Low-Dose CT Lung Screening (ELCAP)

Annual low-dose CT chest examination following the ELCAP (Early Lung Cancer Action Program) protocol. ELCAP research demonstrates that annual CT can detect 85% of lung cancers at their earliest, most curable stage — with a 92% cure rate when surgery is performed promptly. Recommended for individuals with a smoking history of 10+ pack-years. Radiation exposure is approximately 1 mSv (well below annual natural background radiation). No contrast injection required. Prior medical consultation mandatory under German radiation protection regulations.

Institut für Bilddiagnostik's lung screening programme is grounded in the ELCAP (Early Lung Cancer Action Program) protocol, the methodology behind the international landmark cohort study that established the evidence base for low-dose CT lung cancer detection. ELCAP data showed that annual CT screening can identify 85% of lung cancers at Stage I — the stage at which surgical resection carries a 92% survival rate. By contrast, when lung cancer presents symptomatically without prior screening, 80 to 90% of patients die within five years of diagnosis. The low-dose protocol keeps radiation exposure to approximately 1 mSv per examination — roughly half the natural background radiation received in a year, and far below the dose of a standard diagnostic chest CT. No intravenous contrast is administered, eliminating venous access and the small risk of contrast reactions. The scan itself involves a brief breath-hold of around 10 seconds while the CT scanner rotates around the chest. Primary eligibility targets current or former smokers who have accumulated at least 10 pack-years of tobacco use — equivalent to one pack per day for ten years. Individuals with chronic cough, sputum production, or occupational exposure to carcinogens (asbestos, radon, diesel fumes) may also be considered candidates in consultation with the physician. The examination requires an individual medical consultation to establish clinical indication, as required under German radiation protection regulations. The radiologist reviews the scan for pulmonary nodules, emphysema, airway changes, and incidental findings in adjacent structures including the mediastinum, heart, and thoracic spine. Findings are reported with follow-up guidance consistent with current international guidelines (USPSTF, American Cancer Society, NCCN — all of which endorse annual LDCT screening for appropriate risk groups). Results are discussed with the patient, and any nodules requiring follow-up imaging or specialist referral are clearly flagged. Annual repeat is recommended for individuals who remain in the eligible risk category.