CT imaging uses special low-dose x-ray equipment to create detailed 2D and 3D images of the body. The CT scan is painless, and takes images in ‘slices’, which give insight into the structure and workings of the area. A contrast medium – a harmless dye – is sometimes needed to make the images easier to read. The CT images are then used by radiologists to diagnose a range of conditions, or in other procedures. CT is considered to be very safe and painless. 

What to expect on the day of your scan?
When you arrive, please check in with reception. We’ll make sure all your details are correct. Depending on the type of CT scan you’re having, you may need to fill out one or two forms.

Before your scan, you may need to remove most of your clothing and all of your jewellery and then change into a gown – this makes things easier, and will be more comfortable. If your scan needs contrast, you’ll be given this as a liquid to drink or as an IV injection. Contrast medium is a substance that makes the image of the CT (or MRI) clearer. You’ll then lie on a comfortable table, which we’ll move to get you in the right position for your scan. Once you’re all set, the MIT will move into another room – you can talk to them at any time over the intercom. The bed slides in and out of the CT scan equipment, which is like a big doughnut. You’ll have to stay very still during your scan and may be asked to hold your breath.

If you’ve been given an iodinated contrast injection, you may notice a strange metallic taste in your mouth and a warm sensation through your body. Because this warm feeling concentrates in your groin and buttocks, it may feel like you’ve wet yourself. Rest assured, this isn’t the case, and the sensation will subside in a few minutes.

The scan time will vary depending on the type of examination required, but as a rule it will take around 30 minutes.