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Cardiolucent

Procedure

Carotid ultrasound/doppler

Diagnostics & Exams

Carotid ultrasound with Doppler imaging is a non-invasive study that evaluates the two large arteries on either side of your neck — the carotids — which deliver blood to the brain. The imaging component visualizes the artery wall itself and any plaque sitting inside it, while the Doppler component measures blood velocity through each vessel. Together they reveal whether atherosclerosis is narrowing the arteries and whether that narrowing is severe enough to raise your stroke risk. Dr. Kedan also evaluates intima-media thickness — the inner layers of the artery wall — which is one of the earliest measurable markers of atherosclerosis, often present long before any narrowing develops.

What's Included

  • High-resolution imaging of both carotid arteries from origin to bifurcation
  • Doppler flow velocity measurements at multiple points along each vessel
  • Intima-media thickness measurement for early atherosclerosis detection
  • Plaque characterization (soft, calcified, or unstable)
  • Same-day review of images and measurements with Dr. Kedan
  • Integration with comprehensive stroke risk evaluation
  • Referral coordination with vascular surgery or neurology at Cedars-Sinai if indicated

How It's Performed

The study is performed in our Beverly Hills office. You lie comfortably on your back while the sonographer applies water-based gel to each side of the neck and moves the ultrasound probe gently along each vessel, evaluating both sides systematically with measurements taken at multiple points along each artery. There are no needles, no radiation, and no contrast. Plan on 20 to 30 minutes in the exam room.

How to Prepare

  • No fasting or preparation is required — eat normally.
  • Take all medications as usual.
  • Wear a top with an open collar so the sonographer has clear access to your neck.
  • Avoid heavy necklaces or scarves that day.
  • Bring any prior carotid imaging reports for comparison.

What to Expect After

There is no recovery — you can eat, drive, and resume normal activity immediately. Dr. Kedan reviews the images and Doppler measurements with you the same day, in the same visit. You'll see the plaque, the velocities, and the comparison to normal values before you leave — no waiting period and no separate follow-up call. Because the test is radiation-free and contrast-free, it can be safely repeated as often as surveillance requires.

Indications

  • Strong family history of stroke or vascular disease
  • Longstanding hypertension or hyperlipidemia
  • Smoking history
  • Diabetes or metabolic syndrome
  • Transient vision changes, brief weakness, or unexplained dizziness
  • Carotid bruit detected on physical exam
  • Comprehensive cardiovascular risk evaluation

Common Questions

Frequently Asked Questions

What is a carotid ultrasound with Doppler?
It's a non-invasive imaging test that uses sound waves to evaluate the two large arteries on either side of your neck — the carotids — which deliver blood to your brain. The Doppler component measures blood velocity through these vessels, while the imaging portion shows the artery wall itself and any plaque sitting inside it. Together they tell us whether atherosclerosis is narrowing the artery and whether that narrowing is severe enough to raise your stroke risk.
Why would Dr. Kedan recommend a carotid ultrasound?
Common reasons include a strong family history of stroke or vascular disease, longstanding high blood pressure or high cholesterol, smoking history, diabetes, or symptoms such as transient vision changes, brief weakness, or unexplained dizziness. Dr. Kedan also uses it to detect a bruit (an abnormal sound) heard on physical exam, and as part of a comprehensive cardiovascular risk evaluation for patients who want a fuller picture of their arterial health.
How should I prepare for the test?
There's no preparation needed. Eat normally, take your medications as usual, and wear a top with an open collar so the sonographer has clear access to your neck. You won't need to change into a gown for this study.
Is the test painful?
No. Water-based gel is applied to each side of the neck, and the ultrasound probe is moved gently along the vessel. There are no needles, no radiation, no contrast, and no recovery time. Most patients describe it as completely comfortable.
How long does the scan take?
A complete carotid Doppler study typically takes 20 to 30 minutes — both sides of the neck are evaluated systematically, with measurements taken at multiple points along each artery.
What can the test detect?
Plaque buildup, the degree of narrowing (stenosis) in each carotid artery, the character of the plaque (soft, calcified, or unstable), and the velocity of blood as it passes through any narrowed segment. Dr. Kedan also evaluates intima-media thickness — the inner two layers of the artery wall — which is one of the earliest measurable markers of atherosclerosis, often present long before any narrowing develops.
What happens if the test finds something?
Mild plaque or wall thickening is managed with aggressive risk-factor control — lipids, blood pressure, blood sugar, lifestyle — and serial surveillance scans. Moderate narrowing is monitored more closely and often prompts an advanced lipid evaluation. Severe stenosis is coordinated with vascular surgery or neurology colleagues at Cedars-Sinai for further imaging and possible intervention. Dr. Kedan will discuss exactly what your findings mean before you leave.
Are there any risks?
None. Carotid ultrasound is one of the safest tests in medicine and can be repeated as often as needed for ongoing surveillance without cumulative risk.
When will I get my results?
Dr. Kedan reviews the images and Doppler measurements with you the same day, in the same visit. You'll see the plaque, the velocities, and the comparison to normal values before you leave — no waiting period and no separate follow-up call.
Does insurance cover carotid ultrasound?
Cardiolucent does not accept Medicare or insurance and bills patients directly. We provide a detailed superbill that you can submit to your insurance carrier for out-of-network reimbursement. To discuss whether carotid screening makes sense for you, reach out through the contact form or call (310) 304-5555.

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Medical Disclaimer

The information on this site is for general educational purposes only and is not medical advice, diagnosis, or treatment. Reading this site does not create a doctor–patient relationship. Always consult a qualified healthcare professional for personal guidance. If this is an emergency, call 911. Mentions of medications, devices, or procedures are informational and not endorsements. Full medical disclaimer.

†Some listed indications involve investigational/off-label use. Learn more.