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The Ultrasound Journal
Fig. 3 | The Ultrasound Journal

Fig. 3

From: Lung ultrasound to evaluate aeration changes in response to recruitment maneuver and prone positioning in intubated patients with COVID-19 pneumonia: preliminary study

Fig. 3

Regional aeration pattern. Regional aeration pattern for anterior, lateral, and posterior regions of interest regardless of the body side. Aeration distribution considering all the lung ultrasound patterns (0–3) lung are expressed as mean and standard deviation for each region of interest at supine, recruitment, and prone position, regardless of body side. Normal aeration pattern (lung ultrasound score 0—white); B1 aeration pattern (lung ultrasound score 1—light grey); B2 aeration pattern (lung ultrasound score 2—dark grey); C aeration pattern (lung ultrasound score 3—ultra-dark grey). Anterior region of interest: * vs supine for B1, p = 0.039; † vs supine for B2, p 0.022; ‡ vs recruitment for C, p = 0.030. Lateral region of interest: ** vs supine for C, p = 0.020. Posterior region of interest: †† vs supine for B1, p < 0.001; ‡‡ vs recruitment for B1, p = 0.004; *** vs supine for C, p = 0.016; ††† vs supine for C, p = 0.033

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