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Accuracy of gray scale, color, spectral Doppler and the combined sonography.
| Modality | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| Gray | 83.72% | 86.75% | 64.28% | 94.9% | 86.08% |
| COL | 95.34% | 80.4% | 58.57% | 98.34 % | 83.76 % |
| SPE | 76.78% | 81.7% | 55% | 92.36% | 80.62% |
| GR+DOP | 94.59 % | 88.9% | 68.62% | 98.47% | 90.10 % |
GR: Gray scale, COL: color Doppler, SPE: spectral Doppler, DOP: Doppler
