Comparison of waveforms in conventional 12-lead ECGs and those derived from EASI leads in children

Olle Pahlm, J Pettersson, A Thulin, CL Feldman, DQ Feild, GS Wagner

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12 Citations (SciVal)


To investigate the possibility of simplifying electrocardiogram (ECG) recording in children, we compared waveforms in conventional 12-lead ECGs to those derived from EASI leads in 221 children of various ages. The conventional 12-lead ECGs and the ECGs using EASI electrode positions were collected simultaneously. We developed and determined the value of age-specific transformation coefficients for use in deriving 12-lead ECGs from the signals recorded at the EASI sites. We compared the results of using age-specific coefficients to the results of using adult coefficients and studied the "goodness-of-fit" between the conventional and the derived 12-lead ECGs. The age-specific coefficients performed slightly better than the adult coefficients, and good agreement was usually attained between the conventional 12-lead ECG and the EASI-derived 12-lead ECG. Our conclusion is that EASI leads in children have the same high levels of "goodness-of-fit" to replicate conventional 12-lead ECG waveforms, as reported earlier in adults.
Original languageEnglish
Pages (from-to)25-31
JournalJournal of Electrocardiology
Issue number1
Publication statusPublished - 2003

Subject classification (UKÄ)

  • Cardiac and Cardiovascular Systems


  • congenital heart disease
  • resting ECG
  • children


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