What is CT and how does it work?

A Computed Tomography or CT scan creates very clear two-dimensional images of the brain and other parts of your body that cannot be seen on regular X-rays. The images are produced by projecting small amounts of X-rays through the part of the body being examined and converting the information into images by using a special computer. For some CT scans, the radiologist injects a contrast medium or dye to highlight certain tissues for closer examination. This type of scan helps differentiate healthy and diseased tissue, making it possible to accurately diagnose many diseases in their early stages.

What happens during your CT scan?

• Before your scan, you will change into a gown and be asked to remove all metal and plastic items from the part of your body being examined.
• A member of our staff will walk you to the CT room, help you onto the table, and position you for the scan.
• A loose band may be placed around you to help you stay in the proper position.
• During the exam, you will feel the table move after each scan and hear a whirring noise or high-pitched beep.
• To get the most precise results, the technologist may ask you to hold your breath for a short time.
• Please lie as still as possible to avoid blurring the images.
• You will be able to communicate with the technologist at all times during your scan.
• The exam usually lasts 10 to 15 minutes.

What happens when the exam is complete?

• You may leave immediately after your CT scan.
• You should drink plenty of fluids, especially water, for the next 24 hours to help flush the contrast medium from your body.
• The radiologist will review your scans and send the results to your physician. If urgent findings are uncovered, the results will be called into your physician immediately.