What Is CT?
Computed Tomography ('CT' or 'CAT' scan) can look inside your body by creating multiple cross-sectional images. The images are created using special X-Ray equipment that applies computer processing to synthesize the images into a cross-sectional view of body tissues and organs. Imagine a loaf of bread and examining each 'slice' separately.
Common Uses of CT
CT can be used for cancer detection and can even determine the size and shape of a tumor, where it’s located in the body, and whether the tumor is solid or hollow. Additionally, CT exams can be used to guide biopsy needle insertion and for radiation treatment and planning. In addition to cancer detection, CT is commonly used for evaluation of post-traumatic injuries as well as for assessment of patients with suspected aneurysm or stroke.
How Does CT Work?
You will be asked to lie down on the CT scanner’s movable table. The table is passed through a large donut-shaped ring, as the scanner begins to take pictures of your body. These are the images that will be reconstructed by the computer into a cross-sectional view. In some cases, the use of a contrast material may be needed to enhance the image. The contrast material may be orally or intravenously administered, depending on the particular type of CT study being performed.