Extraction of the magnetohydrodynamic blood flow potential from the surface electrocardiogram in magnetic resonance imaging

Grace M. Nijm, Steven Swiryn, Andrew C. Larson, Alan V. Sahakian*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

The magnetohydrodynamic effect generates voltages related to blood flow, which are superimposed on the electrocardiogram (ECG) used for gating during cardiac magnetic resonance imaging (MRI). A method is presented for extracting the magnetohydrodynamic signal from the ECG. The extracted magnetohydrodynamic blood flow potential may be physiologically meaningful due to its relationship to blood flow. Removal of the magnetohydrodynamic voltages from the ECG can potentially lead to improved gating and diagnostically useful ECGs.

Original languageEnglish (US)
Pages (from-to)729-733
Number of pages5
JournalMedical and Biological Engineering and Computing
Volume46
Issue number7
DOIs
StatePublished - Jul 2008

Keywords

  • Blood flow
  • Cardiac
  • Electrocardiogram
  • Magnetic resonance imaging
  • Magnetohydrodynamic effect

ASJC Scopus subject areas

  • Biomedical Engineering
  • Computer Science Applications

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