Categorized degree of stenosis on DUS and DSA. All 98 carotid arteries in this table were recognized as flow voids on MRA
| Categories of Stenosis at DUS | Categories of Stenosis at DSA | ||||
|---|---|---|---|---|---|
| 0–49% | 50–69% | 70–99% | 100% | Total | |
| 0–49% | 0 | 0 | 0 | 0 | 0 |
| 50–69% | 0 | 1 | 2 | 0 | 3 |
| 70–99% | 3 | 10 | 79 | 1 | 93 |
| 100% | 0 | 0 | 1 | 1 | 2 |
| Total | 3 | 11 | 82 | 2 | 98 |