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Lung SBRT using Elekta technology
4
ESTRO SBRT Course 2015
OAR definition
Proximal bronchial tree
• Delineated on the mediastinal CT window
• Includes mucosa, submucosa, cartillage rings, and
airway channels associated with these structures
• Starts 2 cm above carina and ends at the site of
segmental bifurcation of the bronchi