Understanding CT Angiography for Heart Blockage at Butler. (08) 9544 3999

Author : crystal radiology | Published On : 22 Sep 2026

Heart health is something many people think about only when symptoms appear. However, coronary artery disease can develop gradually as plaque builds up inside the arteries that supply blood to the heart. These arteries can become narrowed or blocked, potentially affecting blood flow and increasing the risk of angina or a heart attack.

Modern medical imaging provides doctors with non-invasive ways to examine the coronary arteries. Get CT Angiography at Butler to learn how CT coronary angiography can provide detailed images of the blood vessels supplying your heart and help your doctor investigate possible coronary artery disease.

What Is CT Angiography for the Heart?

CT coronary angiography, also called coronary CT angiography (CCTA), is a specialised CT scan that produces detailed images of the coronary arteries.

A CT scanner captures multiple images while contrast material travels through the bloodstream. A computer then processes these images to create detailed views of the coronary arteries.

The scan may help doctors assess:

• The structure and appearance of the coronary arteries
• Areas of narrowing
• Plaque within the arteries
• Possible blockages
• The overall anatomy of the coronary vessels

Unlike conventional coronary angiography, CT coronary angiography is non-invasive and does not require a catheter to be passed through an artery to the heart.

Get CT Angiography at Butler when your doctor has recommended cardiac CT imaging to investigate your symptoms or assess the condition of your coronary arteries.

How Does a CT Angiogram Work?

Before the scan, your medical and referral information will be reviewed. Depending on your individual circumstances, your heart rate may also be checked because controlled heart movement can help produce clearer images.

During the examination:

1. You will lie on a CT scanning table.
2. ECG monitoring may be used to synchronise the scan with your heartbeat.
3. An intravenous line may be placed in your arm.
4. Contrast material may be injected to make the coronary arteries easier to see.
5. The CT scanner captures detailed images as the contrast moves through your coronary arteries.
6. You may be asked to hold your breath briefly while images are taken.

CT scans are generally quick, although preparation and monitoring can make the overall appointment longer than the actual image acquisition.

How Accurate Is CT Angiography for Detecting Blockages?

One of the important advantages of CT coronary angiography is its ability to provide detailed anatomical information about the coronary arteries.

A clear scan can provide useful information when significant coronary artery disease is being investigated. However, no imaging test is perfect, and results need to be interpreted alongside your symptoms, medical history and other test findings.

CT angiography may be particularly useful when your doctor needs to understand whether there is plaque or narrowing within the coronary arteries.

It is important to remember that seeing narrowing on an anatomical scan does not always tell doctors exactly how much the narrowing affects blood flow. Additional functional testing may sometimes be required.

When Might Your Doctor Recommend CT Angiography?

Your doctor may consider CT coronary angiography depending on your symptoms and individual cardiovascular risk.

It may be considered when investigating:

• Stable or unexplained chest discomfort
• Suspected coronary artery disease
• Abnormal or inconclusive results from other cardiac tests
• Symptoms that require further assessment of the coronary arteries
• Other situations where detailed coronary anatomy could assist diagnosis

Coronary artery disease can sometimes develop without obvious symptoms, which is why cardiovascular risk assessment and appropriate medical follow-up are important.

Get CT Angiography at Butler if your GP, cardiologist or other referring practitioner has recommended a CT examination of your coronary arteries.

Why Choose Butler Medical Imaging?

Cardiac imaging can feel unfamiliar, particularly when you are being investigated for possible heart disease. At Butler Medical Imaging, the focus is on providing patients with professional diagnostic imaging services in a supportive clinical environment.

If your doctor has referred you for a CT coronary angiogram, follow the preparation instructions provided by the imaging team and bring your referral and relevant medical information to your appointment.

Get CT Angiography at Butler and take the next step in investigating your coronary artery health with appropriate medical imaging.

Book Your CT Angiography at Butler

If your doctor has recommended this examination, Get CT Angiography at Butler and arrange your scan with Butler Medical Imaging.

Please ensure that you have your Medicare card and referral with you and pop into our location for your consultation. If you have any questions at all, please feel free to contact us at +61 8 9544 3999 as we are here to help.