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Effects of maternal alcohol intake on fractal properties in human fetal breathing dynamics

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2 Author(s)
Akay, M. ; Sch. of Eng., Dartmouth Coll., Hanover, NH, USA ; Mulder, E.J.H.

Fractal methods have been found to be useful in characterizing biomedical signals. The use of fractal estimation requires the estimation of parameter H, which is directly related to the fractal dimension D. Here, the authors propose a new approach which is a combination of the wavelet transform and fractal estimators to characterize the human fetal breathing signals before and after the intake of two glasses of wine by a mother. This study was performed on 26 fetuses. The variances of the wavelet coefficients were estimated at each scale. The slope of the representation on a logarithmic plot from the scales 5 to 1 was found to be increased after alcohol intake. The authors' results suggested that fetal breathing rates have a rough structure before the alcohol intake and a smooth structure after alcohol intake.

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Biomedical Engineering, IEEE Transactions on  (Volume:45 ,  Issue: 9 )