Skip to main content

Table 2 Angiographic and intravascular ultrasound characteristics

From: Relationship among coronary plaque compliance, coronary risk factors and tissue characteristics evaluated by integrated backscatter intravascular ultrasound

  Arc of calc ≤10° 10° < Arc of calc ≤60° p value
  (n = 36) (n = 22)  
Angiographic stenosis, % 43.9 ± 6.9 41.0 ± 5.6 0.092
Systolic vessel volume, mm3 15.0 ± 3.8 13.0 ± 3.7 0.054
Systolic lumen volume, mm3 5.7 ± 1.5 5.1 ± 2.0 0.19
Systolic plaque volume, mm3 9.2 ± 3.0 7.9 ± 2.4 0.069
Diastolic vessel volume, mm3 14.1 ± 3.6 12.5 ± 3.8 0.11
Diastolic lumen volume, mm3 5.1 ± 1.6 4.8 ± 1.9 0.44
Diastolic plaque volume, mm3 9.0 ± 2.9 7.7 ± 2.5 0.095
Plaque burden, % 61.3 ± 7.9 61.4 ± 9.4 0.97
Eccentricity rate 0.68 ± 0.14 0.53 ± 0.18 0.003
Remodeling index 0.98 ± 0.12 0.97 ± 0.08 0.51
Relative lipid volume, % 44.2 ± 12.8 46.2 ± 14.5 0.58
Relative fibrous volume, % 55.6 ± 12.8 51.3 ± 14.0 0.23
Relative calcification volume, % 0.22 ± 0.18 2.50 ± 1.79 <0.001
EEMV compliance, %/10 mmHg 1.01 ± 0.85 0.58 ± 0.54 0.037
LV compliance, %/10 mmHg 1.86 ± 1.71 0.76 ± 0.87 0.007
PA response, %/10 mmHg 0.95 ± 2.28 0.51 ± 0.95 0.39
EEM area stiffness index 22.3 ± 22.9 32.6 ± 26.8 0.12
  1. Values are mean ± SD. Calc: calcification, EEMV: external elastic membrane volume, LV: lumen volume, PA: plaque area.