Identification of intracranial occlusion location with 3D TOF-MRA and CE-MRA compared with DSA as the reference standarda
| Occlusion Location | TOF-MRA | CE-MRA | DSA |
|---|---|---|---|
| CCA | 0 (0%) | 3 (66.7%) | 2 |
| Proximal ICA | 0 (0%) | 21 (90.5%) | 21 |
| Distal ICA | 53 (18.9%) | 34 (100%) | 36 |
| M1 | 54 (96.3%) | 68 (94.1%) | 66 |
| M2 | 14 (92.9%) | 13 (92.3%) | 17 |
| M3 | 1 (100%) | 1 (100%) | 2 |
| Basilar artery | 6 (100%) | 6 (100%) | 6 |
Note:—CCA indicates common carotid artery.
↵a Site of occlusion (absolute numbers), based on the respective imaging modality with percentage of agreement with DSA.