Table 3:
Comparison of carotid plaque morphologic and compositional characteristics between patients with and without ipsilateral ACI lesions
| Mean ± SD. (No.) (%) or Median (25–75 Percentiles) |
P Valuea | ||
|---|---|---|---|
| Patients with ACI (n = 40) | Patients without ACI (n = 69) | ||
| Mean lumen area (mm2) | 35.5 ± 13.5 | 36.5 ± 12.4 | .555 |
| Mean wall area (mm2) | 48.3 ± 14.9 | 41.5 ± 11.1 | .028 |
| Mean total vessel area (mm2) | 83.8 ± 20.6 | 78.0 ± 18.6 | .172 |
| Mean wall thickness (mm) | 1.9 ± 0.6 | 1.6 ± 0.4 | .010 |
| Mean normalized wall index (%) | 57.9 ± 11.3 | 53.6 ± 9.1 | .087 |
| Total luminal occlusion | 21 (52.5%) | 11 (15.9%) | <.001 |
| Plaque volume (mm2) | 1240.7 ± 535.2 | 1064.4 ± 414.1 | .159 |
| Presence of calcification | 33 (82.5) | 60 (87.0) | .526 |
| Presence of FCR | 14 (35.0) | 23 (33.3) | .859 |
| Volume of calcification (mm3)b | 35.8 (12.4–87.3) | 36.2 (15.8–79.6) | .794 |
| Percentage calcification volume (%)b | 3.1 (1.3–6.4) | 3.5 (1.9–7.7) | .312 |
| Volume of LRNC (mm3)b | 312.7 (174.1–625.3) | 227.7 (122.1–351.4) | .038 |
| Percentage LRNC volume (%)b | 29.4 (17.9–42.1) | 23.6 (14.0–34.0) | .039 |
| Volume of IPH (mm3)b | 93.2 (31.4–201.2) | 56.4 (21.9–104.9) | .016 |
| Percentage IPH volume (%)b | 7.9 (3.0–17.0) | 5.4 (2.5–10.1) | .074 |
| IPH length (mm) | 12.0 (4.5–17.5) | 10.0 (4.0–14.0) | .101 |
Note:—FCR indicates fibrous cap rupture.
a
P values are based on the Mann-Whitney U test or Fisher exact test between patients with and without ipsilateral ACI lesions.
b
Only patients with the corresponding component present were included in the comparison.