Fig. 9From: Blood speckle imaging compared with conventional Doppler ultrasound for transvalvular pressure drop estimation in an aortic flow phantomBland–Altman plots illustrating the agreement between A ground-truth B Doppler and C Blood Speckle Imaging estimations of pressure drop across two days of experiments (n = 16). The solid line represents the bias within the methods, while the 95% limits of agreement (± 1.96 standard deviation) are represented by the dashed linesBack to article page