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Detection of body position changes using the surface electrocardiogram

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Author

Summary, in English

A method for detecting body position changes that uses the surface vectorcardiogram (VCG) is presented. Such changes are often manifested as sudden shifts in the electrical axis of the heart and can erroneously be interpreted as acute ischaemic events. Axis shifts were detected by analysing the rotation angles obtained from the alignment of successive VCG loops to a reference loop. Following the rejection of angles originating from noise events, the detection of body position changes was performed on the angle series using a Bayesian approach. On a database of ECG recordings from normal subjects performing a predefined sequence of body position changes, a detection rate of 92% and a false alarm rate of 7% was achieved.

Publishing year

2003

Language

English

Pages

164-171

Publication/Series

Medical & Biological Engineering & Computing

Volume

41

Issue

2

Document type

Journal article

Publisher

Springer

Topic

  • Other Medical Engineering

Keywords

  • rotation angles
  • VCG loops
  • loop alignment
  • body position
  • ischaemia monitoring

Status

Published

Research group

  • Signal Processing

ISBN/ISSN/Other

  • ISSN: 0140-0118