Heart disease continues to be one of the leading health challenges worldwide, and early diagnosis plays a vital role in preventing complications. Advances in medical imaging have made it possible to detect cardiovascular issues more accurately and non-invasively. One such advancement is the CT Angiogram, a widely used diagnostic test to evaluate blood vessels and heart health.

In this blog, we will explain what a CT Angiogram is, when it is recommended, how the procedure works, and what patients can expect. We will also highlight the role of expert cardiologists like Dr. Rohit Kumar in guiding patients through the process for accurate diagnosis and timely treatment.

What is a CT Angiogram?

A CT Angiogram (Computed Tomography Angiography or CTA) is a specialised imaging test that combines the use of a CT scanner with a contrast dye to produce detailed images of blood vessels and tissues inside the body.

Unlike a traditional angiogram, which involves inserting a catheter into the blood vessel, a CT Angiogram is minimally invasive. It provides high-resolution, 3D images of arteries and veins, making it easier for doctors to detect blockages, narrowing, or other abnormalities.

Why is a CT Angiogram Done?

A CT Angiogram is recommended for several reasons. It allows cardiologists and other specialists to:

• Detect Coronary Artery Disease (CAD): Identify narrowing or blockages in the arteries that supply blood to the heart.
• Assess Chest Pain: Rule out or confirm if chest pain is related to heart problems.
• Evaluate Aneurysms: Detect bulges or weaknesses in blood vessel walls.
• Check for Pulmonary Embolism: Identify blood clots in the lungs.
• Examine Brain and Neck Vessels: Diagnose conditions like stroke or carotid artery disease.
• Plan Surgery or Interventions: Provide detailed maps of blood vessels before procedures such as stent placement or bypass surgery.

How to Prepare for a CT Angiogram

Preparation is usually simple but important for accurate results. Your doctor may advise:

• Fasting for a few hours before the scan.
• Avoiding caffeine or smoking as they may affect heart rate.
• Checking kidney function since contrast dye is filtered through the kidneys.
• Informing your doctor about allergies, especially to iodine or contrast material.
• Adjusting medications such as diabetes drugs or blood thinners if required.

Your cardiologist will give you detailed instructions tailored to your health condition.

The CT Angiogram Procedure

Here’s what typically happens during a CT Angiogram:

1. Positioning: You will lie on a motorised table that slides into the CT scanner.
2. Electrode Placement: Small patches may be attached to your chest to monitor your heart rate.
3. Contrast Dye Injection: A contrast dye will be injected into a vein, usually in your arm, to highlight the blood vessels.
4. Image Capture: As the dye flows through your blood vessels, the scanner takes multiple images in quick succession. You may be asked to hold your breath briefly.
5. Completion: The procedure usually takes 15–30 minutes. Afterward, you can resume normal activities unless instructed otherwise.

What Does a CT Angiogram Show?

The test provides clear images of blood vessels, helping doctors identify:

• Areas of narrowing or blockages
• Plaque buildup inside arteries
• Blood clots
• Aneurysms or malformations
• Signs of reduced blood flow to organs

These images give cardiologists vital information to diagnose conditions early and plan treatment effectively.

Advantages of a CT Angiogram

• Non-invasive: No need for catheter insertion like in conventional angiograms.
• Quick and accurate: Provides high-quality images within minutes.
• Comprehensive: Can assess arteries in the heart, brain, lungs, kidneys, and legs.
• Early detection: Identifies issues before they become life-threatening.

Risks and Considerations

While generally safe, CT Angiograms may carry some risks:

• Allergic reaction to contrast dye (rare).
• Kidney stress due to dye in patients with kidney problems.
• Radiation exposure, though at controlled and safe levels.

Your cardiologist will weigh these risks against the benefits before recommending the test.

After the Test: What to Expect

• Drink plenty of fluids to help flush the contrast dye from your system.
• You can usually return to normal activities immediately.
• Results are typically available within a day or two, and your cardiologist will explain the findings and next steps.

Alternatives to a CT Angiogram

Depending on your condition, your doctor may recommend:

• Traditional Angiography (catheter-based)
• MRI Angiography (using magnetic fields instead of radiation)
• Stress Test (to evaluate heart performance under exercise)
• Echocardiography (ultrasound of the heart)

Frequently Asked Questions

Is a CT Angiogram painful?

No, the test itself is painless. You may feel a brief warm sensation when the contrast dye is injected.

How long does the test take?

The scan usually takes 15–30 minutes, though preparation may add extra time.

Is it safe for everyone?

While generally safe, it may not be suitable for people with severe kidney disease, iodine allergies, or pregnant women.

How accurate is a CT Angiogram?

It is highly accurate in detecting coronary artery disease and other vascular conditions.

Why Consult Dr. Rohit Kumar

When it comes to heart health, timely diagnosis and expert care make all the difference. Dr. Rohit Kumar, Cardiologist, brings extensive experience in diagnosing and treating complex heart and vascular conditions. He is skilled in advanced cardiac imaging, including CT Angiograms, and ensures patients receive personalised guidance based on their medical needs.

With his patient-centric approach and expertise in preventive as well as interventional cardiology, Dr. Rohit Kumar helps patients take control of their heart health and live healthier lives.

Take the Next Step for Your Heart Health

If you are experiencing chest pain, shortness of breath, or have risk factors such as diabetes, hypertension, or a family history of heart disease, a CT Angiogram may be the right step toward early detection and treatment.

Book your consultation with Dr. Rohit Kumar, Cardiologist, today and take a proactive step towards safeguarding your heart health.