What is CT Coronary Angiogram (CTA or CCTA)?
CT (Computerised Tomography) Coronary Angiogram is a scanning technique that uses a high-speed CT scanner to capture images of the heart’s coronary arteries. CTA is effective in diagnosing coronary artery disease, one of the most common cardiovascular diseases.
What Happens During My CT Coronary Angiogram?
You will lie on the table, which moves in and out of the scanner. If required, electrodes will be placed on your chest to monitor your heart rate. Once you move into the scanner, you will be asked to hold your breath for a few seconds while the images are being taken. This process will be repeated a few times, taking multiple X-rays or 3D images of the heart.
Before the procedure, you might be given a beta-blocker to lower your heart rate, as a lower heart rate helps produce clearer images. The actual procedure can take anywhere between 15-30 minutes. It is a completely painless procedure, and our professional will guide you through the entire process and help you complete it without any worries.
Are There Any Risks Associated with CT Coronary Angiogram?
CT coronary angiogram is a safe and non-invasive procedure that involves no risks when administered by professionals. But here are a few considerations –
- As CTA uses X-rays, exposing you to a small amount of ionising radiation, it is not recommended for pregnant women. But certain cases might necessitate it.
- In some cases, the iodine-based contrast injection can cause mild reactions like nausea, itching, or rash and the beta-blocker can cause fatigue or dizziness. But it is only temporary.
- If you have diabetes or a pre-existing kidney disease, the dye might negatively impact your kidney. But you can drink plenty of water after the procedure and avoid such repercussions.
In short, pregnant women and people with several kidney issues or severe iodine contrast allergies should avoid taking this test. A medical prescription from a licensed doctor is a prerequisite for this test.
What are the Benefits of CTA?
- Unlike Traditional Angiography, CTA is both non-invasive and poses little to no complications.
- It produces 3D images and effectively detects blockages, narrowing, and plaque buildup.
- The test can help you determine if you are at risk of heart disease or heart attack. It also allows early detection of coronary artery diseases.
- If you have a history of heart disease in your family, it can help detect any potential risks, even if you are asymptomatic.
What is the Preparatory Routine for a CT Coronary Angiogram?
Here’s the preparatory procedure explained –
- You will have to fast 4-6 hours before the scan.
- Avoid smoking or drinking coffee on the day of the scan, as both can impact your heart rate.
- Your doctor might recommend you pause certain medications before the test.
- The CT coronary angiogram procedure will begin by administering an IV contrast injection (iodine-based) to ensure the visibility of your coronary arteries during the scan.
- You will be given a beta-blocker if your heart rate is too high.
- In some cases, you will be given nitroglycerin to widen your coronary arteries for clearer imaging.
World-Class CT Scanner for Accurate Results
At Carescan, we understand how crucial accurate results are in diagnosing your condition and promptly ensuring the right treatment begins. That’s why we undertake all our CT coronary angiograms using state-of-the-art scanners, proven to produce high-resolution images. Our devices use 45% less radiation and produce 4 times more accurate results.
Irrespective of your age or weight, you can get the scan done comfortably with us. All our CT coronary angiograms are conducted by expert professionals to ensure a seamless and worryless experience.