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Baseline angiography of the index aneurysm. (a) 3D working projection baseline angiography. Upper left corner denotes the aneurysm dimensions: N: neck at 4.77 mm, W1: Equatorial width at 6.25 mm, and W2: Maximum width at 8.47 mm, (b) Angiography showing the index aneurysm in 2D.
