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KMID : 0372919910120040261
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Journal of Biomedical Engineering Research
1991 Volume.12 No. 4 p.261 ~ p.265
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Detection of Distinctive Points in Impedance Cardiogram During Exercise by Cross -Correlation Method
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오인식
송철규/김덕원/김원기/윤대회
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Abstract
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As the ensemble averaged dz/dt signal during exercise gets smoothed, it is difficult to find the distinctive marks for estimation of stroke volume. The cross correlation function was made use of estimating these marks for automatic calculation by computer from the ensemble averaged dz/dt signal. LVET( Left Ventricular Ejection Time) and stroke volume were estimated based on the calculated parameters from the characteristic points. LVET, stroke volume calculated by hand, by the ensemble average and the cross correlation were compared for accuracy validation.
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KEYWORD
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