Table 2.
Ultrasound and CXR compared with CT (N = 38)
| Diagnostic Tool | CT Chest with Confirmed Pneumonia (N = 32) | Sensitivity, % | Specificity, % | PPV, % | NPP, % | PLR, % | NLR, % | |
|---|---|---|---|---|---|---|---|---|
| Positive | Negative | |||||||
| LUS | ||||||||
| LU+ | 31 | 1 | 96.9 | 83 | 97 | 83 | 5.81 | 0.04 |
| LU− | 1 | 5 | ||||||
| CXR | ||||||||
| CXR+ | 5 | 5 | 15.6 | 16.67 | 50 | 3 | 0.19 | 5 |
| CXR− | 27 | 1 | ||||||
LU, lung ultrasound; CXR, chest X‐ray; positive (+) or negative (−) for the abnormality; bronchopneumonia present or absent based on final diagnosis; TP, true positive; TN, true negative; FP, false positive; FN, false negative; PPV, positive predictive value; NPV, negative predictive value; PRL, positive likelihood ratio; NLR, negative likelihood ratio.