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. Author manuscript; available in PMC: 2019 Jan 31.
Published in final edited form as: Physiol Meas. 2018 Jan 31;39(1):014004. doi: 10.1088/1361-6579/aa9d60

Figure 2.

Figure 2

Case 1 (Dataset 1): Effects of a time-lag between pressure and flow on the Zc estimates. (a): Normalized pressure and flow (dimensionless) in the aorta; p+ and p− denote the forward and backward shifted wave by 10 ms. (b): Effect of a 10 ms time shift on the early ejection phase of the pressure-flow loop (in units of mmHg and ml/s), (c)–(d): impedance moduli (mmHg s/ml) and phase spectra (degrees), (e)–(f): effects of time-lag on the resultant Zc values for the aorta and MPA. Zc± correspond to the Zc estimates obtained using p±.