Figure 1a:
Representative angiograms of aneurysms that were densely and loosely packed with platinum coils. (a) Relatively smaller aneurysm (volume, < 50 mm3) cavity before embolization. (b) Aneurysm densely packed with platinum coils. Aneurysm cavity is completely occluded immediately after embolization. (c) Follow-up image at 4 weeks after embolization shows stable occlusion of the aneurysm from the parental artery. (d) Relatively larger aneurysm (volume, >70 mm3) cavity before embolization. (e) Aneurysm loosely packed with platinum coils. Aneurysm cavity is not completely occluded immediately after embolization. (f) Follow-up image at 4 weeks after embolization shows coil compaction.