T Wave Alternans Analysis in ECG Signal: A Survey of the Principal Approaches

  • Nancy BetancourtEmail author
  • Carlos AlmeidaEmail author
  • Marco Flores-CaleroEmail author
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 918)


The T wave alternans (TWA) is an important phenomenon not only within the clinical field but within the scientific and technological field, it has been considered an important, non-invasive, very promising indicator to stratify the risk of sudden cardiac death. Due to its microvolt amplitude and background noises, sophisticated signal processing techniques are required for its detection and estimation. In this paper we present a survey of the state of the art focusing to detect sudden cardiac death by analyzing the T wave on long-term ECG signals.


ECG Sudden cardiac death T-wave analysis T-wave alternans 


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Authors and Affiliations

  1. 1.Departamento de Informática y Ciencias de la ComputaciónEscuela Politécnica NacionalQuitoEcuador
  2. 2.Departamento de Ciencias ExactasUniversidad de las Fuerzas Armadas - ESPEQuitoEcuador
  3. 3.Departamento de MatemáticaEscuela Politécnica NacionalQuitoEcuador
  4. 4.Department of Intelligent SystemsI&H TechLatacunga (Cotopaxi)Ecuador
  5. 5.Universidad de las Fuerzas Armadas - ESPEQuitoEcuador

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