Table 3.

Strain, Stiffness, Distensibility, and Elastic Modulus for Both Readers, Mean Differences of Carotid Distensibility Metrics Between Readers, and Correlation Coefficients

Parameter	R1*	R2*	Δ, Paired t Test* (P)	Pearson r (P)
Strain, %	6.8 ± 3.5	8.6 ± 4.5	1.9 ± 4.2 (<.01)	0.46 (<.01)
Stiffness, β	10.5 ± 7.9	8.2 ± 7.2	−1.8 ± 7.1 (<.01)	0.56 (<.01)
Distensibility, 1/β	0.1 ± 0.1	0.2 ± 0.1	0.04 ± 0.1 (<.01)	0.53 (<.01)
Elastic modulus, E	155 ± 123	122 ± 116	−34 ± 108 (<.01)	0.59 (<.01)

^*Values are mean ± standard deviation.