How it Works

This page describes the technical details of how the PulseAnalyse tool works.

How it Works

PulseAnalyse performs several steps to analyse arterial pulse waves, as follows. Click on the links to find out more about each step.

0. Setup

1. Beat Detection

2. Signal Quality Assessment

3. Filtering

4. Calibration

5. Transforming to a Central Pressure Signal

6. Calculate Average Pulse Wave

7. Calculate Derivatives

8. Identify Fiducial Points

9. Calculate Pulse Wave Indices

10. Make plots

Further details on each of these steps are now provided.

Setup

The most notable step taken during the setup is to determine whether a single pulse wave, or multiple pulse waves, have been provided as an input. If the duration of the input signal is less than 2.5 seconds, then it is assumed that it contains a single pulse wave. If it is more than 2.5 seconds, then it is assumed that it contains multiple pulse waves.

Input Signal Duration	Assumed nature of signal
<= 2.5 secs	single pulse wave
> 2.5 secs	multiple pulse waves

Beat Detection

Signal Quality Assessment

Filtering

Calibration

Transforming to a Central Pressure Signal

Calculate Average Pulse Wave

Calculate Derivatives

Identify Fiducial Points

Calculate Pulse Wave Indices

Make plots