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Table 2 Analysis of the coronary vessels findings by the conventional and CT angiography

From: An Egyptian study to assess the accuracy and reliability of CAD-RADS CT coronary angiography algorithm in the evaluation of coronary artery disease

  CT angiography Conventional angiography Kappa p value
LMT
 Proximal    1 < 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 46 (96%) 46 (96%)   
  Severe/occluded (CAD-RADS 4–5) 2 (4%) 2 (4%)   
 Mid    1 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 46 (96%) 46 (96%)   
  Severe/occluded (CAD-RADS 4–5) 2 (4%) 2 (4%)   
 Distal    1 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 46 (96%) 46 (96%)   
  Severe/occluded (CAD-RADS 4–5) 2 (4%) 2 (4%)   
LAD
 Proximal    1 < 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 38 (79%) 38 (79%)   
  Severe/occluded (CAD-RADS 4–5) 10 (21%) 10 (21%)   
 Mid    0.842 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 42 (87.5%) 44 (91.5%)   
  Severe/occluded (CAD-RADS 4–5) 6 (12.5%) 4 (8.5%)   
 Distal    0.886 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 48 (100%) 42 (87.5%)   
  Severe/occluded (CAD-RADS 4–5) 0 (0%) 6 (12.5%)   
 D1    0.765 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 48 (100%) 48 (100%)   
  Severe/occluded (CAD-RADS 4–5) 0 (0%) 0 (0%)   
 D2    0.886 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 48 (100%) 48 (100%)   
  Severe/occluded (CAD-RADS 4–5) 0 (0%) 0 (0%)   
LCX
 Proximal    0.838 < 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 44 (91.5%) 46 (96%)   
  Severe/occluded (CAD-RADS 4–5) 4 (8.5%) 2 (4%)   
 Mid    0.846 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 42 (87.5%) 44 (91.5%)   
  Severe/occluded (CAD-RADS 4–5) 6 (12.5%) 4 (8.5%)   
 Distal    1 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 44 (91.5%) 44 (91.5%)   
  Severe/occluded (CAD-RADS 4–5) 4 (8.5%) 4 (8.5%)   
 OM    0.846 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 42 (87.55) 44 (91.5%)   
  Severe/occluded (CAD-RADS 4–5) 6 (12.5%) 4 (8.5%)   
RCA
 Proximal    1 < 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 46 (96%) 46 (96%)   
  Severe/occluded (CAD-RADS 4–5) 2 (4%) 2 (4%)   
 Mid    1 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 42 (87.5%) 42 (87.5%)   
  Severe/occluded (CAD-RADS 4–5) 6 (12.5%) 6 (12.5%)   
 Distal    0.782 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 40 (83%) 40 (83%)   
  Severe/occluded (CAD-RADS 4–5) 8 (17%) 8 (17%)   
 PDA    1 0.001*
  Normal/mild/moderate (CAD-RADS 0–3) 42 (87.5%) 42 (87.5%)   
  Severe/occluded (CAD-RADS 4–5) 6 (12.5%) 6 (12.5%)   
  1. κ: kappa coefficient
  2. *Statistically significant (p < 0.05)