With CT you can differentiate many more things than with a normal X-ray. A CT image is created by using an X-ray beam, which is sent through the body from different angles, and by using a complicated mathematical process the computer of the CT is able to produce an image.  This allows cross-sectional images of the body without cutting it open.  The CT is used to view all body structures but especially soft tissue such as body organs (heart, lungs, liver etc.).

 

What to expect?

Please come to your appointment dressed in comfortable, casual clothing. For some examinations you will be asked to change into a gown. It may be necessary to remove metallic objects such as jewellery, dentures, hearing aids etc.

Your radiographer will position you on the bed. The radiographer will operate the CT scanner from an adjoining room but is in contact with you via an intercom and, when out of the scanning room, will be observing you the whole time through a large window.

The scanning couch will move during the scan and you will be asked to remain very still during the scanning process.

 

Some procedures will require Contrast Medium.  Contrast medium is a substance that makes the image of the CT or MRI clearer. Contrast medium can be given by mouth, rectally, or by injection into the bloodstream. We will tell you about this when you make your appointment.

The scan time will vary depending on the type of examination required, but as a rule it will take around 20-40 minutes.

 

Preparing for your scan

As a general rule you should not eat or drink anything three hours before your appointment. However you should continue to take prescribed medications.

Diabetic patients will be advised when making their appointment whether or not to delay their medication for the scan.

Please bring any previous x-rays.

 

Your results

After the examination and before you leave, the radiographer and radiologist will check all the pictures obtained during the scan. The radiologist will review your scans and send your films and report to your doctor.

 

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