A CT scan uses an x-ray machine to create a three-dimensional picture of the inside of the body. A computer then combines these images into a detailed view that shows any abnormalities or tumors. Sometimes, the doctor will inject a special dye called a contrast medium into a patient’s vein to create more detail in the images. At other times, a patient may be asked to swallow a liquid contrast material. Areas that are commonly scanned include the head, neck, chest, abdomen, pelvis, or limbs. One risk of this test is radiation exposure, especially for children. However, the potential benefits of having a CT scan usually outweigh these risks. If you are receiving multiple CT scans and x-rays, talk with your doctor about using another type of test that involves less exposure to radiation.
For more information on CT Scans please visit the Cancer.Net site by clicking here.