Table 3.
Lung ultrasound diagnosis and characteristics.
| Final ultrasound diagnosis | Children without Respiratory Symptoms (n = 230) | Pneumonia (n = 453) | Asthma (n = 133) | Bronchiolitis (n = 103) | Upper respiratory infection (n = 143) | P Value |
|---|---|---|---|---|---|---|
| Procedure time in minutes, mean (SD) | 5.5 (2.1) | 8.2 (3.1) | 7.2 (2.5) | 7.5 (2.6) | 5.9 (4.2) | <0.001 |
| Normal ultrasound, n (%) | 219 (95) | 93 (21) | 67 (50) | 36 (35) | 107 (75) | <0.001 |
| Large Consolidation | 0 (0) | 127 (28) | 3 (2) | 8 (8) | 0 (0) | <0.001 |
| Shred sign | 0 (0) | 24 (19) | 0 (0) | 2 (25) | 0 (0) | 0.81 |
| Air Bronchogram | 0 (0) | |||||
| Pleural Abnormalities | 0 (0) | 23 (18) | 2 (67) | 3 (38) | 0 (0) | 0.03 |
| Pleural Effusion | 0 (0) | 22 (17) | 1 (33) | 1 (13) | 0 (0) | 0.64 |
| Interstitial Findings | 0 (0) | |||||
| Small Consolidation | 0 (0) | 175 (39) | 46 (35) | 41 (40) | 15 (10) | <0.001 |
| Shred sign | 0 (0) | 35 (20) | 0 (0) | 5 (12) | 7 (47) | <0.001 |
| Air Bronchogram | 0 (0) | |||||
| Pleural Abnormalities | 0 (0) | 59 (34) | 18 (19) | 14 (34) | 2 (13) | 0.34 |
| Pleural Effusion | 0 (0) | 1 (1) | 1 (2) | 0 (0) | 0 (0) | 0.60 |
| Interstitial Findings | 0 (0) | |||||
| Focal Interstitial syndrome | 9 (4) | 43 (9) | 8 (6) | 10 (10) | 13 (9) | 0.09 |
| Diffuse Interstitial syndrome | 1 (0) | 9 (2) | 5 (4) | 6 (6) | 4 (3) | 0.02 |
| Pleural abnormalities only | 1 (0) | 6 (1) | 4 (3) | 2 (2) | 4 (3) | 0.26 |