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Fig. 1D —6-year-old girl with suspected intraabdominal abscess. Example of image gallery images for 20-kg body weight with tube voltage of 100 kVp, B30f kernel, and 5-mm slice thickness. Computer-simulated images corresponding to A at same level with serial dose reductions to effective tube current–time products of 43 mAs (B), 30 mAs (C), and 21 mAs (D). Increased noise and reduced image quality with decreasing tube current in same patient are evident.