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Figure 1


Fig. 1A —Transverse CT images are shown for patients having three body sizes in whom different degrees of aortic attenuation were seen (image display window width, 800 H; center, 200 H). 59-year-old woman weighing 55.8 kg and having body mass index (BMI) of 21.1 and body surface area (BSA) of 1.59 m2 (aortic attenuation, 469 H).