Table 6:

Absolute differences in ESS metrics as measured by IVUS versus the different CCTA imaging methods.

CCTA Method	Mean Difference (Pa)	p- value
Average ESS
All CCTA	−0.66 Pa	<0.0001
256-Slice	−0.37 Pa	0.006
64-Slice	−0.95 Pa	0.002
Minimal ESS
All CCTA	−0.49 Pa	<0.0001
256-Slice	−0.23 Pa	0.032
64-Slice	−0.75 Pa	0.004
Maximal ESS
All CCTA	−0.84 Pa	<0.0001
256-Slice	−0.52 Pa	<0.0001
64-Slice	−1.1 Pa	0.001

CCTA= coronary computed tomography angiography, Avg ESS=average endothelial shear stress, Min ESS= minimal endothelial shear stress, Max ESS= maximal endothelial shear stress,