One-year follow-up outcomes of Matrix2 group and BPC group based on aneurysm volumes, initial occlusion grades, and packing density
| Matrix2 Coil, No. (%) | BPC, No. (%) | P Value | |||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Stable Occlusion | Overall Recurrence | No. | Stable Occlusion | Overall Recurrence | ||||
| Major Recanalization | Retreatment | Major Recanalization | Retreatment | ||||||
| 21 (17.4) | 11 (7.3) | ||||||||
| All aneurysm volumes | 121 | 100 (82.6) | 151 | 140 (92.7) | .066 | ||||
| 17 (14.0) | 13 (10.7) | 8 (5.3) | 7 (4.6) | ||||||
| 3 (4.5) | 4 (4.4) | ||||||||
| Volume <50 mm3 | 67 | 64 (95.5) | 90 | 86 (95.6) | .404 | ||||
| 3 (4.5) | 2 (3.0) | 2 (2.2) | 0 (0) | ||||||
| 9 (23.7) | 1 (2.2) | ||||||||
| Volume 50–200 mm3 | 38 | 29 (76.3) | 46 | 45 (97.8) | .022a | ||||
| 5 (13.1) | 4 (10.5) | 0 (0) | 0 (0) | ||||||
| 9 (56.3) | 6 (40) | ||||||||
| Volume >200 mm3 | 16 | 7 (43.8) | 15 | 9 (60) | .642 | ||||
| 9 (56.3) | 7 (43.8) | 6 (40) | 5 (33.3) | ||||||
| Initial occlusion grade | 9 (11.1) | 4 (4.2) | |||||||
| Complete obliteration | 81 | 72 (88.9) | 96 | 92 (95.8) | .092 | ||||
| 6 (7.4) | 6 (7.4) | 1 (1.0) | 1 (1.0) | ||||||
| 8 (24.2) | 5 (10.4) | ||||||||
| Residual neck | 33 | 25 (75.8) | 48 | 43 (89.6) | .160 | ||||
| 7 (21.2) | 5 (15.2) | 5 (10.4) | 5 (10.4) | ||||||
| 4 (57.1) | 2 (28.6) | ||||||||
| Residual aneurysm | 7 | 3 (42.9) | 7 | 5 (71.4) | .558 | ||||
| 4 (57.1) | 2 (28.6) | 2 (28.6) | 1 (14.3) | ||||||
| Packing density | 18 (38.3) | 8 (13.3) | |||||||
| PD <30% | 47 | 29 (61.7) | 60 | 52 (86.7) | .025a | ||||
| 15 (31.9) | 11 (23.4) | 7 (11.7) | 6 (10) | ||||||
| 2 (6.3) | 1 (2) | ||||||||
| PD 30–35% | 32 | 30 (93.7) | 49 | 48 (98.0) | .327 | ||||
| 2 (6.3) | 2 (6.3) | 1 (2) | 1 (2) | ||||||
| 1 (2.4) | 2 (4.8) | ||||||||
| PD >35% | 42 | 41 (97.6) | 42 | 40 (95.2) | .557 | ||||
| 0 (0) | 0 (0) | 0 (0) | 0 (0) | ||||||
↵a P value <.05.