Clinical Research Directory

Inclusion Criteria: * The patient must be at least 18 years old * Karnofsky Performance Status \> 80 * NSCLC confirmed by cytology or histology * Early-stage tumors are defined as T1 (≤3cm) N0M0 based on enhanced computed tomography (CT) and positron emission tomography (PET) * The tumor must be more than 2 cm away from the proximal bronchial tree in all directions (the proximal bronchial tree is defined as 2 cm from the distal end of the trachea, the protrusion and the named lobar bronchus up to its first bifurcation) * FEV1 ≥ 1 L, FEV1 ≥ 40% of the predicted value (either one is sufficient); DLCO ≥ 40% of the predicted value * The patient can tolerate PET-CT examination * For female study participants of childbearing age, the urine or serum pregnancy test was negative within 7 days prior to the first administration of the study drug. If the result of the urine pregnancy test is positive, a blood pregnancy test is required Exclusion Criteria: * Other malignant tumors occurred concurrently within 2 years before enrollment * A history of chest radiotherapy in the past * It is planned to use other anti-tumor treatments within the regimen treatment (within 4 weeks)