Computed Tomography (CT)
What is a CT Scan?
Computed Tomography (CT) uses x-ray imaging to enable detailed cross sectional images of the body to be taken. The scan can be digitally reconstructed to display anatomical information in various angles.
A CT scanner looks like a doughnut (the technical word for it is a gantry), with a flat table passing through the middle. Patients lie on the table and this slowly moves through the gantry as the scan is performed.
Our CT scanner utilises integrated dose-reduction solutions to ensure the radiation exposure to patients is kept to a minimum. If you have any concerns about radiation, we recommend reading our patient information brochure on radiation dose.
What type of CT scanner do we have at Repat Radiology?
Repat Radiology has a Toshiba Aquilion One - Vision Edition, this scanner was installed in July 2015. We offer CT scans of all body areas including Coronary Artery Calcium Scoring, Virtual Colonoscopy and image-guided interventional procedures (eg. facet joint injections under CT guidance).
What to expect if you are having a CT Scan?
The radiographer will confirm your details and explain the examination. You will then enter the CT room and the radiographer will ask you to lie on the table. The table then moves through the doughnut shaped gantry that houses the x-ray tube and detectors which takes the images.
During the scan you will hear the movement of the x-ray tube and detectors as they rotate. You will be asked to keep very still and you may be asked to hold your breath for a few seconds.
Some CT examinations require an intravenous injection of contrast media. Contrast helps to show different blood flow characteristics of organs and tissues, and is a very important part of the CT examination.
Please let the radiography staff know if you are:
- Allergic to seafood / shellfish
- Have had a previous reaction to contrast media
- Taking any Type 2 Diabetes medication
How long does a CT Scan take?
A CT examination can take from 5 – 20 minutes to complete depending on the examination requested.
For further information regarding CT examinations please refer to patient information below.