Figure 2
Representative case of lipid and fibrous cap annotations with quantitative measurements: lipid angle and fibrous cap thickness. Green and yellow are lipid and fibrous cap, respectively. The luminal boundary perfectly matches to the lumen boundary, and the abluminal boundary is defined as the inner border of the lipid pool. Lipid annotations were 50 pixels away from the lumen boundary with a ribbon of 20 pixels wide in (r,θ) domain. Colors are green (lipid plaque) and yellow (fibrous cap).
