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. Author manuscript; available in PMC: 2012 Feb 3.
Published in final edited form as: IEEE Trans Med Imaging. 2010 Sep 16;30(2):266–278. doi: 10.1109/TMI.2010.2076300

Fig. 11.

Fig. 11

Airway trees are shown (bottom row) after performing the segmentation algorithm on the three-dimensional lung anatomical structures modeled at different iso-values: (a) −750HU, (b) −800 HU, (c) −880 HU, and (d) −900 HU. The airway tree identified at an iso-value of −850 HU is shown in Fig. 10. For better visualization, only a fraction of the lung anatomical structures are displayed.