Circulating Tumor DNA Guided Therapeutic Strategies for CRC Patients With Small Pulmonary Nodules

"Radical surgical resection, local radiotherapy, radiofrequency ablation (RFA) or interventional therapy (absolute alcohol or cryotherapy).~The equipment used for RFA of lung lesions consisted of the radiofrequency generator (CelonLab POWER), cold circulation pump (Celon Aquaflow Ⅲ), radiofrequency needle electrode (Celon proSurge: T20, T30 and T40 is an electrode length of 20, 30 and 40 mm respectively, and maximum output power of 20, 30 and 40 W; Olympus Surgical Technologies Europe, Hamburg, Germany)."