Intracranial occlusions at MRA versus DSA excluding DSA false-positive findings
| MRA Occlusion | DSA Occlusion | Total | |
|---|---|---|---|
| Yes | No | ||
| Yes | 20 | 14 | 34 |
| No | 3 | 634 | 637 |
| Total | 23 | 648 | 671 |
Note.—Data are number of vessel segments and relate to the MRA performance measures in parentheses in Table 4.