Title :
VCG loop alignment, morphologic beat-to-beat variability and the presence of noise
Author :
Carro, Elena ; Åström, Magnus ; Sörnmo, Leif ; Wohlfart, Björn
Author_Institution :
City University of Hong Kong
fDate :
Oct. 30 1997-Nov. 2 1997
Abstract :
The performance of least squares VCG loop alignment by rotation, scaling and time synchronization is investigated in the presence of noise. The loop alignment is studied using simulated signals obtained from an action potential model which introduces a certain amount of morphologic beat-to-beat variability. The effects of noise due to respiration and muscular activity are studied in terms of morphologic variability and parameter estimate accuracy.
Keywords :
electrocardiography; medical signal processing; noise; parameter estimatione; physiological models; action potential model; electrodiagnostics; least squares VCG loop alignment performance; morphologic beat-to-beat variability; morphologic variability; muscular activity; parameter estimate accuracy; respiration; rotation; scaling; simulated signals; time synchronization; vectorcardiography; Background noise; Electrocardiography; Extraterrestrial measurements; Least squares methods; Noise measurement; Parameter estimation; Physiology; Signal processing; Signal to noise ratio; Surface morphology;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.754525
