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Sensitivity and specificity compared to computer tomography
| Variable | Plain film (95%CI) | Ultrasound(95%CI) |
|---|---|---|
| Sensitivity | 78(49.2–95.3) | 92.9(66.2–99.8) |
| Specificity | 80(56.3–94.3) | 90(68.3–98.8) |
| Positive predictive value | 73.3(44.9–92.3) | 86.7(59.5–98.3) |
| Negative predictive value | 84.2(60.4–96.6) | 94.7(74–99.9) |
| Accuracy | 79 | 91 |
