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Main testing methods
Low-dose computed tomography (LDCT) scans are recommended once a year.
Recommended age for screening
This applies to individuals aged 50 to 80 with a smoking history of 20 pack-years or more, who are currently smoking, or who have quit smoking within the last 15 years (previously 55 years old, but this has been lowered).
Lung cancer screening
Criteria for discontinuing testing
If 15 years have passed since you quit smoking
If a health problem arises that severely limits the ability or willingness to undergo lung surgery, or significantly shortens life expectancy
In Japan
In Japan, annual X-ray examinations are recommended for men and women aged 40 and over. Sputum cytology may also be used in conjunction with X-rays for high-risk individuals.
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