UTB-VBN-EBUS With or Without Fluoroscopy for the Diagnosis of PPLs

VBN is carried out by a VBN software（DirectPath;Olympus,Japan) which can automatically create virtual bronchoscopic images.

EBUS is performed using an endoscope ultrasound system , which is equipped with a 20-MHz mechanical radial-type probe (UM-S20-17S;Olympus) with an external diameter of 1.4 mm.

The radiograph fluoroscopy is performed when the probe is confirmed to reach the lesion by EBUS image ,cytologic and pathologic specimens are obtained under fluoroscopic guidance.