Robust ballistocardiogram acquisition for home monitoring

O. T. Inan, M. Etemadi, R. M. Wiard, L. Giovangrandi, G. T A Kovacs

Research output: Contribution to journalArticlepeer-review

158 Scopus citations

Abstract

The ballistocardiogram (BCG) measures the reaction of the body to cardiac ejection forces, and is an effective, non-invasive means of evaluating cardiovascular function. A simple, robust method is presented for acquiring high-quality, repeatable BCG signals from a modified, commercially available scale. The measured BCG waveforms for all subjects qualitatively matched values in the existing literature and physiologic expectations in terms of timing and IJ amplitude. Additionally, the BCG IJ amplitude was shown to be correlated with diastolic filling time for a subject with premature atrial contractions, demonstrating the sensitivity of the apparatus to beat-by-beat hemodynamic changes. The signal-to-noise ratio (SNR) of the BCG was estimated using two methods, and the average SNR over all subjects was greater than 12 for both estimates. The BCG measurement was shown to be repeatable over 50 recordings taken from the same subject over a three week period. This approach could allow patients at home to monitor trends in cardiovascular health.

Original languageEnglish (US)
Pages (from-to)169-185
Number of pages17
JournalPhysiological Measurement
Volume30
Issue number2
DOIs
StatePublished - Apr 8 2009

Keywords

  • Ballistocardiogram
  • heart failure management
  • heart monitoring
  • home monitoring

ASJC Scopus subject areas

  • Biophysics
  • Physiology
  • Biomedical Engineering
  • Physiology (medical)

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