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Shape characterization of atrial fibrillation using time-frequency analysis

Publiceringsår: 2002
Språk: Engelska
Sidor: 17-20
Publikation/Tidskrift/Serie: Computers in Cardiology
Volym: 29
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


A new method for characterization of atrial fibrillation in the surface ECG is presented which is based on a time-frequency distribution of the QRST-cancelled signal. With the present method, information regarding temporal variations in fibrillation frequency and waveform shape is extracted and investigated. The method is evaluated on a database including 182 recordings (obtained during resting conditions) from patients diagnosed with atrial fibrillation. The results show that a high fibrillation frequency often is associated with a sinusoidal shape whereas a low frequency is more associated with a sawtooth-like shape.


  • Electrical Engineering, Electronic Engineering, Information Engineering
  • Atrial fibrillation


Computers in Cardiology 2002
  • ISSN: 0276-6574

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