CT coronary angiogram

    A Coronary CT Angiogram (also called a CT Coronary Angiogram, or CCTA) is a non-invasive test that uses advanced X-ray technology to create detailed images of your heart. The test is part of Mayo Clinic Healthcare’s offering of the highest standard of cardiology and heart healthcare.

    • Our cardiology consultants at Mayo Clinic Healthcare use the test to diagnose various heart conditions, including:

      The procedure can also test for other issues, such as:

      • Aneurysm
      • Pulmonary embolism
      • Traumatic injury
    • You may be referred if you have blocked arteries. The scan may also be used as part of pre-surgery preparation, such as before receiving a heart valve replacement or heart bypass surgery.

    • Both are diagnostic procedures that assess heart health, but they differ in their approach.

      The Coronary CT Angiogram is a non-invasive technique that uses computed tomography (CT) to create detailed images of your heart. In contrast, a traditional coronary angiogram requires the insertion of a catheter into an artery.

      While both procedures are valuable, the coronary CT angiogram is part of our state-of-the-art facilities, and one that’s particularly useful for early detection.

    • A coronary CT angiogram may not be suitable if:

      • You have had an allergic reaction to contrast dye.
      • You have a history of kidney issues.
      • You are diabetic.

      In these cases, a traditional angiography may be recommended. Be sure to tell your consultant if any of these apply.

    • Before or during the procedure, you may be prescribed:

      • Beta blockers, medications that slow the heart rate to produce clearer images.
      • Nitroglycerin, a medication that helps dilate coronary arteries.
      • Contrast dye, administered through an IV to highlight arteries for clearer images.

      In preparation for the scan, you will:

      • Avoid caffeine for 12 hours before the procedure.
      • Stop eating 4 hours before the procedure (you can still drink water).
      • Remove any metal objects to prevent interference with the scan.
    • The process typically follows these steps:

      1. A nurse will insert an IV line into your arm to administer contrast dye, and electrodes will be placed on your chest to record your heart rate.
      2. You will lie on a table that slides into the CT scanner, which looks like a short tunnel. You will be less enclosed than in a traditional MRI.
      3. You will be asked to stay still and hold your breath briefly. This prevents blurring of the image, which can make diagnosis difficult.
      4. Once enough pictures have been taken, the IV will be removed, and you will be helped off the exam table.
    • The scan can take as little as five seconds, but the procedure may take up to thirty minutes.

    • A coronary CT angiogram is non-invasive, meaning it doesn’t require sedation or recovery time.

      While the scan does involve some radiation, Mayo Clinic Healthcare uses the newest CT technology available, which keeps exposure to a minimum.

      If you’re on certain medications, the radiation may cause a reaction. Make sure to inform your consultant of which medications you’re taking.

      You will be monitored before and after the procedure to ensure your safety. 

    Recovery and aftercare

    You will be able to drive and return to daily activities immediately.

    Results and next steps

    Your results will be discussed by the Mayo Clinic Healthcare multidisciplinary team.

    By choosing us, you gain access to not just your consultant’s expertise, but also the collective knowledge of our 7,000 consultants across the U.S. and the UK. Your consultant will discuss your results and decide the best next step for you based on the results of your scan. 

    Private health insurance

    Mayo Clinic Healthcare works with all major private health insurance providers, including AXA PPP, Aviva, BUPA, Vitality Health and WPA. Self-pay arrangements are also available.

    Request an appointment

    If you have concerns about your cardiac health, or would like to inquire about receiving a CT coronary angiogram, our team is here to help. Request an appointment today.