What is the purpose of the CT scan?
CT scans look at the whole body and are used as a means of screening for early signs of illness in people who have no symptoms or disease risk factors. The benefit is that diseases such as cancer can be treated more successfully if they are detected in their early stages. They are most useful in the examination of specific target organs in the body using a narrow beam of x-rays. It is also used to measure the size and precise location of tumors; to elevate the extent of cancer spread, and as an aid to guiding biopsies and radiation treatments.
