Relationship between neonatal respiratory distress syndrome pulmonary ultrasonography and respiratory distress score, oxygenation index, and chest radiography grading

Figure 4 X-ray grade 3 respiratory distress syndrome neonatal lung ultrasonography images. A: Ground-glass-like changes in the right lung R1–R2, as shown by the A-line, resulting in 2 points; B, E–G: Representative images showing consolidation of the left lung L1–L4 and right lung L3–L4 in half of the lung field, with 5 points for each area; C, D, H–J: Representative images showing consolidation of R5–R6/L5–L6 involving the entire lung field, with 6 points for each area and a total ultrasonography score of 29 points.