TY - JOUR
T1 - Measuring temporal complexity of ventricular fibrillation
AU - Yu, Dejin
AU - Small, Michael
AU - Harrison, Robert G.
AU - Robertson, Colin
AU - Clegg, Gareth
AU - Holzer, Michael
AU - Sterz, Fritz
N1 - Funding Information:
We thank Ken Morallee of Laerdal Medical Ltd for invaluable clinical input. We also thank Cees Diks for providing a computer code of nonlinear fitting and carefully reading the manuscript. The work is currently funded through a Research Development Grant by the Scottish Higher Education Funding Council (SHEFC), Grant No. RDG/078. The experiment work is supported by a grant (No. 6168) of the `Jubilaeumsfond' of the Oesterreichische Nationalbank, Vienna, Austria. MH wishes to thank BIOMED2 European Commission, DG XII for Science Research and Development, Directorate Life Science and Technologies, Biomedical and Health Research Division for financial support.
PY - 2000/1/17
Y1 - 2000/1/17
N2 - Temporal complexity of early ventricular fibrillation (VF) is re-assessed through measuring the correlation dimension D2, entropy K2 and high-dimensional component σ from electrocardiogram (ECG) recordings using the Gaussian kernel 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 D2 varying around 5 and 10-20% high-dimensional extents.
AB - Temporal complexity of early ventricular fibrillation (VF) is re-assessed through measuring the correlation dimension D2, entropy K2 and high-dimensional component σ from electrocardiogram (ECG) recordings using the Gaussian kernel 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 D2 varying around 5 and 10-20% high-dimensional extents.
UR - http://www.scopus.com/inward/record.url?scp=0034676962&partnerID=8YFLogxK
U2 - 10.1016/S0375-9601(99)00827-0
DO - 10.1016/S0375-9601(99)00827-0
M3 - Article
AN - SCOPUS:0034676962
SN - 0375-9601
VL - 265
SP - 68
EP - 75
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1-2
ER -