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A CT coronary angiogram (CTCA) shows the arteries supplying the heart. Learn how to prepare, including caffeine and heart-rate medication, and how strict Medicare criteria apply.
Also called: CTCA, heart CT, coronary CT, cardiac CT angiogram, CT heart scan
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27 clinics offer bulk billing for CT scan — eligibility varies
Where to get a CT coronary angiogram
27 clinics across Melbourne and Victoria on Radly list CT coronary angiogram among their services.
Clinics for a CT coronary angiogram on Radly
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What is a CT coronary angiogram?
A CT coronary angiogram, or CTCA, uses a fast CT scanner and contrast to show the coronary arteries — the blood vessels that supply the heart muscle. It can show narrowing or plaque without the need for a catheter.
Clear pictures need a slow, steady heart rate, so you may be given medication by mouth or through a cannula to slow your heart, and a spray under the tongue to widen the arteries. ECG pads are placed on your chest and you'll hold your breath for a few seconds while contrast is injected.
Why your doctor might request a CT coronary angiogram
- Chest pain where your doctor wants to check the coronary arteries
- An unclear or borderline stress test result
- Assessing coronary artery bypass grafts
- Unusual coronary artery anatomy
CT coronary angiogram: preparation, referral & Medicare
Preparing for your CT coronary angiogram
- Avoid caffeine (coffee, tea, energy drinks, cola, chocolate) for at least 12–24 hours — follow the clinic's instructions
- You may be asked to fast for a couple of hours
- Tell the clinic about asthma, heart medications, erectile dysfunction medication, kidney problems and contrast allergies
- Arrange for someone to take you home if you're given medication that may make you light-headed
- Bring your medication list
How long it takes: About 1–2 hours at the clinic, including preparation; the scan itself is quick
Referral, Medicare & bulk billing
Medicare criteria for CT coronary angiograms are strict. A rebate generally applies only when specific clinical criteria are met, and some indications require a specialist (cardiologist) referral. Scans outside the criteria are private. The clinic will confirm whether your referral is Medicare-eligible. Booking through Radly sends a request, and the clinic confirms the time with you.
How it works
Get your referral
Most scans need a referral from your GP, specialist, or other health practitioner.
Compare clinics
Find clinics near you for your CT coronary angiogram and compare bulk billing, reviews, and location.
Send your request
Share your preferred timing and send the clinic your details and referral when available.
Clinic confirms
The clinic reviews your request and confirms your appointment and any preparation needed.
If the clinic hasn’t acknowledged your request after 24 hours, Radly will follow up. We check in by SMS during daytime hours where SMS is available and you haven’t opted out. Reply N if you haven’t been contacted and our team will follow up. Acknowledgment does not mean an appointment is booked.
CT coronary angiogram FAQs
Can I drink coffee before a CTCA?
No. Caffeine raises your heart rate and can blur the images. Avoid it for 12–24 hours beforehand, as instructed by the clinic.
Is a CTCA covered by Medicare?
Only when strict clinical criteria are met, and sometimes only with a cardiologist's referral. The clinic will confirm.
What's the difference between a CTCA and a calcium score?
A calcium score is a short, non-contrast scan that measures calcium in the arteries. A CTCA uses contrast to show the arteries themselves and any narrowing.
How do I book a CT coronary angiogram online?
Choose a clinic on Radly, select CT Scan as your scan, add your preferred timing and attach your referral, then send your booking request. The clinic contacts you to confirm the appointment and any preparation.
How soon can I get a CT coronary angiogram?
Appointments for CT scan are usually 1–4 days, depending on the clinic and the exam. You can send a request on Radly at any time, and the clinic replies with its next available time.
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