scholarly journals Fetal Heart Rate Extraction Based on Wavelet Transform to Prevent Fetal Distress In Utero

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Mengni Zhu ◽  
Liping Liu
Keyword(s):  
Heart Rate ◽  
Wavelet Transform ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Distress ◽  
In Utero ◽  
Control Group ◽  
Observation Group ◽  
Peak Point ◽  
Heart Monitoring

In order to improve the effective extraction of fetal heart rate and prevent fetal distress in utero, a study of fetal heart rate feature extraction based on wavelet transform to prevent fetal distress in utero was proposed. This paper adopts a fetal heart rate detection method based on the maximum value of the binary wavelet transform modulus. The method is simulated by the Doppler fetal heart signal obtained from the clinic. Compared with the original curve, the transformed curve can roughly see the change rule of the original signal and identify the peak point of the signal, but due to the large disturbance of the peak point, the influence on the computer processing is also great. The periodicity of the transformed signal is greatly enhanced, making it easier to deal with the computation. A total of 300 pregnant women with full-term fetal heart monitoring from January 2018 to January 2020 were selected as the research subjects and divided into the observation group and the control group. The observation group consisted of 100 patients with abnormal fetal heart monitoring, and the control group consisted of 200 patients with normal fetal heart monitoring. The uterine contractions and fetal heart rate were recorded, and the incidence of fetal distress, cesarean section, neonatal asphyxia, and amniotic fluid and fecal contamination were observed. The incidence of fetal distress, cesarean section, neonatal asphyxia, and amniotic fluid fecal stain in the observation group were significantly higher than those in the control group. Fetal heart monitoring can accurately judge the situation of the fetus in pregnant women and timely diagnose the abnormal fetal heart rate, which has a better effect on the prognosis of perinatal infants and can reduce their mortality. It can effectively solve the problems existing in the autocorrelation algorithm and extract the fetal heart rate more accurately. It is an effective improved scheme of fetal heart rate extraction. It is very helpful in preventing fetal distress in utero.

scholarly journals Doppler Ultrasound Imaging Combined with Fetal Heart Detection in Predicting Fetal Distress in Pregnancy-Induced Hypertension under the Guidance of Artificial Intelligence Algorithm

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Su Liu ◽  
Yue Sun ◽  
Na Luo
Keyword(s):  
Umbilical Artery ◽  
Fetal Heart ◽  
Fetal Distress ◽  
Current Status ◽  
Control Group ◽  
Observation Group ◽  
Pregnancy Induced Hypertension ◽  
Heart Monitoring ◽  
Induced Hypertension ◽  
D Values

This study was to improve the feasibility and economic benefits of intelligent medical system Doppler ultrasound (DUS) imaging technology combined with fetal heart detection to predict the fetal distress in pregnancy-induced hypertension (PIH), so as to reduce the risk of deterioration of the patient’s condition. The characteristics of DUS images were analyzed, and a diffusion filter reducing the specificity was adopted to improve the smooth speckle noise of DUS images. 120 pregnant women in hospital were the subjects of the study, all of whom received ultrasound cord blood flow testing and fetal heart monitoring. 88 PIH patients with fetal distress were diagnosed and included in the observation group, and 32 healthy pregnant women tested during the same period were identified as the control group. Clinical data were reviewed and analyzed. The diagnostic rates of fetal distress by simple fetal heart monitoring and DUS detection combined with fetal heart monitoring were compared. The results showed that 26.7% of fetal distress were diagnosed by fetal heart monitoring alone, and 73.3% of fetal distress were diagnosed by combined testing, so the diagnostic accuracy of the combined detection method was greatly higher than the single fetal heart detection ( P < 0.05 ). The Pulsatility index (PI), resistance index (RI), and S/D values detected by the umbilical artery in the observation group were 1.48, 0.85, and 4.31, respectively. The PI, RI, and S/D values detected by the umbilical artery in the control group were 0.96, 0.64, and 3.59, respectively. The results of arterial detection were significantly higher than those of the control group, and the difference was of significant scientific significance ( P < 0.05 ). In summary, the PI and RI values of the middle cerebral artery (MCA) detected by DUS diagnosis can effectively reflect the current status of the fetus in the uterus and reduce the mortality of the fetus. The images guided by DUS imaging technology can clearly show the current status of the fetus in the uterus, effectively improve the medical diagnostic efficiency, and have important reference value for the development of intelligent medical equipment.

Does a Nonreactive Fetal Heart Rate Really Mean Fetal Distress?

1994 ◽  
Vol 49 (11) ◽  
pp. 743-744
Author(s):  
Hein J. Odendaal ◽  
Wilhelm Steyn ◽  
Gerhard B. Theron ◽  
Karin Norman ◽  
Gert F. Kirsten
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Distress

Fetal heart rate response to strenuous maternal exercise: Not a predictor of fetal distress

2002 ◽  
Vol 187 (3) ◽  
pp. 811-816 ◽  
Author(s):  
Mairead M. Kennelly ◽  
Noel McCaffrey ◽  
Paul McLoughlin ◽  
Suzanne Lyons ◽  
Peter McKenna
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Heart Rate Response ◽  
Fetal Heart ◽  
Fetal Distress ◽  
Maternal Exercise

Intrapartum Doppler velocimetry, amniotic fluid volume, and fetal heart rate as predictors of subsequent fetal distress

1989 ◽  
Vol 161 (6) ◽  
pp. 1508-1514 ◽  
Author(s):  
Albert P. Sarno ◽  
Myoung Ock Ahn ◽  
Harbinder S. Brar ◽  
Jeffrey P. Phelan ◽  
Lawrence D. Platt
Keyword(s):  
Heart Rate ◽  
Amniotic Fluid ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Distress ◽  
Fluid Volume ◽  
Doppler Velocimetry ◽  
Amniotic Fluid Volume

Intrapartum procedures and complications

2016 ◽  
Author(s):  
Stergios K. Doumouchtsis ◽  
S. Arulkumaran ◽  
Eleftheria L. Chrysanthopoulou ◽  
Stergios K. Doumouchtsis ◽  
Sambit Mukhopadhyay ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Distress ◽  
Breech Delivery ◽  
Second Stage ◽  
Second Stage Of Labour ◽  
Twin Delivery ◽  
Cord Prolapse ◽  
Labour Ward

This chapter discusses the diagnosis of labour, and describes what to do in the case of cord prolapse, abnormal fetal heart rate patterns in labour, continuous abdominal pain in labour, instrumental delivery for fetal distress in the second stage of labour, shoulder dystocia, acute tocolysis, symphysiotomy and destructive operations, along with twin delivery, breech delivery, abnormal lie or presentation in labour, and anaesthetic complications on the labour ward.

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