CT Scan
A CT scan, also called computerized tomography, is a type of X-ray exam that combines x-ray with powerful computers to create images of the inside of your body in cross section. The images are often compared to slices in a loaf of bread. The cross sectional scans show bones and soft tissue with greater clarity than regular x-rays. CT scans are used in examining injuries to the hands, feet and other skeletal structures because the final images will show the very small bones as well as surrounding tissues.
What to Expect
Before the exam
- You’ll be asked to remove your jewelry, hearing aids and eyeglasses. Objects with metal may affect the CT images.
- If a contrast material or dye is used in your exam, you may be asked not to eat or drink anything for several hours beforehand.
- You’ll be asked about medications, allergies, recent illnesses and your medical history as some conditions may increase the risk of an unusual adverse effect.
The technologist will operate the scanner and monitor your examination from a separate windowed room, but you’ll be in two-way communication with the technologist the entire time.
- The technologist begins by positioning you on the CT examination table so that the affected joint can be examined.
- If used, the contrast material will be injected through an IV or given orally.
- Next, the correct starting position will be set for the scans.
- The table will move through the tunnel very slowly as the scanning takes place.
- You will hear buzzing, clicking and whirring sounds as the CT scanner revolves around you.
The scan takes anywhere from five to 30 minutes
Your primary care or referring physician will receive a copy of the images and test report and will discuss the results with you.
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