Results for detecting a 70–99% stenosis with contrast-enhanced MR angiography and duplex sonography
| Parameter | MR Angiography (n = 4 × 71) | Sonography (n = 71) |
|---|---|---|
| Sensitivity (%)* | 94.9 (91–100) | 92.9 (91–94) |
| Specificity (%)* | 79.1 (76–84) | 81.9 (74–86) |
| False-negative† | 7 (2.5) | 10 (3.5) |
| False-positive† | 30 (10.6) | 26 (9.2) |
* Numbers in parentheses are 95% confidence intervals.
† Data are number (%) of evaluations.