1.Bronchial artery perfusion chemotherapy (& pulmonary artery perfusion chemotherapy)-precision treatment Firstly, determine the blood supply characteristics of the tumor lesion, the pulmonary blood supply system has bronchial artery (from aorta) and pulmonary artery (from pulmonary artery cone and right ventricle), and the drainage vessel is pulmonary vein; clarify whether the tumor is mainly supplied by bronchial artery and pulmonary artery through enhanced CT or MRI. Through bronchial arteriogram and pulmonary arteriogram, then further determine the characteristics of tumor blood supplying vessels. 2.Precise treatment of local lesions with radioactive I125 particles 125I radioactive particle therapy for lung cancer has the following characteristics: it can better control local lesions, and the efficiency can reach 100%. The effective diameter of 125I radioactive particles is 1.7cm, and the damage to normal tissues after implantation is very slight. It is minimally invasive interventional treatment with few complications.