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Fig 3. A, Selective DSA of the left internal carotid artery before treatment reveals a small aneurysm (arrow) of the anterior communicating artery. B, This aneurysm (arrow) appears completely occluded at follow-up DSA performed after embolization. C and D, Follow-up 3D TOF MRA source image (C) and MIP reconstruction (D) obtained at 3 months after treatment reveal high-signal-intensity inhomogeneities (arrow) in the region of the aneurysm neck but do not clearly demonstrate an aneurysm remnant. E and F, CE-MRA source image (E) and MIP reconstruction (F) clearly reveal the presence of a small (type 2) remnant.
