Diagnostic performance and agreement of CE-MRA and TOF-MRA for arterial stenosis and occlusion in comparison with DSA
| DSA | No Disease | Mild Stenosis (≤50%) | High Grade (>50%, <99%) | Occlusion | ||||
|---|---|---|---|---|---|---|---|---|
| CE-MRA | TOF-MRA | CE-MRA | TOF-MRA | CE-MRA | TOF-MRA | CE-MRA | TOF-MRA | |
| No disease | 353 | 324 | 7 | 17 | 0 | 14 | 0 | 5 |
| Mild stenosis (≤50%) | 5 | 4 | 7 | 3 | 7 | 4 | 0 | 8 |
| High grade (>50%, <99%) | 0 | 0 | 0 | 0 | 11 | 4 | 1 | 8 |
| Occlusion | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 19 |
Note:—n = 410 arterial segments. DSA served as reference standard.
Intermodality agreement for CE-MRA: k = 0.89; 95% CI, 0.84–0.92.
Intermodality agreement for TOF-MRA, k = 0.63; 95% CI, 0.60–0.72.