Optimising Screening for Early Disease Detection in Familial Pulmonary Fibrosis

Inclusion Criteria: * Asymptomatic first-degree relative of patients with familial pulmonary fibrosis (FPF) Exclusion Criteria: * A previous diagnosis of interstitial lung disease (ILD) * Minors (aged \<18 years) * Pregnant Note: woman who are pregnant at the start of the study or at the time of the HRCT are not allowed to participate. If a participant gets pregnant at a later stage during the study, she will not be excluded from the study. To be able to account for a potential effect of pregnancy during data analysis, female participants can be asked if they are pregnant at every visit.