Table 2.
Ultrasound test measurements with ROC-curve characteristics.
| Test Modality | Median (IQR) | AUC | 95% CI |
|---|---|---|---|
| M-mode | |||
| Lung movement (cm) | 0.94 (0.44–1.11) | 0.81 | 0.68–0.95 |
| Diaphragm movement (cm) | 1.21 (0.56–2.01) | 0.77 | 0.61–0.93 |
| B-mode | |||
| Diaphragm movement (cm) | 0.86 (0.41–1.27) | 0.65 | 0.46–0.84 |
| Area method—delta (cm2) | 11.50 (6.69–15.95) | 0.60 | 0.40–0.79 |
| Lung sliding * | 24 (50%) | 0.74 | 0.61–0.87 |
| Shear Wave Elastography | |||
| Visceral pleura (m/s) | 1.64 (1.47–2.08) | 0.59 | 0.40–0.79 |
| Pleural effusion (m/s) | 1.64 (1.34–2.06) | 0.53 | 0.34–0.71 |
| Parietal pleura (m/s) | 2.54 (2.03–3.09) | 0.57 | 0.39–0.75 |
* n (%) for categorical measures.