Table 4.
Comparison between US findings and Chest-CT findings classified in Typical and Indeterminate according to what proposed by the Radiological Society of North America (RSNA) Expert Consensus Statement on Reporting Chest-CT Findings Related to COVID-19 [15]. Values in parenthesis correspond to 95% confidence interval (95% CI). Abbreviations: COVID-19, coronavirus disease 2019.
| Lung Ultrasound | Chest Computed Tomography | ||
|---|---|---|---|
| Indeterminate CT Appearance | Typical CT Appearance | Total | |
| No alterations | 11 | 28 | 39 |
| Thickened and irregular hyperechoic pleural line | 0 | 30 | 30 |
| ≥3 B-lines (coalescent or not) | 0 | 30 | |
| Subpleural consolidations | 0 | 12 | 12 |
| Subpleural hypoechoic nodulation | 1 | 1 | |
| Total | 12 | 70 | 82 |
| Sensitivity | 8% (0–38%) | 60% (48–72%) | 52% (41–64%) |