CT-Scan

The CT scan (Computerized Tomography) is a form of x-ray that creates an image of the inside of the body. Unlike the chest x-ray, which is a broad x-ray beam sent over a large area, the CT-scan is a thin, pencil-like x-ray beam directed over a small part of the body. The scanner itself has an arm that directs the thin x-rays through the body as it rotates around the patient. The scanner's computer analyzes the data to build a view of the tissues and organs of the body.

Frequently, a contrast dye is injected into the vein to enhance certain regions of the liver. In addition, you may also be asked to drink a fluid that will help to examine the organs in the abdomen. Different dyes and scanning techniques will yield a wealth of information about the condition of the liver.

Results from CT scans may reveal tumors and aid in determining the number and location. They can also detect organ disorders or abnormal structures, blocked ducts, and abnormal tissues.

CT scans are usually scheduled at a clinic on an outpatient basis. The patient lies on a table and must remain very still for the entire process. The CT scan may take as long as an hour.

Below is a CT scan of a patient with a liver tumor. The liver is located along the left half of the image and is light gray in color. The white tubular structures are the normal liver blood vessels. The liver tumor is dark and located on the edge of the liver and extends toward a blood vessel.