Table 4:
Comparison of ungated QISS-MRA and CE-MRA for assessment of the stenosis grade of the extracranial carotid arteriesa
| Right Sideb |
Left Sideb |
|||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 1 | 2 | 3 | |
| Sensitivity (%) | 66.7 (9.4–99.2) | 100.0 (15.8–100.0) | 50.0 (1.3–98.7) | 100 (39.8–100.0) | 83.3 (35.9–99.6) | 100.0 (39.8–100.0) |
| All readers | 71.4 (29.0–96.3) | 92.9 (66.1–99.8) | ||||
| Both sides | 85.7 (63.7–97.0) | |||||
| Specificity (%) | 89.3 (71.8–97.7) | 86.2 (68.3–96.1) | 89.7 (72.7–97.8) | 92.6 (75.7–99.1) | 88.0 (68.8–97.5) | 96.3 (81.0–99.9) |
| All readers | 87.7 (78.5–93.3) | 92.4 (84.2–97.2) | ||||
| Both sides | 90.0 (84.3–94.2) | |||||
a
Data are sensitivity/specificity (95% CI).
b
Numbers 1, 2, and 3 refer to the readers.