Interobserver variability in Lung CT Screening Reporting and Data System categorisation in subsolid nodule-enriched lung cancer screening CTs

ConclusionThis retrospective study observed variable accuracy and moderate interobserver agreement in radiologist categorisation of subsolid nodules in screening CTs. This inconsistency may affect management recommendations for lung cancer screening.Key Points•Diagnostic performance for Lung-RADS categorisation is variable among radiologists with fair to moderate interobserver agreement in subsolid nodule-enriched CT scans.•Experienced thoracic radiologists showed more accurate and consistent Lung-RADS categorisation than radiology residents.•The relative abundance of part-solid nodules was a potential factor related to increased disagreement in Lung-RADS categorisation.
Source: European Radiology - Category: Radiology Source Type: research