Figure 1.

Low-Attenuation Plaque Progression on CCTA in a Patient With Low Lp(a)

Coronary computed tomography angiography (CCTA) of a patient with low serum lipoprotein(a) [Lp(a)] concentration (9.2 mg/dL) showing atherosclerotic plaque in the left circumflex artery (A and C) with evidence of mixed plaque on automated plaque assessment (red overlay). Low-attenuation plaque is visualized in bright orange on the 3-dimensional reconstruction (B and D) and does not appear to progress on serial scanning (baseline volume 18.6 mm³, 1-year volume 17.8 mm³).