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Table 4 Characterization of non-calcified plaque as regard plaque attenuation of both studied patient groups

From: High risk plaque criteria by multislice coronary CT angiography in patients with stable vs. unstable coronary artery disease: analytic cross-sectional study

 TotalUnstable group
(n = 36)
Stable group
(n = 22)
Test of sig.
CT density (HU)
Quantitative analysis (QA)
Area ROI
36.2 ± 31.3
71.96±30.35
23.8 ± 22.7
35.12 ± 22.7
48.6 ± 48
108.8 ± 42
<0.001*a
<0.001*a
LAP < 30 (QA) n, %3 (5.6%)2 (5.5%)1 (4%)FEP = 0.922b
LAP < 60 (QA) n, %32 (55%)29 (80.5%)3 (13.6%)<0.001*b
LAP < 90 (QA) n, %11 (18.3%)4 (11.1%)7 (31.8%)<0.001*b
  1. HU Hounsfield unit, LAP low attenuation plaque
  2. at test
  3. bX2 test