Finding the right tests…
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Finding the right tests…
Sonography
DOPPLER CAROTIDS checks the arteries in your neck that supply blood to your brain, and it's the scan most often reached for when a doctor is weighing your stroke risk rather than confirming a narrowing already found. It's typically considered for people with several risk factors together, such as high blood pressure, high cholesterol, long-term smoking, or a close relative who had a stroke or heart disease early in life. It also gets ordered after a warning sign, like a brief episode of slurred speech, numbness, or vision loss that resolved on its own. Major screening bodies don't recommend this scan for everyone without symptoms or risk factors, since it's a targeted test rather than a routine one.
This scan checks the carotid arteries in your neck for narrowing or plaque buildup that could raise your risk of a stroke, using blood flow speed to size up how significant any narrowing is. Your doctor weighs the result alongside your blood pressure, cholesterol, and other risk factors rather than as a stand-alone stroke prediction.
A stroke can happen when blood flow to part of the brain is cut off, and one cause is a narrowed carotid artery in the neck throwing off a clot or blocking flow outright. DOPPLER CAROTIDS is built to catch that narrowing before it causes a first stroke, or to explain one that has already happened.
Doctors reach for this scan most often in two situations: someone with several stroke risk factors stacked together, like high blood pressure, high cholesterol, and smoking, or someone who has already had a warning sign such as a brief episode of weakness, slurred speech, or vision loss. A stroke that has fully happened also prompts this scan, to check whether a carotid narrowing was involved.
Major screening guidance bodies specifically recommend against checking every adult without symptoms or risk factors, because the downsides of finding and treating a narrowing that was never going to cause problems can outweigh the benefit in low-risk people. That's different from ordering the scan for someone whose risk profile or symptoms already point toward the carotid arteries specifically.
A normal result here doesn't rule out stroke risk from other causes, and your doctor reads it alongside your broader cardiovascular picture.
No. It's a targeted test for people with specific stroke risk factors or warning symptoms, not a routine screening test recommended for every adult without those factors.
Major screening guidance bodies recommend against checking everyone without symptoms or risk factors, because acting on a narrowing that was never going to cause a problem can carry more downside than benefit in low-risk people. It's ordered when your specific risk profile or symptoms point toward the carotid arteries.
A brief episode of one-sided weakness, slurred speech, sudden vision loss, or numbness that resolved on its own is a common trigger, since these can be warning signs from the carotid arteries. A carotid bruit, an abnormal sound heard with a stethoscope over your neck, is another.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
No. It means this particular pair of arteries looks clear, but stroke can result from other causes too, so your doctor reads this result alongside your overall cardiovascular risk factors.
No, it's a painless scan done with a probe and gel against your neck, with no needle or injection involved.
No. It uses sound waves, not X-rays, so there's no radiation exposure.
There's no single preparation required for every patient. Ask your doctor or the centre what they'd like you to do beforehand.
They check the same arteries with the same technique. This entry is commonly used for a broader stroke-risk evaluation, while CAROTID DOPPLER is often ordered to characterize a narrowing that's already suspected or previously found.