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Table 3 Plaque characteristics a NWI =normalized wall index

From: Computed tomography angiography vs 3 T black-blood cardiovascular magnetic resonance for identification of symptomatic carotid plaques

  Symptomatic side Asymptomatic side P-value
Vessel Stenosis    
< 50% [N(%)] 0 10 (50%) <0.001
50 - 69% [N(%)] 8 (40%) 3 (15%) 0.16
70 - 99% [N(%)] 12 (60%) 7 (35%) 0.21
Qualitative CMR Plaque Characteristics   
AHA Lesion Type VI [N(%)] 16 (80%) 4 (20%) <0.001
Thin/ruptured fibrous cap [N(%)] 12 (60%) 1 (5%) <0.001
Intraplaque hemorrhage [N(%)] 9 (45%) 4 (20%) n.s.
Juxtaluminal hemorrhage / thrombus [N(%)] 6 (30%) 1 (5%) n.s.
Quantitative CMR Plaque Characteristics   
Mean lumen area [mm2] 6.5 ±4.3 10.8 ±7.5 0.05
Mean wall area [mm2] 72.2 ±28.3 64.6 ±20.9 0.17
Mean total vessel area [mm2] 111.1 ±43.4 102.3 ±36.4 0.27
NWIa 0.88 ±0.07 0.78 ±0.11 0.008
Lipid rich necrotic core [%] 24.5 ±12.9 14.5 ±14 0.08
Calcification [%] 3.6 ±5.2 7.3 ±6.3 0.03
Intraplaque hemorrhage [%] 11.4 ±17 2.1 ±4.5 0.03
MDCTA b Characteristics    
Plaque Type    
Non-calcified [N(%)] 12 (60%) 7 (35%) n.s.
Mixed [N(%)] 5 (25%) 10 (50%) n.s.
Calcified [N(%)] 3 (15%) 3 (15%) n.s.
CT Calcification Volume [mm3] 0.082 0.0735 n.s.
  1. b MDCTA =multi detector computed tomography angiography.