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Patrón de los movimientos respiratorios en el feto sano con crecimiento normal

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Author(s): Marisol García Noguera

Journal: Salus Online
ISSN 1316-7138

Volume: 16;
Issue: 2;
Start page: 35;
Date: 2012;
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Keywords: Fetal respiratory movements | audio samples | time series

ABSTRACT
The research aimed to theorize about the pattern of respiratory movements in the healthy fetus. They boarded a cross sectional model that studied the variable using color Doppler technology through time series analysis and the theory of dynamical systems. The population consists of pregnant and sample audio signals for 30 of the patients met the inclusion criteria. These were acquired with a team of color Doppler ultrasound Mark APOGEE 800 PLUS 3.5-MHz convex transducer that picked up the analog audio signal through a BNC connector to RCA audio output and video equipment being stored in computer staff under Windows with Adobe Systems and Audacity software, which allowed to export the audio data to numeric data and apply mathematical analysis. For nonlinear analysis the data were processed with the packages fdm, and tseriesChaos Rtisean on schedule A. Obtained the correlation dimension (CD), the sample was divided into 2 groups: pregnancies with preterm fetuses (32 to 36 weeks) and term (37 to 38 weeks). The Χ ± SD of the DC in fetuses at term was = 0, 71 ± SD 0.06 and in the premature group 0.73 ± 0.06 SD with a test t = - 2.304 and a P value
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