Table 2.
Degree of agreement between lung ultrasound and chest X-ray imaging in diagnosing normal and abnormal lung conditions
| Total number of study | LUS (n) | Kappa coefficient | |
|---|---|---|---|
| Normal | Abnormal | ||
| Overall, degree of agreement between LUS and CXR imaging | |||
| CXR (n=500) | |||
| Normal | 404 | 33 | 0.652 |
| Abnormal | 11 | 52 | |
| Degree of agreement between LUS and CXR imaging in the immediate postoperative period | |||
| CXR (n=250) | |||
| Normal | 180 | 26 | 0.602 |
| Abnormal | 7 | 37 | |
| Degree of agreement between LUS and CXR imaging in the first postoperative period | |||
| CXR (n=250) | |||
| Normal | 224 | 7 | 0.740 |
| Abnormal | 3 | 16 | |
CXR=Chest X-ray, LUS=Lung ultrasound