CT Coronary Angiogram in London
In short: A CT coronary angiogram (CTCA) is a non-invasive scan that uses a CT scanner and contrast dye injected into an arm vein to create 3D images of the arteries supplying the heart. It shows narrowing, blockages and calcium build-up without a catheter. The scan takes about 10–15 minutes and you go home the same day.
Medically reviewed by Dr Georgios Karagiannis MD PhD FRCP, Consultant Cardiologist · Last reviewed:
Taking care of your heart health is essential. A computerised tomography (CT) coronary angiogram offers a fast and accurate way to assess your heart’s condition and detect early signs of disease.
At Expert Cardiologist, we offer a thorough explanation of CT coronary angiogram results, so you can be fully informed about what your heart health looks like. Throughout your journey, you’ll receive expert care from Dr Georgios Karagiannis, a leading London cardiologist.
What is a CT coronary angiogram?
A CT coronary angiogram is a non-invasive heart scan using CT imaging and a contrast dye to produce detailed images of your coronary arteries (the vessels that supply blood to your heart).
A CT coronary angiogram is a less invasive alternative to standard coronary angiograms. A CT coronary angiogram only requires a simple injection of contrast dye into your veins, making the process of examining your arteries for narrowing, blockages or signs of coronary artery disease that much easier.
At Expert Cardiologist, we’ll thoroughly discuss the results of your scan so you can fully understand your heart health.
What does a coronary angiogram show?
A CT coronary angiogram provides clear, three-dimensional images that can identify:
- Narrowed or blocked coronary arteries
- Early signs of coronary artery disease
- Congenital heart defects (a heart condition you’re born with)
- Atherosclerosis (a build-up of fatty substances like cholesterol in your arteries)
- Aneurysms (a ballooning of the wall in a blood vessel) or abnormalities in the artery walls
- Coronary artery disease
Your cardiologist may recommend a CT coronary angiogram if you experience symptoms such as chest pain or breathlessness, or if you have a family history of heart disease. They may also advise other cardiac tests if further investigations are needed.
If your results confirm a condition like these, Dr Karagiannis will provide you with further advice and support. Expert Cardiologist offers treatments for aortic aneurysms, arrhythmias and coronary artery disease.
How is a CT coronary angiogram performed?
A radiographer and radiologist carry out the scan in the CT department. A small cannula is placed in a vein in your arm, and ECG stickers on your chest monitor your heart rate. If your heart is beating fast, you may be given a beta-blocker tablet or injection to slow it, and a spray of GTN under the tongue to widen the arteries.
You lie on the scanner table and hold your breath for a few seconds while the contrast dye is injected and the images are taken. The dye can cause a brief warm feeling.
There is no catheter, incision or sedation, and you can usually eat, drive and return to normal activities straight afterwards.
Preparing for your scan: follow the instructions the hospital sends you. Tell the team about kidney problems, diabetes medication (especially metformin), asthma, or any allergy to contrast dye.
The scan itself takes only a few seconds, and you are usually in the department for 30–60 minutes, including preparation. You can go home straight afterwards.
CT coronary angiogram results
Dr Karagiannis will carefully analyse your scan so we can thoroughly discuss your results with you. You’ll receive a complete explanation of the findings and a personalised treatment or prevention plan, including lifestyle advice, further tests or medication if necessary.
Sometimes, we may arrange a follow-up appointment to discuss any further recommendations or offer additional support.
How much does a CT coronary angiogram cost?
At Expert Cardiologist, we price our initial consultations at £250, with any follow-up appointments costing £200.
During your consultation, we will discuss your health concerns and confirm a coronary angiogram if we think you would benefit from one.
You can find out more about our fees.
Frequently asked questions
How much does a CT coronary angiogram cost in the UK?
A private CT coronary angiogram is charged separately from the consultation, and you will be given the price before it is booked. A consultation with Dr Karagiannis (£250) comes first to make sure the test is right for you. Most private medical insurers cover it with pre-authorisation.
What is the difference between a CT coronary angiogram and a standard angiogram?
A CT coronary angiogram is a scan with dye injected into an arm vein, so it is quick, non-invasive and needs no recovery time. An invasive coronary angiogram passes a thin catheter from the wrist or groin to the heart. It is used when treatment such as a stent may be needed at the same time.
Is a CT coronary angiogram safe?
It is a very safe test. The main considerations are a small radiation dose (modern scanners keep this low), a small risk of reaction to the contrast dye, and the dye’s effect on kidney function in people with kidney disease. These are checked before the scan.
How long does a CT coronary angiogram take?
The scan itself takes only a few seconds, and you are usually in the department for 30–60 minutes, including preparation. You can go home straight afterwards.
Who should have a CT coronary angiogram?
It is recommended for people with chest pain that could be angina, and is the first-line test for this in UK (NICE) guidance. It can also help people with a strong family history or several risk factors who want a clear picture of their coronary arteries.
Book your coronary angiogram today
Early detection can save lives. A CT coronary angiogram can reveal the cause of your symptoms or assess your heart health before problems develop.
At Expert Cardiologist, we offer expert interpretation and supportive care. Dr Georgios Karagiannis will guide you through each stage, so you can be confident in your decision to have a CT coronary angiogram
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