成都中医药大学附属医院肺结节患者研究：纳入标准及CT检查

The study included lung nodule patients and recruited healthy individuals from the Respiratory Department and Pulmonary Nodule Clinic of the affiliated hospital of Chengdu University of Traditional Chinese Medicine from March 2022 to July 2023. All study subjects underwent pulmonary CT examinations. The diagnostic criteria for lung nodule patients were as follows: 1) lung nodule diameter ≤ 3cm; 2) opacity on CT images; 3) no lung collapse, mediastinal enlargement, and pleural effusion.