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bibliography: zettel.bib csl: ieee.csl nocite: |

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WFDB Record

Date: Tue 10 Mar 2020 06:15:25 AM UTC

Summary: Overview of the Waveform Database (WFDB) record format

Keywords: ##summary #wfdb #dataformat #storage #healthcare #opensource #standard

Note Linked To:

The Technology Index

• Summary: This index is a compilation of utilities and resources when working with any sort of technology.

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Overview:

The Waveform Database (WFDB) Library is a record management system to handle already existing databases - it itself is not a database but a collection of tools to handle databases that follow the WFDB format. [@moodyWFDBProgrammerGuide2019] Furthermore, WFDB can be used for viewing, analyzing, and creating recordings of physiological signals [@garciamartinezLoadingPlottingFiltering2017].

How It Works:

The way that the WFDB record format works is that it utilizes [@moodyWFDBProgrammerGuide2019]:

• Header Files to specify the characteristics of a signal (sampling frequency, etc.)
• Annotation Files to record annotations corresponding to a signal (generally kept in time with the rest of the signal)

Example Application - ECG Data:

For example, when working with ECG data, the format utilizes the header and annotation files as follows [@moodyWFDBProgrammerGuide2019]:

• Header Files - could contain information about lead count, calibration format, etc.
• Annotation Files - could contain other information such as beat positions.

Miscellaneous Notes:

• WFDB is considered a standard data format within the research world, and has found application in industry as well.
• The WFDB format is generally used for ECG records - however, it can extend to other data formats.
• A possible alternative to the WFDB record format is the European Data Format+ (EDF+) [@garciamartinezLoadingPlottingFiltering2017].

References:

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