Title :
Time-frequency analysis of model-based ventricular late potentials
Author :
Tagluk, M.E. ; English, M.J.
Author_Institution :
Sussex Univ., Brighton, UK
Abstract :
This study undertakes time-frequency characterisation of Ventricular Late Potentials (VLPs). To represent the VLPs introduced to the late phase of the QRS complex some models that also contain nonstationarity have been proposed. Time-frequency analysis of the ST segment that VLPs have been added overcomes the information that is lost when one dimensional techniques were used. Due to uniqueness of Wigner-Ville distribution it has been chosen as the basis for this analysis. The results were found promising in both qualitative and quantitative sense
Keywords :
electrocardiography; medical signal processing; physiological models; time-frequency analysis; QRS complex late phase; ST segment; Wigner-Ville distribution; electrodiagnostics; model-based ventricular late potentials; nonstationarity; one dimensional techniques; Biomedical engineering; Chirp; Electrocardiography; Image segmentation; Kernel; Mathematical model; Phase modulation; Signal processing; Signal resolution; Time frequency analysis;
Conference_Titel :
Biomedical Engineering Days, 1998. Proceedings of the 1998 2nd International Conference
Conference_Location :
Istanbul
Print_ISBN :
0-7803-4242-9
DOI :
10.1109/IBED.1998.710606
