Figure 3
From: Validity and repeatability of the Vicorder apparatus: a comparison with the SphygmoCor device

SphygmoCor and Vicorder carotid to femoral transit time (a) and aPWV (b) calculated with distances measured by manufacturer specifications. The dotted line represents unity, the dashed line linear regression, and the solid line quadratic regression. Table 2 reports r and P-values. Plots (c) and (d) show the corresponding measurement agreement in Bland–Altman plots.