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Fig. 8 —Relationship between plaque CT attenuation values and
stenosis level. CT attenuation values of plaque between three stenotic
levels—that is, 25% (dark gray), 50% (light gray), and
75% (black) (in diameter). Kruskal-Wallis test revealed that CT
attenuation values of plaque were different between stenosis levels: soft
plaque and intracoronary enhancement of 250 H, soft plaque and 350 H,
intermediate plaque and 250 H, and intermediate plaque and 350 H (p
< 0.01).