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SAH in a 48-year-old man. Internal carotid artery angiogram (A) shows a 12-mm aneurysm of the posterior communicating artery. Selective embolization with Matrix coils only: 12 coils were delivered within the aneurysmal sac. Conventional non-substracted (B) and substracted (C) angiograms at the end of the procedure showed a complete aneurysm occlusion despite a moderate packing.
