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. Author manuscript; available in PMC: 2009 Nov 27.
Published in final edited form as: Acad Radiol. 2005 Jun;12(6):782–792. doi: 10.1016/j.acra.2005.01.014

Figure 6.

Figure 6

Examples of difficult cases for vessel segmentation and tracking. (a) Artery was occluded by PEs (arrows). (b, c) Artery was surrounded by lung disease.