Endobronchial Ultrasound and Biopsy

摘要

EBUS can be performed using either the balloon or direct contact method or convex-probe fiber. Those methods are usually selected according to whether the object of study is centrally or peripherally situated.EBUS using a guide sheath (EBUS-GS) provides the pathway to peripheral pulmonary lesions. One advantage of EBUS-GS lies in the repeatability of access to the bronchial lesion for sampling. Another advantage of EBUS-GS lies in its ability to protect against bleeding into proximal bronchus form the biopsy site.With the introduction of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), diagnosis of lesions such as hilar-mediastinal lesions became possible with less invasion. Since EBUS-TBNA can be used not only for cytology but also for pathology, it can diagnose not only lung cancer but also sarcoidosis and malignant lymphoma.EBUS is the essential procedure in the field of thoracic disorders.