Figure 3: Incomplete aneurysm occlusion with eventual complete thrombosis. Left, initial angiogram. Center, immediate post-treatment result, showing subtotal aneurysm packing and obvious contrast filling around the periphery of the fundus. Dense packing of the aneurysm base was not possible because the aneurysm neck could not be completely separated from the posterior cerebral arteries despite imaging in multiple projections. Right, six-month follow-up angiogram shows no contrast filling around the coil mass. Dynamic rotational angiography confirmed complete aneurysm occlusion.
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