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

Figure 3 X-ray grade 2 respiratory distress syndrome neonatal pulmonary ultrasonography images. A, B, F–H: Representative images showing ground-glass-like changes in the R1–R4/L1–L4 region. Transverse scanning confirms continuous interruption of pleural lines with snowflake-like changes, similar to lung adenocarcinoma in situ, but in reality, they indicate early or mild lung consolidation changes, with 2 points for each region; C–E, I, J: Representative images showing the disappearance of pleural and A-lines in the R5–6/L5–6 region, with pulmonary consolidation accompanied by bronchial inflation sign. Transverse scan confirms that each area scores 6 points, and the total ultrasonography score is 20 points.