Correlation between TOF-MRA and angiography*
| TOF-MRA | Angiography | |||
|---|---|---|---|---|
| Incomplete Occlusion | Adequate Occlusion | Total | ||
| Neck Remnant | Complete Occlusion | |||
| Incomplete occlusion | 9 | 0 | 1 | 10 |
| Adequate occlusion | ||||
| Neck remnant | 3 | 14 | 5 | 22 |
| Complete occlusion | 0 | 13 | 24 | 37 |
| Total | 12 | 27 | 30 | 69 |
Note:—TOF-MRA indicates time-of-flight MR angiography.
* Correlation for the 3-tier classification was moderate (κ = 0.57; 95% confidence interval [CI]), 0.40–0.74) with a full agreement in 47 (68%) of 69 aneurysms. Correlation for the 2-tier classification, adequate and incomplete occlusion, was good (κ = 0.78; 95% CI, 0.58–0.99), with a full agreement in 65 (94%) of 69 aneurysms.