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Egyptian Journal of Radiology and Nuclear Medicine

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

 

Total

Unstable 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
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