Table 2.
Frequency of Plaque Characteristics in Each of the 15 Coronary Artery Segments
| Adverse Plaque∗ | Positive Remodeling | Low-Attenuation Plaque | Spotty Calcification | Napkin Ring Sign | |
|---|---|---|---|---|---|
| Left main stem | 60 (3.4) | 59 (3.3) | 12 (0.7) | 13 (0.7) | 5 (0.3) |
| Prox LAD | 388 (21.9) | 385 (21.8) | 78 (4.4) | 117 (6.6) | 33 (1.9) |
| Mid LAD | 234 (13.2) | 224 (12.7) | 50 (2.8) | 84 (4.7) | 13 (0.7) |
| Dist LAD | 21 (1.2) | 19 (1.1) | 5 (0.3) | 14 (0.8) | 1 (0.1) |
| D1 | 19 (1.1) | 19 (1.1) | 1 (0.1) | 20 (1.1) | 1 (0.1) |
| D2 | 5 (0.3) | 5 (0.3) | 0 (0.0) | 8 (0.5) | 0 (0.0) |
| Prox Cx | 109 (6.2) | 106 (6.0) | 18 (1.0) | 39 (2.2) | 6 (0.3) |
| OM1 | 27 (1.5) | 26 (1.5) | 4 (0.2) | 13 (0.7) | 1 (0.1) |
| AV Cx | 11 (0.6) | 11 (0.6) | 1 (0.1) | 4 (0.2) | 1 (0.1) |
| OM 2 | 1 (0.1) | 1 (0.1) | 0 (0.0) | 2 (0.1) | 0 (0.0) |
| Mid dist Cx | 5 (0.3) | 5 (0.3) | 0 (0.0) | 1 (0.1) | 0 (0.0) |
| Prox RCA | 116 (6.6) | 112 (6.3) | 20 (1.1) | 56 (3.2) | 6 (0.3) |
| Mid RCA | 132 (7.5) | 130 (7.3) | 19 (1.1) | 63 (3.6) | 10 (0.6) |
| Distal RCA | 51 (2.9) | 51 (2.9) | 4 (0.2) | 25 (1.4) | 1 (0.1) |
| RCA/CX PD | 10 (0.6) | 10 (0.6) | 1 (0.1) | 13 (0.7) | 0 (0.0) |
| Per-vessel analysis† | |||||
| LAD | 527 (29.8) | 517 (29.2) | 129 (7.3) | 203 (11.5) | 52 (2.9) |
| LCX | 139 (7.9) | 137 (7.7) | 22 (1.2) | 52 (2.9) | 8 (0.5) |
| RCA | 222 (12.5) | 219 (12.4) | 41 (2.3) | 112 (6.3) | 16 (0.9) |
Values are n (%).
AV = atrioventricular; Cx = circumflex; D1 = first diagonal; D2 = second diagonal; LAD = left anterior descending; LM = left main; OM1 = obtuse marginal; PD = posterior descending; Prox = proximal; RCA = right coronary artery.
∗
Positive remodeling or low-attenuation plaque.
†
1 or more plaque features per-vessel.