Cardiac CT (computed tomography) scans help identify blocked arteries, structural heart issues, and signs of coronary artery disease. This noninvasive test captures detailed images of your heart and blood vessels—helping to identify potential issues and guide next steps.
At Westchester Medical Center, the flagship of the Westchester Medical Center Health Network, we provide advanced cardiac CT scans. Our team includes cardiovascular imaging specialists who interpret results quickly and collaborate with your care team to provide solutions that meet your needs and goals.
What Is a Cardiac CT Scan?
A cardiac CT scan, also called coronary CT angiography, uses X-ray and computer technology to create detailed images of the heart. It can show blockages, plaque buildup, or abnormal anatomy in the coronary arteries or heart chambers.
Providers often order cardiac CT scans for patients with chest pain, suspected coronary artery disease, or abnormal stress test results. This scan may also evaluate heart function, detect congenital defects, or support procedure planning, such as valve repair or ablation.
What to Know About Your Cardiac CT Scan
Here’s how to prepare and what to expect before, during, and after your cardiac CT scan.
How to Prepare
- Do not eat or drink for at least four hours before the test.
- Avoid caffeine and tobacco for 12 hours before your scan.
- Wear comfortable clothing with no metal; you may be asked to change into a gown.
- Your provider will give instructions about medications, especially beta blockers or contrast agents.
What to Expect During the Cardiac CT Scan
A cardiac CT scan is performed in a dedicated imaging suite by one of our trained technologists and interpreted by our cardiac imaging specialists. The entire visit may last 30 to 60 minutes, including preparation time. The scan itself is painless and takes about 10 to 15 minutes:
- You will lie on a table that slides into a doughnut-shaped scanner.
- Electrodes will be placed on your chest to monitor your heartbeat.
- A contrast dye (a special liquid that helps highlight your blood vessels on the scan) may be injected into your vein to highlight blood vessels.
What to Expect Afterwards
Most patients can return to normal activities right after the scan. It is generally recommended to drink plenty of water to help flush the contrast dye from your system.
Your doctor will discuss the results with you and whether any follow-up care or treatment is needed. If abnormalities are found, you may be referred to one of our cardiologists or vascular specialists here at WMCHealth.

