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Fig. 1B. —43-year-old man with suspected bronchiectasis who underwent multidetector CT (MDCT) at lung window settings using different milliamperages. MDCT scans obtained at 170 mA were given score of 5 (A); at 100 mA, score of 4 (B); at 70 mA, score of 4 (C); at 40 mA, score of 3 (D); at 20 mA, score of 2 (E); and at 10 mA, score of 1 (F).