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Figure 5 | BMC Anesthesiology

Figure 5

From: Lung volume assessments in normal and surfactant depleted lungs: agreement between bedside techniques and CT imaging

Figure 5

Polar plots demonstrating the degree and the trend of agreements between the lung volume indices. Closed symbols on the left panels represent lung volume measurements in normal lungs while open symbols on the right panels denote the values obtained after lavage. The angle between the radial vector and the horizontal axis represents the magnitude of difference between the corresponding variables (in ml), while the distance from the center represents the mean of the two corresponding variables (in ml). Solid lines indicate the mean polar angles, while thick dashed lines denote the radial limits of agreements.

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