Why Coronary CTA Is Changing the Way We Detect Heart Disease

What is a Coronary CT Angiography (CCTA)?

Muhammad Khan, MD: A Coronary CT Angiography, or CCTA, is a special CT scan that takes detailed pictures of the blood vessels that supply blood to your heart. The scan uses contrast dye to create detailed pictures of the coronary arteries (arteries of the heart).
The test helps your provider look for plaque buildup or narrowing in the arteries that may be causing your symptoms.
CCTA is a commonly used, non-invasive imaging test.

Why Did My Provider Order a CCTA?

Muhammad Khan, MD: Your provider may recommend a CCTA if you're experiencing symptoms that could be related to heart disease or if they need to see the course of your coronary arteries.
Common reasons for ordering a CCTA include:

• Chest pain
• Chest pressure or discomfort
• Shortness of breath with exertion
• Other symptoms that could be related to heart disease

While CCTA is often used in adults under age 65, the decision depends on your symptoms, medical history and individual risk factors. The information gathered from the scan can help guide treatment decisions and determine whether coronary artery disease may be present.

Why Wasn't I Sent for a Stress Test?

Muhammad Khan, MD: Different heart tests answer different questions.
A stress test shows how well blood flows to the heart muscle during stress. 
A CCTA allows your provider to see the heart arteries directly and look for plaque or blockages. 
Your provider will recommend the test that is most appropriate for your symptoms and medical history.

Is a CCTA Safe?

Muhammad Khan, MD: Yes. CCTA is a widely used and generally safe imaging test. The scan uses radiation, but modern CT technology is designed to keep radiation exposure as low as possible while still producing high-quality images.
The contrast dye used during the scan helps make the coronary arteries easier to see. Before your test, your care team will review your medical history and discuss any concerns about contrast dye, medications or kidney function.

What Should I Expect During the Test?

Muhammad Khan, MD: Most patients find the test straightforward and relatively quick.
During a CCTA:

• An IV will be placed in your arm.
• Contrast dye will be given through the IV.
• You may receive medication to slow your heart rate.
• You may be asked to hold your breath for a few seconds while images are taken.
• The scan itself usually takes only a few minutes.

After the test, a cardiac imaging specialist will review your images and send the results to your provider.

How Should I Prepare?

Muhammad Khan, MD: Your care team will provide specific instructions before your appointment, but most patients are asked to avoid caffeine before the test because it can affect heart rate. 
You may also receive instructions regarding:

• Eating and drinking before the test 
• Taking certain medications
• Arrival time and check-in procedures

Arriving early allows your care team to assess your heart rate and make any necessary preparations before the scan begins.

When Will I Get My Results?

Muhammad Khan, MD: After your scan, a cardiac imaging specialist will review the images and prepare a report for your provider. 
Your provider will discuss the results with you, explain what was found and recommend any next steps if additional testing, treatment, or preventive care is needed.

What Is the Most Important Thing Patients Should Know About CCTA?

Muhammad Khan, MD: One of the biggest advantages of CCTA is that it can help identify coronary artery disease earlier. The test doesn't just show whether an artery is significantly blocked, it can also reveal the presence, location and extent of plaque within the coronary arteries.
This information helps providers better understand your heart health, make informed treatment decisions and in some cases begin preventive measures before heart disease becomes more advanced. Improvements in CT technology, image quality, radiation reduction and plaque assessment continue to expand the role of CCTA in evaluating coronary artery disease.
 

Have Questions About Your Heart Health?

If you're experiencing chest pain, shortness of breath or other symptoms that may be related to heart disease, talk with your primary care provider. They can help determine whether a Coronary CT Angiography (CCTA) is right for you. Don't have one? Find a provider today.

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