The investigators evaluate feasibility,efficacy and safety of UTB combined with VBN and EBUS for the diagnosis of PPLs without radiographic fluoroscopy.Bronchoscopes with a 3.0-mm distal end diameter and a 1.7-mm working channel diameter are used (BF-Y0058;Olympus).The final diagnoses are established by pathological evidence from biopsy or cytology specimen including bronchoscopy or other procedures,microbiological analysis and clinical follow-up.The study is designed as a single center prospective randomized controlled trial.The participating center is Department of endoscopy, Shanghai Chest Hospital, Shanghai Jiao Tong University, China.Subjects will be randomized (1:1) to UTB-VBN-EBUS-X-ray group and UTB-VBN-EBUS group based on a randomization schedule.The study is expected to enroll 200 patients with 100 patients of each group.
The purpose of this study is to evaluate the feasibility,efficacy and safety of ultrathin bronchoscopy(UTB) combined with virtual bronchoscopic navigation(VBN) and endobronchial ultrasound(EBUS) for the diagnosis of peripheral pulmonary lesions (PPLs) without radiographic fluoroscopy.