Table 4.
Lesion classification and characteristics.
| Angiographic Findings | LMCA N (%) |
LAD N (%) |
RCA N (%) |
LCX N (%) |
Ramus N (%) |
Total N (%) |
|
|---|---|---|---|---|---|---|---|
| ACC/AHA Lesion Type | Type A | 4 (15.4) |
138 (28.6) |
103 (27.2) |
61 (19.3) |
11 (34.4) |
317 (25.2) |
| Type B | 21 (80.8) |
240 (49.8) |
205 (54.1) |
173 (54.7) |
16 (50.0) |
657 (52.3) |
|
| Type C | 1 (3.8) |
104 (21.6) |
71 (18.7) |
82 (26.0) |
5 (15.6) |
282 (22.5) |
|
| Lesion Characteristics | Ostial Stenosis | 10 (38.5) |
43 (8.9) |
26 (6.9) |
32 (10.1) |
4 (12.5) |
115 (9.2) |
| Bifurcation Stenosis | 16 (61.5) |
118 (24.5) |
56 (14.8) |
69 (21.8) |
2 (6.3) |
261 (20.8) |
|
| Calcification | 7 (26.9) |
15 (3.1) |
10 (2.6) |
9 (2.9) |
1 (3.1) |
42 (3.3) |
|
| Chronic Total Occlusion | 0 (0.0) |
35 (7.3) |
20 (5.3) |
14 (4.4) |
0 (0.0) |
69 (5.5) |
|
| Moderate-Excessive Tortuosity | 0 (0.0) |
47 (9.8) |
54 (14.3) |
43 (13.6) |
0 (0.0) |
144 (11.5) |
|
| Thrombus | 2 (7.7) |
76 (15.8) |
92 (24.3) |
23 (7.3) |
0 (0.0) |
193 (15.4) |
|
| Eccentricity | 12 (46.2) |
261 (54.1) |
193 (50.9) |
172 (54.4) |
15 (46.9) |
653 (52.0) |
|
| Irregular Contour | 5 (19.2) |
137 (28.4) |
161 (42.5) |
65 (20.6) |
7 (21.9) |
375 (29.9) |
|
| Diffuse/Small vessel disease | 0 (0.0) |
23 (4.8) |
17 (4.5) |
31 (9.8) |
1 (3.1) |
72 (5.7) |
|
| Bypass graft lesions | – | – | – | – | – | 21 (1.7) |
|
Note: ACC,American College of Cardiology; AHA,American Heart Association; LMCA,Left Main Coronary Artery; LAD,Left Anterior Descending Artery; LCX,Left Circumflex Artery; RCA,Right Coronary Artery; N,Number; %,Percentage.