European Radiology Experimental

Table 1 Spearman’s ρ and maximum WT for the agreement between the predicted WT maps and the original WT maps based the individual maps on the cohort-averaged maps

From: Spatial correlations between MRI-derived wall shear stress and vessel wall thickness in the carotid bifurcation

Prediction model	Quantification method	Individual maps	Cohort-averaged maps
Total model	Spearman ρ	0.39 ± 0.15 p < 0.001	0.21 ± 0.22 p < 0.001
Total model	Maximum WT (mm)	1.7 ± 0.4	2.1 ± 0.3
WSS only	Spearman ρ	0.25 ± 0.16 p < 0.001	0.24 ± 0.18 p < 0.001
WSS only	Maximum WT (mm)	1.4 ± 0.2	1.7 ± 0.0
Diameter only	Spearman ρ	0.22 ± 0.18 p < 0.001	0.07 ± 0.28 p = 0.413
Diameter only	Maximum WT (mm)	1.5 ± 0.4	1.4 ± 0.1
Interaction term: WSS*D only	Spearman ρ	0.25 ± 0.14 p < 0.001	0.22 ± 0.18 p < 0.001
Interaction term: WSS*D only	Maximum WT (mm)	1.4 ± 0.3	1.6 ± 0.0

All p values calculated as Student’s t-test after the Fisher z-transformation to determine significant difference with 0. p values lower than 0.05 were considered as significant. WT wall thickness, WSS wall shear stress, D diameter

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