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Fig. 1A. —3-month-old female infant with bronchopulmonary dysplasia. High-resolution CT scans of chest obtained with 50 mAs (A) (average image quality score, 2.36) and with 180 mAs (B) (average image quality score, 2.57) reveal no significant difference in image quality between A and B. Interstitial thickening and areas of hyperlucent lung (arrows) producing pseudocystic appearance are clearly visible on both images.