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Table 2 Comparison of carotid plaque features between patients with and without ACI

From: Size of carotid artery intraplaque hemorrhage and acute ischemic stroke: a cardiovascular magnetic resonance Chinese atherosclerosis risk evaluation study

  Mean ± SD, or n (%) p
Patients with ACI (n = 196) Patients without ACI (n = 491)
Plaque morphology
 Lumen area, mm2 45.3 ± 15.2 44.4 ± 14.9 0.443
 Wall area, mm2 35.4 ± 11.6 32.5 ± 11.0 0.002
 Total vessel area, mm2 80.7 ± 19.5 77.0 ± 20.7 0.016
 Mean wall thickness, mm 1.3 ± 0.5 1.2 ± 0.4 0.007
 Normalized wall index, % 44.2 ± 10.7 42.6 ± 9.3 0.122
 Luminal stenosis, % 26.4 ± 40.0 16.1 ± 27.5 0.058
a Plaque volume, mm3 722.5 ± 475.3 667.3 ± 426.9 0.320
Presence of plaque compositions
 Calcification 101 (51.5) 247 (50.3) 0.772
 Fibrous cap rupture 18 (9.2) 40 (8.1) 0.659
 LRNC 148 (75.5) 380 (77.4) 0.597
 All IPH 42 (21.4) 76 (15.5) 0.062
 Fresh IPH 22 (11.2) 38 (0.8) 0.804
 Recent IPH 8 (0.4) 23 (0.5) 0.185
 Both two types of IPH 12 (0.6) 15 (0.3) 0.274
b Size of plaque compositions
 Volume of calcification, mm3 37.1 ± 76.2 38.7 ± 51.8 0.194
 % calcification volume, % 3.3 ± 4.2 4.0 ± 4.0 0.046
 Volume of LRNC, mm3 166.5 ± 243.9 113.4 ± 153.7 0.083
 % LRNC volume, % 14.9 ± 14.2 12.1 ± 11.1 0.105
 Volume of IPH, mm3 164.9 ± 200.5 71.4 ± 67.7 0.006
 % IPH volume, % 12.1 ± 10.5 7.0 ± 5.9 0.014
  1. LRNC lipid-rich necrotic core, IPH intraplaque hemorrhage. a The value was calculated from the arterial slices with atherosclerotic plaque. b The value was included from the arterial slices with the corresponding plaque composition, respectively