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Figure 1


Fig. 1 —Bar graph shows mean CT attenuation values at initial, middle, and final levels of aorta using our two protocols. Attenuation at final level was lower in protocol 2 (90 kVp, 40 mL of contrast material) (white bars) than in protocol 1 (120 kVp, 100 mL of contrast material) (gray bars), although difference in enhancement was not statistically significant.