Fig. 2.

Cross section of modeled tissue volumes at plane $Z=0\mathrm{mm}$. (a) Diffuse and (b) confined represent vulnerable plaques, with large lipid pools and thin caps. (c) Stable represents a stable plaque with a modest lipid pool and a thick cap. (d) Streaks represent a healthy artery with minimal lipid pool. Legend on the right denotes tissue types. Dashed line denotes location where light penetration analysis (Fig. 6) was completed.