Meta-analyses evaluating pleural and lung ultrasonography
| Diagnosis | Meta-analysis | No. of studies | No. of patients | Pooled sensitivity | 95% confidence interval | Pooled specificity | 95% confidence interval | Positive likelihood ratio | Negative likelihood ratio |
|---|---|---|---|---|---|---|---|---|---|
| Pleural effusion | Yousefifard et al,11 2016 | 12 | 1,554 | 94% | 88%–97% | 98% | 92%–100% | 53.96 | 0.06 |
| Acute cardiogenic pulmonary edema | Maw et al,9 2019 | 7 | 1,075 | 94.1% | 81.3%– 98.3% | 92.4% | 84.2%– 96.4% | 12.38 | 0.06 |
| Pneumonia | Alzahrani et al,10 2017 | 20 | 2,513 | 85% | 84%–87% | 93% | 92%–95% | 12.14 | 0.16 |
| Pneumothorax | Alrajab et al,8 2013a | 13 | 1,514 | 78.6% | 68.1%–98.1% | 98.4% | 97.3%–99.5% | 49.13 | 0.22 |
↵a Included 1 study that used lung sliding sign alone, 12 studies that used lung sliding and comet tail signs, and 6 studies that included lung point in addition to the other 2 signs.