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Diagnostic results between two methods [n (%)].
| Examination method | Accuracy | Sensitivity | Specificity |
|---|---|---|---|
| Ultrasound contrast | 92(95.83) | 64(96.97) | 28(93.33) |
| Color Doppler ultrasound | 75(78.13) | 52(78.79) | 23(76.67) |
| X2 | 12.183 | 9.154 | 8.657 |
| P | <0.05 | <0.05 | <0.05 |
