TY - GEN
T1 - Development of fetal cardiac intervals throughout 16 to 41 weeks of gestation
AU - Marzbanrad, Faezeh
AU - Kimura, Yoshitaka
AU - Funamoto, Kiyoe
AU - Sugibayashi, Rika
AU - Endo, Miyuki
AU - Ito, Takuya
AU - Palaniswami, Marimuthu
AU - Khandoker, Ahsan
PY - 2013
Y1 - 2013
N2 - In this paper a new noninvasive method is proposed for automated estimation of fetal cardiac intervals from Doppler Ultrasound (DUS) signal and fetal electrocardiogram (fECG) as a reference. The proposed method is based on a combination of Wavelet analysis and hybrid Support Vector Machines- Hidden Markov Models (SVM/HMM). This method provides automated beat by beat identification of cardiac valves' opening and closing which are used to estimate the fetal cardiac intervals. The range of these intervals in different gestational age from 16 to 41 weeks was evaluated in this study. The correlation between beat to beat intervals was also investigated. Results show a significant negative correlation between Pre-Ejection Period (PEP) and Ventricular Ejection Time (VET) (r = -0.61, p <0.0001), a positive correlation between VET and Systolic Time Interval (STI) (r =0.51, p <0.0001) and a significant correlation between PEP and Isovolumic Contraction Time (ICT) (r =0.67, p <0.0001).
AB - In this paper a new noninvasive method is proposed for automated estimation of fetal cardiac intervals from Doppler Ultrasound (DUS) signal and fetal electrocardiogram (fECG) as a reference. The proposed method is based on a combination of Wavelet analysis and hybrid Support Vector Machines- Hidden Markov Models (SVM/HMM). This method provides automated beat by beat identification of cardiac valves' opening and closing which are used to estimate the fetal cardiac intervals. The range of these intervals in different gestational age from 16 to 41 weeks was evaluated in this study. The correlation between beat to beat intervals was also investigated. Results show a significant negative correlation between Pre-Ejection Period (PEP) and Ventricular Ejection Time (VET) (r = -0.61, p <0.0001), a positive correlation between VET and Systolic Time Interval (STI) (r =0.51, p <0.0001) and a significant correlation between PEP and Isovolumic Contraction Time (ICT) (r =0.67, p <0.0001).
UR - http://www.scopus.com/inward/record.url?scp=84894206115&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84894206115
SN - 9781479908844
T3 - Computing in Cardiology
SP - 1155
EP - 1158
BT - Computing in Cardiology 2013, CinC 2013
T2 - 2013 40th Computing in Cardiology Conference, CinC 2013
Y2 - 22 September 2013 through 25 September 2013
ER -