CT (computed tomography) scan
A Computed Tomography (CT) scan is a special type of x-ray used to produce digital cross-section images of any part of your body. In order to obtain the images, the CT scanner moves around your body while you lie flat. A contrast dye may also be used in some instances depending on the reason for your scan.
- Produce detailed, cross-sectional images
- Diagnose many different types of cancer
- Monitor the progression of certain diseases
- Help doctors plan surgeries
- Determine the severity of an injury
- Diagnose problems with the blood vessels
- Evaluate the severity of heart conditions
- Diagnose problems with the digestive system
- Diagnose and evaluate conditions of the chest
- Guide biopsies or other procedures
Preparation
Generally, there is no preparation required for a CT scan.
Abdomen and pelvic scans -Do not eat or drink any fluid that is not considered clear for four hours prior to your appointment.
In some instances, you may be asked to change into an examination gown to ensure that your clothing does not affect the quality of the images. You may also be asked to remove items such as eyeglasses, jewellery and any other metal objects.
Duration
Depending on the part of the body that is being scanned (and whether a contrast dye is necessary), a CT scan may generally take around 10-15 minutes.