A new approach to complicated and noisy physiological waveforms analysis: peripheral venous pressure waveform as an example

AbstractWe 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.
Source: Journal of Clinical Monitoring and Computing - Category: Information Technology Source Type: research