Coronary CT Angiography in Turkey

Who Might Need Coronary CT Angiography?

Coronary CT angiography may be recommended for:

• Individuals with unexplained chest pain or discomfort
• Patients with an intermediate risk of coronary artery disease
• Those with inconclusive results from a stress test or ECG
• People with a family history of heart disease
• Patients requiring cardiovascular evaluation before surgery
• CCTA is not typically used in emergency settings such as acute heart attacks, but it can be highly effective for outpatient diagnostic evaluation.

How Is the Procedure Performed?

Prior to the scan, a small cannula is inserted into a vein in the arm ablet administration of contrast dye. In some cases, a beta-blocker may be given to lower the heart rate, ensuring clearer imaging.

The patient lies on a motorised ablet hat moves through the CT scanner. During the scan, the contrast dye is injected, and rapid X-ray images are taken. The scanning process usually lasts around 10 to 20 minutes, although preparation may take longer.

The procedure is entirely painless and non-invasive. You may be asked to briefly hold your breath during image capture to reduce movement artefacts.

How Does Coronary CT Angiography Differ from Conventional Coronary Angiography?

While both coronary CT angiography (CCTA) and conventional coronary angiography aim to assess the heart’s blood vessels, they differ significantly in terms of technique, invasiveness, and clinical use.

CCTA is a non-invasive diagnostic scan performed using a CT machine and intravenous contrast dye. It is often used in patients with low to moderate cardiovascular risk and provides detailed 3D images without the need for arterial catheterisation.

Conventional coronary angiography, on the other hand, is an invasive procedure involving the insertion of a catheter through an artery (usually in the wrist or groin) to directly inject contrast dye into the coronary arteries. It is typically used in high-risk patients or when therapeutic intervention (e.g., stent placement) may be necessary.

Below is a comparison table highlighting the key differences between Coronary CT Angiography and Conventional Coronary Angiography

Preparation Before Coronary CT Angiography

To ensure the best possible image quality and safety, the following preparation is typically advised:

• Do not eat or drink for 4–6 hours before the scan
• Avoid caffeine and smoking on the day of the test
• Inform your doctor of any allergies, particularly to iodine or contrast dye
• Follow your doctor’s guidance regarding regular medications
• Wear comfortable clothing and remove any metal objects or jewellery

If you have kidney problems or diabetes, you may need a blood test beforehand to check kidney function, due to the use of contrast dye.

Benefits of Coronary CT Angiography

• A non-invasive alternative to conventional coronary angiography
• Quick and highly accurate in detecting coronary artery disease
• Produces high-resolution, 3D images of the heart and vessels
• Helpful for early diagnosis and treatment planning
• Particularly effective in ruling out coronary artery disease

Limitations and Risks

Although CCTA is considered safe and reliable, it does carry some minor risks and limitations:

• Exposure to a small dose of ionising radiation
• Rare allergic reactions to the contrast dye
• Less suitable for patients with irregular heart rhythms or extensive arterial calcification
• Not appropriate for emergency diagnosis of acute coronary syndromes

Your doctor will determine whether CCTA is appropriate for you based on your medical history, symptoms, and individual risk factors.

After the Procedure

Most people can resume normal activities shortly after the scan. You are advised to drink plenty of water to help flush the contrast dye from your system. If you experience any unusual symptoms — such as itching, rash, dizziness, or shortness of breath — you should seek medical attention promptly.

The scan results are analysed by a radiologist or cardiologist, and a detailed report will be sent to your referring doctor. They will discuss the findings with you and advise on any next steps or further investigations if necessary.