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CCTA based plaque characteristics associated with high-risk plaque on multiplanar reconstruction and corresponding and short-axis en face axial view. (A) Positive remodeling (red arrows) characterized by remodeling index (reference vessel size/stenosis vessel size) ≥1.1. (B) Spotty calcification (red arrows) characterized by calcification <3 mm. (C) Low attenuation plaque (red arrows) characterized by <30 HUs.
CCTA = coronary computed tomography angiography; HU = Hounsfield unit.
