Title :
Changes in time-frequency phase spectra vs. ST-segment deviation for detecting acute coronary artery occlusion
Author :
Provaznik, I. ; Bardonova, J. ; Novakova, M. ; Novakova, Z. ; Kozumplik, J.
Author_Institution :
Brno Univ. of Technol., Czech Republic
Abstract :
The paper deals with a new method for the detection of myocardial ischemia caused by acute coronary artery occlusion, in the early phases. The method is based on the analysis of intra-QRS changes in time-frequency phase spectra generated by a wavelet transform. To verify the method, 11 Langendorff-perfused rabbit hearts have been used. The presented results show that models can detect early ischemia in one of three orthogonal leads as early as one minute after coronary artery occlusion. In addition, the method is compared to the traditional ST-segment analysis
Keywords :
blood vessels; cardiology; electrocardiography; medical signal processing; spectral analysis; time-frequency analysis; wavelet transforms; Langendorff-perfused rabbit hearts; ST-segment deviation; acute coronary artery occlusion detection; intra-QRS changes; myocardial ischemia detection; orthogonal leads; time-frequency phase spectra; wavelet transform; Arterial occlusion; Arteries; Cardiac disease; Heart; Ischemic pain; Myocardium; Phase detection; Rabbits; Time frequency analysis; Wavelet transforms;
Conference_Titel :
Computers in Cardiology 2001
Conference_Location :
Rotterdam
Print_ISBN :
0-7803-7266-2
DOI :
10.1109/CIC.2001.977653
