Title :
Late potential detection using the phase of the Bispectrum
Author :
Spaargaren, A. ; English, M.J.
Author_Institution :
Sussex Univ., Brighton, UK
Abstract :
The detection of Ventricular Late Potentials without averaging several hundred QRS complexes is highly desirable. The Bispectrum offers two attractive properties for this task, namely the suppression of Gaussian noise and the detection of signals arising from non-linear processes. A Bispectral Phase Index (BPI) is formed using the phase of the Bispectrum. This enables quadratically phase-coupled components to be defected from signals that do not have a random phase. The technique is used to distinguish successfully between normal high resolution recordings and those with added synthetic late potentials
Keywords :
Gaussian noise; electrocardiography; medical signal detection; medical signal processing; spectral analysis; ECG analysis; Gaussian noise suppression; QRS complexes; added synthetic late potentials; electrodiagnostics; normal high resolution recordings; quadratically phase-coupled components; signals arising from nonlinear processes; ventricular late potentials detection; Fourier transforms; Fractionation; Frequency; Gaussian noise; Higher order statistics; Myocardium; Phase detection; Signal detection; Signal processing; Signal resolution;
Conference_Titel :
Computers in Cardiology 1998
Conference_Location :
Cleveland, OH
Print_ISBN :
0-7803-5200-9
DOI :
10.1109/CIC.1998.731824
