Figure 1
From: Diaphragm ultrasound as a new index of discontinuation from mechanical ventilation
Diaphragm thickness at TLC and RV in patients who failed and succeeded the spontaneous breathing trial. Boxplot of diaphragm thickness: the central line represents the median value, the box boundaries represent the 25th and 75th percentiles, the whiskers represent the lowest datum within 1.5 inter-quartile range (IQR) of the lower quartile and the highest datum within 1.5 IQR of the upper quartile, and the circles represent outlier values. Diaphragm thickness at total lung capacity (TLC) and residual volume (RV) for patients who failed the spontaneous breathing trial: 0.30 [0.20 to 0.40] and 0.24 [0.17 to 0.30], p < 0.09. Diaphragm thickness at TLC and RV for patients who succeeded the spontaneous breathing trial: 0.38 [0.29 to 0.45] and 0.25 [0.19 to 0.28], p < 0.0001.