Skip to main content

Table 2 Optical coherence tomography characteristics

From: Prognostic value of characteristics of plaque combined with residual syntax score among patients with STEMI undergoing primary PCI: an intravascular optical coherence tomography study

Variables

Total (N = 274)

Group = 0 (TCFA absent &Rss ≤ 4)

Group = 1 (TCFA present &Rss ≤ 4)

Group = 2 (TCFA absent &Rss>4)

Group = 3 (TCFA present &Rss>4)

P value

P# for overall

P 0 vs 1

P 0 vs 2

P 0 vs 3

P 1 vs 2

P 1 vs 3

P 2 vs 3

Plaque morphology

< 0.001*

0.007*

0.940

< 0.001*

0.161

0.953

< 0.001*

 Plaque rupture[%(n)]

155 (56.6)

46 (42.6)

24 (75)

51 (52.6)

34 (91.9)

       

 Intact fibrous cap[%(n)]

119 (43.4)

62 (57.4)

8 (25)

46 (47.4)

3 (8.1)

       

Lipid-rich plaque[%(n)]

141 (51.5)

40 (37)

25 (78.1)

42 (43.3)

34 (91.9)

< 0.001*

<  0.001 *

1.000

<  0.001 *

0.004*

1.000

<  0.001 *

Fibrous plaque[%(n)]

78 (28.5)

38 (35.2)

2 (6.2)

36 (37.1)

2 (5.4)

< 0.001*

0.009*

1.000

0.003*

0.005*

1.000

0.002*

Mixed plaque [%(n)]

60 (21.9)

32 (29.6)

4 (12.5)

23 (23.7)

1 (2.7)

0.004*

0.240

1.000

0.004*

1.000

1.000

0.052

Healing plaque[%(n)]

55 (20.1)

15 (13.9)

6 (18.8)

26 (26.8)

8 (21.6)

0.145

      

Calcification[%(n)]

140 (51.1)

48 (44.4)

17 (53.1)

54 (55.7)

21 (56.8)

0.354

      

Micro-calcification[%(n)]

136 (49.6)

47 (43.5)

17 (53.1)

52 (53.6)

20 (54.1)

0.445

      

Macrophage[%(n)]

149 (54.4)

44 (40.7)

31 (96.9)

39 (40.2)

35 (94.6)

< 0.001*

<  0.001 *

1.000

<  0.001 *

<  0.001*

1.000

<  0.001 *

Microvessels[%(n)]

48 (17.5)

20 (18.5)

9 (28.1)

13 (13.4)

6 (16.2)

0.290

      

Cholesterol crystal[%(n)]

22 (8.0)

7 (6.5)

3 (9.4)

7 (7.2)

5 (13.5)

0.520

      

Thrombus[%(n)]

271 (98.9)

106 (98.1)

32 (100)

96 (99)

37 (100)

1.000

      

Minimal FCT, um

100.0 (60.0, 120.0)

100.0 (90.0, 150.0)

60.0 (50.0, 60.0)

110.0 (90.0, 140.0)

60.0 (50.0, 60.0)

< 0.001*

<  0.001 *

1.000

<  0.001 *

<  0.001 *

1.000

<  0.001 *

Maximal lipid arc, °

360.0 (248.0, 360.0)

360.0 (242.0, 360.0)

360.0 (360.0, 360.0)

293.0 (230.0, 360.0)

360.0 (360.0, 360.0)

< 0.001*

0.031*

1.000

0.005*

0.001*

1.000

< 0.001*

MLA, mm2

1.7 (1.4, 2.2)

1.6 (1.4, 2.2)

2.0 (1.6, 2.7)

1.6 (1.3, 2.1)

1.9 (1.6, 2.3)

0.022*

0.088

1.000

0.742

0.043*

1.000

0.418

  1. Continuous data are presented as median (interquartile range). Categorical variables are presented as number (%)
  2. TCFA thin-cap fibroatheroma, rSS, residual syntax score, FCT fibrous cap thickness, MLA minimal lumen area
  3. *P < 0.05, # P for overall means statistical analysis among four groups