Incidental aneurysm discovered at MR angiography in a 48-year-old man with headaches.
A, Left ICA angiogram shows a giant aneurysm of the anterior communicating artery.
B, Road map obtained during balloon inflation at the aneurysm neck and delivery of liquid embolic.
C, Follow-up angiogram shows liquid embolic fills the major part of the aneurysmal sac. Coils were then added to complete the aneurysm occlusion at the neck.
D and E, Follow-up nonsubstracted (D) and substracted (E) angiograms at the end of treatment show complete occlusion of the aneurysm.
F, Follow-up angiogram at 24 months shows stable occlusion of the aneurysm.