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.