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Diagnosing Carotid Artery Disease: Which Tests Might You Need?
Published: Sep 15, 2024
Accurate diagnosis of carotid artery disease is crucial for preventing strokes. Several tests can help doctors assess the health of your carotid arteries.
Carotid Duplex Ultrasound
This non-invasive test uses sound waves to create images of your carotid arteries. It's usually the first test performed and can show how much your arteries are narrowed. The test is painless and takes about 30 minutes.
CT Angiography (CTA)
CTA uses X-rays and computer processing to create detailed images of your carotid arteries. A contrast dye is injected into your arm to make the arteries more visible. This test can provide more detailed information than ultrasound.
Magnetic Resonance Angiography (MRA)
MRA uses powerful magnets and radio waves to create detailed images of your carotid arteries. It doesn't use radiation and can show both the structure of your arteries and blood flow. Some people may need an injection of contrast dye.
Cerebral Angiography
This invasive test involves inserting a catheter into an artery and injecting contrast dye. It provides the most detailed images but carries more risks than other tests. It's usually only done if other tests are inconclusive or more information is needed.
Frequently Asked Questions
Most are painless; angiography may cause brief discomfort.
From 30 minutes for ultrasound to several hours for angiography.
Possibly, depending on your specific situation.
Rarely; tell your doctor about any allergies.
Your doctor will advise based on your risk factors.
Knowledge is Power
These diagnostic tests provide valuable information to guide treatment decisions and prevent strokes.
References
- Brott TG, et al. Stroke. 2011;42(1):e464-e540.
- Ricotta JJ, et al. J Vasc Surg. 2011;54(3):e1-e31.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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