Research Article

New Insights into the Association between Fibrinogen and Coronary Atherosclerotic Plaque Vulnerability: An Intravascular Optical Coherence Tomography Study

Table 2

Coronary angiographic findings and OCT characteristics according to plaque vulnerability.

Ruptured plaque groupNonrupture with TCFA groupNonrupture and non-TCFA groupt/χ2P

ACS-IFC (%)2.2710.321

 No15 (88.2)11 (73.3)108 (88.5)

 Yes2 (11.8)4 (26.7)14 (11.5)

Vasa vasorum1.8260.401

 No16 (94.1)12 (80.0)111 (91.0)

 Yes1 (5.9)3 (20.0)11 (9.0)

Thrombus31.431<0.001

 No4 (23.5)10 (66.7)107 (87.7)

 Yes13 (76.5)5 (33.3)15 (12.3)

Macrophage accumulation32.148<0.001

 03 (17.6)3 (20.0)79 (64.8)

 17 (41.2)7 (46.7)25 (20.5)

 25 (29.4)4 (26.7)18 (14.8)

 31 (5.9)1 (6.7)0 (0.0)

 41 (5.9)0 (0.0)0 (0.0)

MLA(mm2)3.28±1.893.51±2.083.50±1.970.0900.914

NLA(mm2)11.60±3.7310.78±3.0310.19±3.011.7770.173

Rate of stenosis81.12±15.8975.67±13.3572.93±17.141.8700.158

Calcified nodule1.1370.547

 No17 (100.0)15 (100.0)113 (92.6)

 Yes0 (0.0)0 (0.0)9 (7.4)

Target vessel5.8800.208

 LAD10 (58.8)10 (66.7)95 (77.9)

 LCX2 (11.8)3 (20.0)6 (4.9)

 RCA5 (29.4)3 (13.3)21 (17.2)

Lesion length8.45±4.0710.29±3.929.64±3.391.2040.303

Location of target plaque0.8041.000

 Pro11 (64.7)10 (66.7)80 (65.6)

 Mid6 (35.3)5 (33.3)40 (32.8)

 Distal0 (0.0)0 (0.0)2 (1.6)

Values are presented as n (%), or mean ± SD; ACS-IFC: Acute Coronary Syndrome with Intact Fibrous Cap; FCT, fibrous cap thickness; MLA, minimal lumen area; NLA, normal lumen area; Pro, proximal.