Linear-Endobronchial Ultrasound-guided Insertion of a Fiducial Marker: A New Tool for Tracking Central Lesions.

Stereotactic body radiotherapy (SBRT) is an effective method for the treatment of localized primary lung tumors. Cyberknife, a highly accurate SBRT technique, follows the target during respiratory cycles using a metallic fiducial marker (FM) previously inserted into the lesion. Various methods have