CT Scan
What is a CT scan?
A CT scan uses X-rays and computer processing to create detailed cross-sectional images of your body. Modern scanners can reconstruct images in multiple planes and create 3D views to help your doctor assess bones, organs and blood vessels with precision.
What can CT help diagnose?
CT is commonly used to investigate injuries, pain, infections, kidney stones, lung and abdominal conditions, vascular disease and to plan or guide some procedures. Your doctor will decide if CT is the most appropriate test for your situation.
How long does it take?
Preparation
Preparation varies by the area being scanned. Our team will advise you when you book, but in general:
- You will be asked to change into a gown
- Leave jewellery and valuables at home where possible.
- If you’re having an abdominal or chest CT, you may be asked to fast for a short period and/or drink oral contrast.
Please follow any instructions provided to ensure the best images.
What happens during the scan?
You’ll lie on a table that moves through a doughnut-shaped scanner. It’s open at both ends and doesn’t cover your whole body. You’ll need to keep still; for some scans, brief breath-holds are required. Our radiographer can see and speak with you throughout.
Contrast dye (iodine)
Some CT scans need an intravenous iodine contrast to highlight blood vessels and organs. You will feel a warm sensation through the body extending to the pelvis giving a false urinating sensation and a metallic taste. This should last for a few seconds, this is normal and settles quickly. Very rarely, allergic reactions can occur; we screen for risk factors and manage any reactions promptly. Please tell us if you have kidney problems, are diabetic, or have had a previous contrast reaction.
Is CT safe?
CT uses a small amount of ionising radiation. We follow the ALARA principle (As Low As Reasonably Achievable) and use modern dose-reduction techniques to keep exposure to a minimum, while ensuring clear diagnostic images. For most patients, the benefits of accurate diagnosis outweigh the small associated risks.
Pregnant or think you might be?
Please tell your doctor and inform our team before your appointment. Alternative tests may be recommended.
After your scan
What to bring?
- Your doctor’s referral
- Medicare card (if applicable)
- Any previous relevant imaging or reports
Bookings & enquiries
Many CT scans can be arranged promptly or performed on same day. Contact our friendly team to discuss preparation and appointment times.
This information is general and not a substitute for advice from your doctor.