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      • Department of Electrical and Electronics Engineering
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      Concept of T-wave morphology dispersion

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      Author
      Acar, Burak
      Yi, G.
      Malik, M.
      Date
      1999
      Source Title
      Proceedings of the Computers in Cardiology Conference, CinC 1999
      Print ISSN
      0276-6574
      Publisher
      IEEE
      Pages
      57 - 60
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      The detection of ventricular repolarization abnormalities is widely being done using the QT interval measurements. However, there are both technical and theoretical problems with QT measurements. We propose two robust methods for the quantification of the ventricular repolarization abnormalities: i) The quantification of the inter-lead morphology differences of the T wave (T Wave Morphology Dispersion - TMD) ii) The analysis of the T wave wavefront direction with respect to the QRS complex (Total Cosine R_To_T - TCRT). Sensitivity and specificity of 82% (84%) in supine position and 77% (79%) in standing position were achieved for TMD (TCRT). Both parameters were more reproducible than conventional QT interval based parameters.
      Keywords
      Sensitivity analysis
      Waveform analysis
      T-wave morphology
      Electrocardiography
      Permalink
      http://hdl.handle.net/11693/27847
      Published Version (Please cite this version)
      https://doi.org/10.1109/CIC.1999.825905
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