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Imaging diagnostic results of B-mode ultrasound and CT examinations (n, %).
| Item | B-mode ultrasound | CT | χ2 | P-value |
|---|---|---|---|---|
| Pleural effusion | 534 (77.96) | 492 (71.82) | 6.847 | 0.071 |
| Pleural calcification | 507 (74.01) | 497 (72.55) | 0.373 | 0.068 |
| Parietal pleura thickening | 19 (2.77) | 149 (21.75) | 114.723 | 0.021 |
| Pericardial effusion | 41 (5.99) | 86 (12.55) | 17.571 | 0.036 |
CT, computed tomography.
