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Fig. 1 —Bar graph shows aortic enhancement during hepatic arterial
phase obtained with three different contrast injection protocols. Aortic
enhancement values (mean ± SD) in protocols A, B, and C were 224.5
± 50.3, 264.4 ± 47.3, and 291.0 ± 42.7 H, respectively.
There was a statistically significant difference between protocols A and B
(p < 0.01), A and C (p < 0.01), and B and C
(p = 0.02).
