Table 1 Mean values for volumes of expired air and mean for all three ultrasound methods to measure diaphragm movement
From: The Area method: a new method for ultrasound assessment of diaphragmatic movement
Mean | SD | Minimum | Maximum | n, observation | |
|---|---|---|---|---|---|
M-mode, cm | 6.6 | 2.4 | 1.9 | 10.8 | 79 |
Volume of expired air, l | 4.5 | 2.3 | 0.8 | 8.4 | 79 |
B-mode, cm | 3.0 | 1.8 | 0.4 | 7.4 | 79 |
Volume of expired air, l | 3.8 | 2.3 | 0.4 | 7.3 | 79 |
Area Method, cm2 | 89.8 | 51.0 | 17.0 | 197.0 | 72 |
Volume of expired air, l | 3.8 | 2.2 | 0.4 | 7.3 | 72 |