Erschienen in:
11.06.2020 | Original Research
A new approach to complicated and noisy physiological waveforms analysis: peripheral venous pressure waveform as an example
verfasst von:
Hau-Tieng Wu, Aymen Alian, Kirk Shelley
Erschienen in:
Journal of Clinical Monitoring and Computing
|
Ausgabe 3/2021
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Abstract
We introduce a recently developed nonlinear-type time–frequency analysis tool, synchrosqueezing transform (SST), to quantify complicated and noisy physiological waveform that has time-varying amplitude and frequency. We apply it to analyze a peripheral venous pressure (PVP) signal recorded during a seven hours aortic valve replacement procedure. In addition to showing the captured dynamics, we also quantify how accurately we can estimate the instantaneous heart rate from the PVP signal.