TABLE 1:
Comparison of aneurysms treated with adjunctive HydroCoil Embolization System (HES) vs. platinum coils alone
| Patient | Aneurysm volume (ml) | % fill total | % fill HES | # HES coils | # platinum coils | #coils/aneurysm | # coils/ml |
|---|---|---|---|---|---|---|---|
| HES 1 | 0.063 | 66 | 41 | 1 | 3 | 4 | 63 |
| HES 2 | 0.042 | 76 | 62 | 1 | 1 | 2 | 48 |
| HES 3 | 0.029 | 87 | 63 | 1 | 2 | 3 | 103 |
| HES 4 | 0.174 | 87 | 74 | 4 | 2 | 6 | 34 |
| HES 5 | 0.063 | 91 | 71 | 2 | 1 | 3 | 48 |
| HES 6 | 0.113 | 45 | 23 | 1 | 5 | 6 | 53 |
| HES 7 | 0.094 | 55 | 27 | 1 | 3 | 4 | 43 |
| HES 8 | 0.167 | 56 | 44 | 2 | 3 | 5 | 30 |
| HES 9 | 0.092 | 72 | 56 | 2 | 3 | 5 | 54 |
| HES 10 | 0.026 | 88 | 72 | 1 | 1 | 2 | 77 |
| HES 11 | 0.059 | 85 | 76 | 2 | 1 | 3 | 51 |
| Mean | 0.084 | 73 | 55 | 1.6 | 2.3 | 3.9 | 55 |
| Platinum 1 | 0.065 | 34 | 6 | 6 | 92 | ||
| Platinum 2 | 0.042 | 44 | 7 | 7 | 167 | ||
| Platinum 3 | 0.034 | 27 | 3 | 3 | 88 | ||
| Platinum 4 | 0.031 | 48 | 5 | 5 | 161 | ||
| Platinum 5 | 0.092 | 18 | 4 | 4 | 43 | ||
| Platinum 6 | 0.079 | 42 | 4 | 4 | 51 | ||
| Platinum 7 | 0.113 | 31 | 6 | 6 | 53 | ||
| Platinum 8 | 0.236 | 23 | 4 | 4 | 17 | ||
| Platinum 9 | 0.065 | 22 | 4 | 4 | 62 | ||
| Platinum 10 | 0.079 | 21 | 5 | 5 | 63 | ||
| Platinum 11 | 0.038 | 38 | 3 | 3 | 79 | ||
| Mean | 0.079 | 32 | 4.6 | 4.6 | 80 | ||
| P value | .85 | .0001 | .23 | .12 |
Note.—% fill total, percentage of aneurysm volume filled by embolic devices; % fill HES, percentage of aneurysm volume filled by HES coils; # coils/mL, number of coils per milliliter of aneurysm volume.