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Fig. 5B —7-year-old 25-kg girl with splenic rupture. Both images were
rated good diagnostic quality. Clinical abdominal MDCT scan corresponding to
A obtained with true tube current shows splenic rupture
(arrow). Mean image noise, 9.2 H; volume CT dose index, 5.8 mGy;
effective dose, 2.6 mSv; 37% dose reduction compared with previously
recommended weight-adapted standard pediatric protocol.