Comparative Study on the Efficacy and Safety of Microwave Ablation and Lobectomy in the Treatment of Ground Glass Nodules Located in the Pulmonary Hilar Region

Inclusion Criteria: 1. The age ranged from 18 to 75 years old, male or female; 2. GGO lesions in the hilar region were diagnosed by imaging examination (CT / PET-CT). During the follow-up of 6-12 months, the lesions increased by more than 2mm, the solid components increased, or there were obvious solid components, or the GGOs were judged to be highly malignant by imaging. 3. The size of GGO lesions was 8mm-3cm, and the number of nodules was ≤ 3. 4. There was no lymph node metastasis, intrapulmonary metastasis or distant organ metastasis; 5. After multidisciplinary evaluation, the patients were feasible for lobectomy and CT guided microwave treatment; 6. No bleeding tendency, normal coagulation function or coagulation dysfunction can be corrected after treatment; 7. Patients and /or family members agreed to join the clinical trial and signed informed consent. Exclusion Criteria: 1. The general condition of the patient is very poor, ECOG physical fitness score \> 2, unable to tolerate lobectomy and MWA treatment, or has relevant contraindications; 2. The lesions had received other treatments before; patients with regional lymph node metastasis or distant metastasis or with pleural fluid and ascites; 3. Patients with poor compliance; 4. Severe heart, lung, kidney, brain and other important organ diseases; 5. The researcher believes that it is not suitable for inclusion