Lung VSI compared with chest X-ray
| Overall (n=102) | X-ray abnormal (n=49) | X-ray normal (n=26) | X-ray indeterminate (n=27) | Cohen’s κ (95% CI, p value) | ||
| Ultrasound | Abnormal | 49% (39%–59.1%) | 79.6% (65.7%–89.8%) | 7.69% (0.946%–25.1%) | 33.3% (16.5%–54%) | 0.47 (0.33 to 0.62, p<0.0001) |
| Normal | 31.4% (22.5%–41.3%) | 6.12% (1.28%–16.9%) | 76.9% (56.4%–91%) | 33.3% (16.5%–54%) | ||
| Indeterminate | 19.6% (12.4%–28.6%) | 14.3% (5.94%–27.2%) | 15.4% (4.36%–34.9%) | 33.3% (16.5%–54%) | ||
Results separated by consensus chest X-ray for all subjects, reported as percentage (95% CI).
VSI, volume sweep imaging.