イメージ山形県 山形市清住町2-3-51
JR山形駅西口より車で5分、山形交通バス十小前バス停より徒歩2分
A CT scan of the chest aimed at the early detection of lung cancer
This scan images the lungs using a lower radiation dose than a standard CT, and is used to detect small pulmonary nodules and early-stage lung cancer that may be missed on a chest X-ray. It is considered particularly useful for individuals at high risk of lung cancer, such as smokers.
Japan's organized lung cancer screening program uses chest X-ray (with sputum cytology when indicated) for adults aged 40 and over, once a year. A 2025 effectiveness-evaluation guideline found evidence supporting low-dose CT for heavy smokers (roughly ages 50–74); however, formal adoption into the national population-based screening program has not yet occurred, and low-dose CT is currently offered mainly as an optional (voluntary) examination.
Screening interval: Optional (voluntary) basis. For heavy smokers, once a year is the general guideline (effectiveness evaluated in the 2025 guidelines). Please consult your physician.