We retrospectively analyzed the records of patients who underwent anatomical segmentectomy via 3D‐CTBA‐VATS or 2D‐VATS in our department from January 2014 to May 2017. Patients were divided into randomly selected groups (Table 1). The eligibility criteria were as follows: (i) clinical diagnosis of NSCLC and clinical staging of T1aN0M0 or T1bN0M0; (ii) each patient underwent anatomical segmentectomy using 3D‐CTBA‐VATS or 2D‐VATS; (iii) no limitation on age or gender; (iv) preoperative definitive diagnosis by chest CT, head magnetic resonance imaging, abdominal B‐ultrasound and bone scan excluding distant metastasis, and routine assessment of cardiopulmonary function excluding surgery contraindications; and (v) no neoadjuvant chemotherapy or radiotherapy treatment had been administered.
The Ethics Committee of the First Affiliated Hospital of Soochow University approved the study. Written informed consent was obtained from all patients before surgery.