Fig. 2

Schematic diagram of quantitative coronary plaque analysis. After a landmark in the ascending aorta is placed, coronary centerlines generation automatically (a red and light purple lines). A surface reconstruction image of the target vessel is automatically generated (b), and the stenosis marker and lesion range are defined on the surface reconstruction images. After the plaque quantitative analysis is completed, different plaque components are marked with colors (c, yellow for calcified plaque, orange for non-calcified plaque, and red for low-density non-calcified plaque)