Читать книгу Atlas of Endoscopic Ultrasonography - Группа авторов - Страница 43

Just like EUS, EBUS can be performed with conscious sedation, deep sedation, or general anesthesia. The tip of the scope is placed under direct visual contact in different positions, starting from the segmental bronchi to the trachea usually scanning 90–120 degrees every 0.5–1 cm. The diameter of the EBUS scope (6–7 mm) precludes passage beyond the second or third airway generation. EBUS‐TBNA is performed under the same principles as EUS‐FNA. As mentioned before, this technique is particularly useful for LN stations 2, 4, 7, 10, and 11 (Figure 3.6). The upper and middle third of the esophagus can be visualized from the upper and lower trachea respectively Currently, we have different sizes of needle available, including 19, 21, 22, and 25 G.