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Using the Pulse Wave Database
The Pulse Wave Database (PWDB) is a valuable resource for research into haemodynamics and PW indices. The background to the PWDB, and the methods used to create it, are described in Sections 1 and 2 of this article. This page provides technical information on how to use the database in research.
The database is available here. It is available in three formats:
- Matlab ®
- Comma-Separated Value (CSV)
- WaveForm Database (WFDB) format
If you use Matlab ® in your research then I would advise beginning with the Matlab ® format of the database. This provides the data in one single (albeit large) file, and is the format used by the example Matlab ® scripts.
The database is provided in the following files. Follow the links to find out more about the contents of each file:
- pwdb_data.mat: all the important data in a single Matlab ® file.
- pwdb_data_w_aorta_######_paths.mat: a Matlab ® file containing pulse waves every 4cm from the aortic root to: (i) the finger; (ii) the foot; (iii) the brain.
- pwdb_haemod_params.csv: A spreadsheet containing haemodynamic parameters measured from each subject's pulse waves
- pwdb_model_configs.csv: A spreadsheet containing the prescribed model input values
- pwdb_model_variations.csv: A spreadsheet containing the prescribed variations in model input parameters.
- pwdb_onset_times.csv: A spreadsheet containing the pulse onset times for each pulse wave.
- pwdb_pw_indices.csv: A spreadsheet containing pulse wave indices extracted from the simulated pulse waves.
- geo: A directory containing files which detail the geometry of each virtual subject (i.e. details such as arterial diameters and lengths).
- PWs: A directory containing PWs at the most common measurement sites in the three different formats.
If you are looking for an easy way to start using the database then the case studies provided in this article might be appropriate. These case studies demonstrate the two key uses of the database, either obtaining further insight into haemodynamics, or assessing pulse wave indices.
Each case study is accompanied by a Matlab ® script, which reproduces the analysis presented in the article. You may find it helpful to re-run one of the case studies to gain a quick understanding of how the data can be used in research. Instructions for running the scripts are provided here.
Part of the wider Pulse Wave Database Project