ECG T-wave monitor for potential early detection and diagnosis of cardiac arrhythmias

David W. Smith, Douglas Nowacki, John K.J. Li

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


T-wave abnormalities are gaining significance in the realm of electrocardiogram diagnostics. In particular, T-wave alternans are proving to be powerful predictive indicators of potentially fatal arrhythmias. T-wave morphology monitoring and analysis are the means by which alternans and other abnormalities are detected. We have presented a preliminary design of an analog T-wave monitor to provide a characteristic description of the beatto-beat T-wave morphology in terms of its maximum leading edge and trailing edge slopes, and its area. Experimental results showed that data from the analog T-wave monitor compared well with those predicted theoretically. Current design of the T-wave monitor, once improved, can find use in the screening, diagnosis, and early detection of T-wave abnormalities in clinical settings.

Original languageEnglish (US)
Pages (from-to)201-206
Number of pages6
JournalCardiovascular Engineering
Issue number4
StatePublished - Dec 2010

All Science Journal Classification (ASJC) codes

  • Surgery
  • Cardiology and Cardiovascular Medicine
  • Transplantation


  • Cardiac arrhythmias
  • ECG
  • MTWA
  • T-wave alternans
  • TWA

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