Title :
The coherence spectrum in an experimental model of ventricular fibrillation
Author :
Sierra, Gilberto ; Catrera, A. ; Martinez-Rubio, Antonio ; Fetsch, Thomas ; Reinhardt, Lutz ; Shenasa, Hosseh ; Breithardt, Giinter
Author_Institution :
Med. Klinik und Poliklinik, Westfalischen Wilhelms-Univ., Munster, Germany
Abstract :
The present paper investigated the use of the coherence spectrum as a method able to discriminate ventricular fibrillation and nonfibrillatory rhythms, when applied to the surface ECG in an animal experiment using rabbits. The magnitude-squared coherence function was calculated using three and five segments averaged and compared with a threshold; if it is greater than the threshold it is a nonfibrillatory rhythm otherwise it is ventricular fibrillation. The sensitivity and specificity obtained in this study encourage the extension of this technique to the analysis of the surface ECGs in humans
Keywords :
electrocardiography; medical signal processing; pattern recognition; spectral analysis; animal experiment; coherence spectrum; humans; magnitude-squared coherence function; nonfibrillatory rhythms; rabbits; segments; sensitivity; specificity; surface ECG; threshold; ventricular fibrillation; Animals; Cardiology; Coherence; Electrocardiography; Fibrillation; Heart; Hospitals; Noise measurement; Rabbits; Rhythm;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575110
