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OAR definition
Proximal bronchial tree
07.09.17
ESTRO SBRT Course 2017
15
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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
07.09.17
ESTRO SBRT Course 2017
16