What Is a Screening Lung CT?
Screening Lung CT uses low-dose X-ray pictures taken from multiple different angles around the body to create cross-sectional images that appear as “slices” of the lungs and surrounding structures. The examination can detect small lung cancers before they are visible on a regular chest X-ray, increasing treatment options and survival rates.
Based on results from the National Lung Screening Trial (NLST), new national guidelines recommend an annual Screening Lung CT for:
- Smokers aged 50 to 77 years who have smoked for 20 pack-years or more (pack-year smoking history is calculated by multiplying the number of years you have smoked by the number of packs you smoke per day).
- Ex-smokers aged 50 to 77 years who quit smoking less than 15 years ago with a smoking history of 20 pack-years or more.