Abstract
Radial probe endobronchial ultrasound is a technique in which a small ultrasound probe is introduced into the tracheobronchial lumen to obtain sonographic images of peribronchial tissues. Using a water-filled balloon around the probe, five-layered structure of the tracheal and bronchial wall can be identified with this technique in normal subjects. In the central airways, this technique is most useful in determination of the depth of invasion of endobronchial tumor into the airway wall. Endobronchial ultrasound with guide sheath is a modified technique in which the radial probe ultrasound is introduced via a guide sheath and is advanced into the peripheral pulmonary lesion. A diagnostic yield of 74 % has been reported with this technique for peripheral pulmonary lesion smaller than 3 cm in size. In recent years, efforts have been made to utilize electromagnetic navigation or virtual bronchoscopy navigation for more accurate placement of ultrasound probe and guide sheath into the tumor, in order to further improve diagnostic yield from peripheral pulmonary nodules using this technique.
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© 2013 Springer Science+Business Media New York
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Kurimoto, N. (2013). Radial Probe Endobronchial Ultrasound. In: Mehta, A., Jain, P. (eds) Interventional Bronchoscopy. Respiratory Medicine, vol 10. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-395-4_4
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DOI: https://doi.org/10.1007/978-1-62703-395-4_4
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