High-Resolution Computed Tomography Scores in Cases of Bronchopulmonary Dysplasia

Table 1

BPD and HRCT score table.

Category	Variable	0	1	2
Hyperexpansion	Hyperexpansion	None	Focal	Global
	Mosaic pattern of lung attenuation	None	Unclear	Obvious
	Intercostal bulging	None	Unclear	Obvious
Emphysema	Number of bullae or blebs	None	Single	Multiple
	Size of bullae or blebs	None	≤5 mm	>5 mm
Fibrosis	Triangular subpleural opacities	None	1-3 lobes	4-6 lobes
	Deformity and thickening of the bronchovascular structure	Mild	Moderate	Severe
	Consolidation	None	Unclear	Obvious
Subjective evaluation		Mild	Moderate	Severe