Table 5.

Comparison of Categories of ESS by Per-segment Analysis Coronary CT Angiography vs Intravascular Ultrasound

Values are presented as n and (%) for categorical variables. n= number of analyzed segments, CCTA= coronary computed tomography angiography, IVUS=intravascular ultrasound, Min ESS= minimal endothelial shear stress, Max ESS= maximal endothelial shear stress, Avg ESS=average endothelial shear stress. L=low shear stress i.e. <1.0 Pa, Physio= physiologic shear stress i.e. 1.0 –2.5 Pa, High=high endothelial shear stress i.e. 2.5–5.0 Pa, Higher=higher endothelial shear stress i.e. 5.0 –7.0 Pa, Very H= very high endothelial shear stress i.e. >7 Pa.

Agreement for average ESS, kappa=0.25, p<0.0001, Agreement for min ESS, kappa=0.20, p<0.0001, Agreement for max ESS, kappa=0.22, p<0.0001,