Preventive screening tests are designed to detect disease in otherwise healthy people who exhibit none of the outward symptoms of disease. This is important, because by the time a disease has progressed to the point where there are symptoms, it can be far more difficult to treat.
Our CT Lung Screen is a more sensitive test than X-ray, and can detect smaller tumors developing in the lungs. A major study of heavy smokers, known as the National Lung Screening Trial (NLST), found that a lung CT screening lowered the risk of dying from lung cancer. The results suggest that smokers and former smokers can benefit from this test.