Aneurysm angiographic outcomes

Occlusion GradeNo. of Aneurysms
At treatment (n = 141)
 I104 (74%)
 II34 (24%)
 III3 (2%)
At follow-up (n = 94)
 I74 (79%)
 II17 (18%)
 III3 (3%)
  • Note—Average radiographic follow-up was 10 months. Occlusion grades were as follows: I, complete angiographic occlusion, no neck remnant, approximately 100%; II, subtotal occlusion, coils at the neck but some body filling or small neck remnant, approximately 95–99%; and III, incomplete occlusion, residual aneurysm body filling or sizable neck remnant or coil compaction, <95%.