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Vessel segmentation and network representation for one subject. Each node in the graph represents a vessel centerline segment, and the edges reflect the connections between the vessel segments. Edges are directed away from the internal carotid arteries. Legend: ICA=internal carotid a., ophth=ophthalmic a., ACA=anterior cerebral a., MCA=middle cerebral a., Acomm=anterior communicating a. First letter (L or R) indicates the cerebral hemisphere.
