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Figure 1 Representative plots for the measured pressure signal and the filtered signal are depicted by solid and dotted lines, respectively. The difference between the two signals is more prominent at the dicrotic notch segment (A). The region of interest (ROI) (dotted rectangle) for the calculation of pulse transmission coefficient is defined where the change in pressure signal, which is the difference between the measured and the filtered signal (depicted at bottom), is maximum (B). BP = blood pressure.
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