Feasibility of Intratumoral Washing Fluid for Detecting EGFR Mutations in Lung Cancer

Each subject with NSCLC will undergo bronchooscopic procedure. First, ultrathin bronchoscope is inserted and placed within tumor under radial EBUS, virtual bronchoscopic navigation, and fluoroscopy guidance. Then, intratumoral washing is performed. Subsequently, transbronchial lung biopsy is performed under radial EBUS, virtual bronchoscopic navigation, and fluoroscopy guidance.