Significance level of the interaction term in Eq 1.

Statistical significance (bold text, p < 0.01), confirms a dependence of the area under the PSD curve within the specified frequency range on the level of flow. This indicates the frequency bands containing relevant information for stenosis detection. Data are given for pressure measurements up- (CCA) and downstream (ICA) of the stenosis, and for LDV measurements up- (bifurcation) and downstream (ICA). Data shown are for the compliant model; all measurements with pressure catheter present.