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

Table 1 Ultrasonography B-line and dual-lung 6-zone pulmonary consolidation score in children with respiratory distress syndrome

Classification	Ultrasonography changes	Ultrasonography scores
B-line	There are A-lines and the number of B-lines is < 3	0
	B-lines appear between two consecutive ribs or more, i.e. B-lines ≥ 3	1
	Dense and integrated B-line (without A-line)	2
Pulmonary consolidation	No pulmonary consolidation	0
	Involved intercostal space, lung consolidation range ≤ 1/2 of the lung field	3
	The range of the lung consolidation involving the intercostal space is greater than half of the lung field	4