CT Scan

CT scan or Computer Aided Tomography (sometimes called a CAT Scan) is a painless noninvasive medical test that helps physicians diagnose and treat medical conditions. This type of imaging combines the use of x-ray with the computer technology to produce images that are significantly more detailed than a regular x-ray.

The scanner takes pictures of the inside of the body and joins them together in cross sectional views with the aid of a computer. The specialized scanner operated by a skilled CT technician, and the expert interpretation of a radiologist combine together to diagnose diseases such as cancer, cardiovascular disease, infectious disease, trauma, and musculoskeletal disorders. The images from this study can be viewed on a computer monitor, printed on film or CD.

Wear comfortable clothes to your appointment. You may be given a gown to change into for the procedure. Metal objects such as eyeglasses or earrings and hearing aids should be taken off before the scan begins.

You should always inform your technologist of any medication, allergies, recent sickness or history of kidney or thyroid problems before the scan begins. It is also important to let them know if you are breastfeeding, pregnant or of any possibility that you may be pregnant. If you are over 65 or have a history of kidney problems certain lab tests must be taken before the exam is started.

You may have been asked to prepare for the exam by avoiding food and drink for several hours prior. This may especially be the case if you have been given an oral contrast to drink. If you receive an IV contrast you will receive a small injection that is equal to a pin prick to administer the IV contrast.

The scanner looks like a large donut with a table in front that you will lie upon. This table will be pulled through the hole in the scanner.

The technologist will step out of the room to acquire the images but will be able to see and hear you. The scanner will start and you may hear a slight whirling sound of machinery as the table moves though the hole in the CT scanner to take the pictures.

When you have completed the scan the technician will help you up from the table. You may return to your normal activities.