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.
|Title of host publication||Computers in Cardiology|
|Publisher||IEEE - Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2002|
|Event||Computers in Cardiology 2002 - Memphis, TN, United States|
Duration: 2002 Sep 22 → 2002 Sep 25
|Conference||Computers in Cardiology 2002|
|Period||2002/09/22 → 2002/09/25|