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FIG 3. A, Left vertebral angiography (left oblique view; arterial phase), revealing the linear contrast stream through the hole between the two aneurysms. B, Computational grid representing the VGAM provides an endoscopic view (the front wall of the arterial aneurysm is removed) demonstrating the hole between the two aneurysms. C, One movie frame of typical instant streamlines colored according to the velocity values (in m/s). Compare the linear stream entering the venous aneurysm with its angiographic representation in the upper image.
