of plaque morphology. Stable calcified plaque behaves differently from soft, lipid-rich vulnerable plaque, and that distinction directly shapes clinical decision-making.

The results of this scan inform whether watchful waiting, aggressive medical management, or surgical consultation is appropriate. No radiation, no contrast agents, no needles — just sound waves and clear answers. To learn more about what the study involves, read our guide on TIA, stroke, and carotid artery disease.

How It Works in Maine

BlackPoint Diagnostics is a mobile vascular imaging service. We come to your home or workplace throughout Southern Maine — no hospital, no waiting room, no referral required. Emanuel Papadakis, RDCS, RVT, performs every scan personally, bringing over 20 years of cardiovascular imaging experience to your door. The exam takes approximately 30 minutes, and you receive a written report reviewed by a board-certified cardiologist within 24–48 hours.

The price is $397 flat — all-inclusive. No facility fees, no interpretation billing, no surprises. We offer evening appointments after 7 p.m. and weekend availability because carotid disease does not wait for convenient scheduling windows, and neither should you.