Carotid Ultrasound in Singapore

Medically reviewed by Dr Pinakin V Parekh, General & Interventional Cardiologist (MBBS (Singapore), MRCP (UK), GDFM (Singapore), FAMS (Singapore), FRCP (Glasgow)). Last Updated: 2026, 28 August

Our Cardiologist in Singapore

Dr Pinakin V Parekh

Founder & Medical Director of Trident Heart Centre

Dr Pinakin V Parekh is an interventional cardiologist in Singapore with over 20 years of experience in heart care. He specialises in the diagnosis and treatment of heaart diseases, including procedures such as angiogram and angioplasty.

What Is a Carotid Ultrasound?

A carotid ultrasound is a scan that uses sound waves to create images of the carotid arteries in your neck. These arteries carry blood from your heart to your brain.

The test helps your doctor assess:

  • How well blood is flowing to your brain
  • Whether there is any plaque buildup in the arteries
  • If there is any narrowing (stenosis) that may increase stroke risk

It is a non-invasive and painless test with no radiation exposure.

Why You Might Need a Carotid Ultrasound

Your doctor may recommend this test if you have risk factors for stroke or cardiovascular disease, or if you are experiencing certain symptoms.

You may benefit from a carotid ultrasound if you have:

What Can a Carotid Ultrasound Detect?

A carotid ultrasound helps identify early and more advanced changes in your arteries, including:

  • Plaque buildup in the artery walls
  • Narrowing of the arteries (stenosis)
  • Reduced or disrupted blood flow to the brain
  • Early signs of atherosclerosis (hardening of the arteries)

Detecting these changes early allows for timely management and reduces the risk of stroke.

How Is a Carotid Ultrasound Different From Echocardiogram?

A carotid ultrasound and an echocardiogram assess different parts of your cardiovascular system.

Carotid Ultrasound Echocardiogram
What it looks at

Arteries in the neck (carotid arteries)

Structure and function of the heart

Main purpose

Detect plaque buildup and narrowing that may increase stroke risk

Assess how well the heart is pumping and functioning

Conditions detected

Carotid artery disease, stroke risk, reduced blood flow to brain

Heart valve problems, heart muscle function, heart failure

Focus area

Blood vessels supplying the brain

Heart chambers and valves

Type of information

Blood flow and artery narrowing

Heart structure, movement, and pumping ability

How a Carotid Ultrasound Is Performed

A carotid ultrasound is a quick and comfortable scan that does not require any needles or injections.

Before your scan:

  • No fasting is usually required
  • You may be advised to wear comfortable clothing with access to your neck
  • Remove necklaces or accessories around the neck area

During the test:

  • You will lie comfortably on an examination bed
  • A gel is applied to your neck to help the scanner glide smoothly
  • A small handheld device (probe) is moved over the skin to capture images
  • You may be asked to slightly adjust your head position

The scan is painless and typically takes 15–30 minutes.

After the scan:

  • You can return to your normal activities immediately
  • There is no recovery time needed
  • Your doctor will review the images and discuss the results with you

What Do the Results Mean?

Your results help determine your level of stroke risk and guide the next steps in care.

Results are generally described as:

  • Normal – No significant plaque or narrowing
  • Mild plaque – Early buildup that may require monitoring and lifestyle changes
  • Moderate narrowing – Reduced blood flow that may need closer management
  • Severe narrowing – Higher stroke risk, may require further evaluation or treatment

Your doctor will explain your results clearly and recommend the appropriate next steps.

What Happens If Plaque or Narrowing Is Found?

If changes are detected, early management can help reduce your risk of stroke.

This may include:

  • Lifestyle changes (diet, exercise, smoking cessation)
  • Medications to control cholesterol, blood pressure, or blood sugar
  • Regular monitoring of your arteries
  • Additional tests for a more detailed assessment
  • In some cases, procedures to improve blood flow

The approach depends on how advanced the narrowing is and your overall health profile.

Is a Carotid Ultrasound Painful or Safe?

A carotid ultrasound is:

  • Completely painless
  • Non-invasive (no needles or injections)
  • Free from radiation exposure
  • Safe for repeated use if monitoring is needed

It is considered a very safe and low-risk test.

Who Should Consider a Carotid Ultrasound?

This test may be particularly useful if you:

  • Have cardiovascular risk factors such as high blood pressure, diabetes, or high cholesterol
  • Are a smoker or have a history of smoking
  • Have a family history of stroke or heart disease
  • Have experienced symptoms suggestive of reduced blood flow to the brain
  • Want to assess your stroke risk as part of preventive care

Frequently Asked Questions

No, the test is completely painless and does not involve any needles or injections.

No special preparation or fasting is usually required.

The scan typically takes about 15–30 minutes.

Your doctor will review the images and discuss your results with you, usually shortly after the test.

While the test itself does not prevent stroke, it helps detect risk early so that appropriate steps can be taken to reduce your chances of developing one.

Why Patients Choose Trident Heart Centre

Use of Contemporary Techniques

Dr Pinakin uses current, evidence-based methods to carefully evaluate and treat heart conditions, helping you feel confident in your care.

Holistic & Personal Care

Every patient is treated as an individual, with attention to your full health and lifestyle, not just the heart problem.

All-in-one Services

From assessment to treatment, screenings and procedures are conveniently coordinated in one place for a smoother, more reassuring experience.