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Fig. 3 | BioMedical Engineering OnLine

Fig. 3

From: Improved pressure contour analysis for estimating cardiac stroke volume using pulse wave velocity measurement

Fig. 3

Detected maximum negative gradient point (blue +) and detected end systolic point using the modified function (red x) on a single beat pressure waveform. Top panel measured pressure waveform having multiple descending inflection points. Second panel pressure gradient dP measured /dt and detected global minimum, shown as blue cross. Third panel weight function WF(t) applied to dP measured /dt. Bottom panel modified function showing product of dP measured /dt and WF(t), where the red cross shows the identified location of the end systolic point

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