Fig. 4

Relationship between high-risk plaque features and plaque to myocardium ratio (PMR) in ACS. High-risk plaque features such as plaque rupture (P = 0.003), thrombus (P = 0.037) and intimal vasculature (P = 0.031) were associated with significantly higher PMR; no significant differences were found in other plaque features including the presence of TCFA (P = 0.625), lipid-rich plaques (P = 0.771), absence of calcification (P = 0.706) and macrophage infiltration (P = 0.498)