Final guide catheter placement in the anterior circulation
| Total cases | Intracranial (n (%)) | Horizontal petrous (n (%)) | Vertical petrous (n (%)) | Cavernous (n (%)) | Cervical (n (%)) | |
| 0.070 inch | ||||||
| Neuron | 205 | 165 (80.5) | 53 (25.9) | 87 (42.4) | 25 (12.2) | 40 (19.5) |
| Chaperone | 116 | 67 (57.3) | 29 (25.0) | 29 (25.0) | 9 (7.8) | 49 (42.2) |
| Total 0.070 inch | 321 | 232 (69.5) | 82 (25.5) | 116 (36.1) | 34 (10.6) | 89 (27.7) |
| 0.053 inch | ||||||
| Neuron | 63 | 48 (76.2) | 15 (23.8) | 22 (34.9) | 11 (17.5) | 15 (23.8) |
| Chaperone | 17 | 11 (64.7) | 4 (23.5) | 4 (23.5) | 4 (23.5) | 6 (35.3) |
| Total 0.053 inch | 80 | 59 (73.8) | 19 (23.8) | 26 (32.5) | 15 (18.8) | 21 (26.3) |
| Total current generation guide (070 inch and 053 inch) | 401 | 291 (72.6) | 101 (25.2) | 142 (35.4) | 49 (12.2) | 110 (27.4) |
| 6F Shuttle | 69 | 1 (1.4) | 1 (1.4) | 0 (0.0) | 0 (0.0) | 68 (98.6) |
| 6F Envoy XB | 47 | 3 (6.4) | 3 (6.4) | 0 (0.0) | 0 (0.0) | 44 (93.6) |
| Total conventional guide (Shuttle and Envoy) | 116 | 4 (3.4) | 4 (3.4) | 0 (0.0) | 0 (0.0) | 112 (96.6) |