A Low-dose CT lung cancer screening is a ct test of the chest. It shows early lung cancers in heavy smokers; reported with Lung-RADS. Typical effective dose about 1.5 mSv, similar to about 6 months of natural background radiation (about 3 mSv a year).
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
A Low-dose CT lung cancer screening is a ct test of the chest. It shows early lung cancers in heavy smokers; reported with Lung-RADS. Typical effective dose about 1.5 mSv, similar to about 6 months of natural background radiation (about 3 mSv a year). What it shows: Early lung cancers in heavy smokers; reported with Lung-RADS. generated by SI from cited sources · general information, not a diagnosis · consult a health professional
Early lung cancers in heavy smokers; reported with Lung-RADS.
Selected heavy smokers aged 50 and over.
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Typical effective dose about 1.5 mSv, similar to about 6 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
a few minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
CT
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does a lung cancer screening show?
Early lung cancers in heavy smokers; reported with Lung-RADS.
Why is a lung cancer screening done?
Selected heavy smokers aged 50 and over.
How do I prepare for a lung cancer screening?
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Does a lung cancer screening use radiation?
Typical effective dose about 1.5 mSv, similar to about 6 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
How long does a lung cancer screening take?
a few minutes
Why is Low-dose CT lung cancer screening done?
Selected heavy smokers aged 50 and over.
How do I prepare for Low-dose CT lung cancer screening?
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Is Low-dose CT lung cancer screening safe in pregnancy?
Typical effective dose about 1.5 mSv, similar to about 6 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.