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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 ± 13.536.5 ± 12.4.555
Mean wall area (mm2)48.3 ± 14.941.5 ± 11.1.028
Mean total vessel area (mm2)83.8 ± 20.678.0 ± 18.6.172
Mean wall thickness (mm)1.9 ± 0.61.6 ± 0.4.010
Mean normalized wall index (%)57.9 ± 11.353.6 ± 9.1.087
Total luminal occlusion21 (52.5%)11 (15.9%)<.001
Plaque volume (mm2)1240.7 ± 535.21064.4 ± 414.1.159
Presence of calcification33 (82.5)60 (87.0).526
Presence of FCR14 (35.0)23 (33.3).859
Volume of calcification (mm3)b35.8 (12.4–87.3)36.2 (15.8–79.6).794
Percentage calcification volume (%)b3.1 (1.3–6.4)3.5 (1.9–7.7).312
Volume of LRNC (mm3)b312.7 (174.1–625.3)227.7 (122.1–351.4).038
Percentage LRNC volume (%)b29.4 (17.9–42.1)23.6 (14.0–34.0).039
Volume of IPH (mm3)b93.2 (31.4–201.2)56.4 (21.9–104.9).016
Percentage IPH volume (%)b7.9 (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.