Measuring temporal complexity of ventricular fibrillation
نویسندگان
چکیده
Ž . Temporal complexity of early ventricular fibrillation VF is re-assessed through measuring the correlation dimension Ž . D , entropy K and high-dimensional component s from electrocardiogram ECG recordings using the Gaussian kernel 2 2 algorithm. Seven representative ECG traces of induced VF among 53 pig subjects are selected for analysis. VF is found to have 80–90% low-dimensional deterministic dynamics with D varying around 5 and 10–20% high-dimensional extents. 2 q 2000 Elsevier Science B.V. All rights reserved. PACS: 05.45.Tp; 87.19.Hh; 05.45.Ac; 02.50.-r
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