|Computed Tomography (CT) scan uses X-rays to make detailed pictures of structures inside of the body. During the test, you will lie on a table that is attached to the CT scanner, which is a large doughnut-shaped machine. The CT scanner sends X-rays through the body area being studied. A CT scan can be used to study all parts of your body, such as the chest, abdomen, pelvis, or an arm or leg. It can take pictures of body organs, such as the brain, liver, pancreas, intestines, kidneys, bladder, adrenal glands, lungs, and heart. It also can study blood vessels, bones, and the spinal cord.
Low-dose Spiral CT Scan of Lung is now the recommended diagnostic screening tool for early detection of lung cancer. The National Lung Screening Trial has found 20% fewer lung cancer deaths in high risk participant screened with low dose spiral CT scan of the chest versus a standard chest x-ray. This latest CT scanning technology detects lung nodules as small as 2 mm, with lower exposure levels than a traditional CT scan.