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Probability values of different EDV thresholds for the detection of ≥80% bulb internal carotid artery stenosis
| EDV threshold | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| 125 cm/s | 90% | 86% | 78% | 94% | 83% |
| 130 cm/s | 90% | 88% | 79% | 94% | 85% |
| 135 cm/s | 87% | 88% | 80% | 93% | 88% |
| 140 cm/s* | 84% | 91% | 83% | 91% | 90% |
| 145 cm/s | 79% | 92% | 84% | 89% | 89% |
| 150 cm/s | 76% | 94% | 86% | 88% | 88% |
| 155 cm/s | 74% | 94% | 87% | 87% | 87% |
EDV, End diastolic velocity; PPV, positive predictive value; NPV, negative predictive value.
denotes optimum value.
