Image Artery Walls
It was long promoted (based on angiographic view & assumptions) that ds always produced narrowing despite lots of contradictory data.
By the mid-1980s, with better analysis & checking evidence, it started to become apparent that plaque
stimulated artery enlargements & narrowing was due to clots in the openings triggered by plaque rupture
. Thus look at artery wall & wall thickness, not narrowing.