Comprehensive Quantitative Assessment of Lung Liquid Clearance by Lung Ultrasound Score in Neonates with No Lung Disease during the First 24 Hours

Figure 2

Four ultrasound aeration patterns. (a) Normal aeration (N): the presence of lung sliding with only A-lines or fewer than three isolated B-lines; (b) moderate aeration loss: interstitial syndrome, localized pulmonary edema, defined by coalescent B-lines in less than 50% of the intercostals space, multiple well-defined B-lines, or subpleural consolidations; (c) severe aeration loss: alveolar edema, defined by diffused coalescent B-lines occupying the whole intercostals spaces; (d) complete aeration loss (C): the presence of a tissue pattern with or without air bronchogram.

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