Lung health tools
Evaluate your lung health
A simple guide to understand whether it may be worth discussing low-dose CT for early lung cancer detection or to estimate the risk of a pulmonary nodule already found on CT.
This is educational guidance. It does not diagnose cancer and does not replace medical assessment.
Lung health tool
Find your next step
Answer a few simple questions. The result is calculated on your device and no personal data is stored.
Could a preventive CT help you?
This guide is for people who smoke or used to smoke and do not have symptoms. It helps you decide whether to ask a doctor about a low-dose CT, which uses little radiation to look for changes in the lungs before they cause problems.
What is a pack-year?
It expresses cumulative tobacco exposure: packs smoked per day multiplied by years of smoking.
Reference criteria: USPSTF ↗
What is the approximate risk of my nodule?
Enter the details from your CT report. If you do not know a detail, ask the medical team.
This estimate is for orientation; it does not replace the CT report or a doctor’s evaluation. Brock/PanCan model described by McWilliams et al., NEJM 2013. ↗
Early detection and pulmonary nodules are different questions
Early lung cancer detection is intended for people at increased risk who do not have warning symptoms. A nodule already detected on CT is assessed according to its size, type, location, borders, growth and the patient’s clinical context.
Warning symptoms: coughing up blood, unexplained weight loss, persistent chest pain, or significant new shortness of breath require diagnostic medical evaluation rather than a preventive screening pathway.