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Fig. 3 | BioMedical Engineering OnLine

Fig. 3

From: Novel blood pressure and pulse pressure estimation based on pulse transit time and stroke volume approximation

Fig. 3

Correlation plots and Bland–Altman plots for PP estimation during static squatting exercise. a Reference PP plotted against estimated PP using the proposed method (R = 0.927). b Reference PP plotted against estimated PP using the PTT-based method (R = 0.851). c Bland–Altman plot of the estimated PP using the proposed method with mean difference marked in solid red line and ± 1.96 SD marked in dashed black lines. d Bland–Altman plot of the estimated PP using the PTT-based method with mean difference marked in solid red line and ± 1.96 SD marked in dashed black lines. PP pulse pressure, PEP pre-ejection period, PTT pulse transit time, SD standard deviation

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