Lung cancer is the most common malignant tumour in men and the second most frequent in women, after breast cancer. Overall it accounts for 13% of all malignant cancer cases.
Thanks to the various oncologic therapies, survival at 5 years after diagnosis has improved in all European countries from 8% to 13%, but is still too low.
This encourages doctors to look for new possibilities of early detection of lung cancer, i.e. for new effective secondary prevention tools (primary prevention is pursued by abolishing the habit of smoking and eliminating environmental carcinogens).
To this end numerous trials have been carried out around the world to test the usefulness of chest computed tomography (CT) without contrast medium (baseline CT) at low radiation doses (LDCT).