Figure 1.

Plethysmograph Estimate of Pulsus Paradoxus Calculation. 1) AUC is calculated for each cardiac cycle from plethysmograph waveform. 2) ΔAUC is calculated for each successive 3-sec interval. 3) PEP is 180-sec moving average of ΔAUC.

Arnold et al. BMC Pulmonary Medicine 2010 10:17   doi:10.1186/1471-2466-10-17
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