scholarly journals Linear Phase Sharp Transition BPF to Detect Noninvasive Maternal and Fetal Heart Rate

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Niyan Marchon ◽  
Gourish Naik ◽  
K. R. Pai
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Well Being ◽  
Variable Order ◽  
Band Pass Filter ◽  
Linear Phase ◽  
Sharp Transition ◽  
Pass Filter ◽  
Fetal Scalp

Fetal heart rate (FHR) detection can be monitored using either direct fetal scalp electrode recording (invasive) or by indirect noninvasive technique. Weeks before delivery, the invasive method poses a risk factor to the fetus, while the latter provides accurate fetal ECG (FECG) information which can help diagnose fetal’s well-being. Our technique employs variable order linear phase sharp transition (LPST) FIR band-pass filter which shows improved stopband attenuation at higher filter orders. The fetal frequency fiduciary edges form the band edges of the filter characterized by varying amounts of overlap of maternal ECG (MECG) spectrum. The one with the minimum maternal spectrum overlap was found to be optimum with no power line interference and maximum fetal heart beats being detected. The improved filtering is reflected in the enhancement of the performance of the fetal QRS detector (FQRS). The improvement has also occurred in fetal heart rate obtained using our algorithm which is in close agreement with the true reference (i.e., invasive fetal scalp ECG). The performance parameters of the FQRS detector such as sensitivity (Se), positive predictive value (PPV), and accuracy (F1) were found to improve even for lower filter order. The same technique was extended to evaluate maternal QRS detector (MQRS) and found to yield satisfactory maternal heart rate (MHR) results.

scholarly journals Linear phase FIR filter to compute fetal heart rate variability

2018 ◽  
Vol 7 (4.5) ◽  
pp. 492
Author(s):  
Niyan Marchon ◽  
Gourish Naik
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fir Filters ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Fetal Heart Rate Variability ◽  
Fetal Electrocardiography

Continuous monitoring of fetal heart rate (FHR) can detect the well-being of the fetus and thus indicates non-reassuring fetal status. In- vasive fetal electrocardiography (FECG) using the fetal scalp electrode applied to the fetus scalp allows accurate detection of fetal QRS (FQRS) complexes, however with a risk of infection to the fetus. We have proposed a non-invasive fetal heart rate (NIFHR) filtering technique employing finite impulse response (FIR) filters. We applied Fast Fourier Transform (FFT) to the Physionet abdominal ECG (aECG) records and derived the fiduciary edges of the spectrum of the FECG. A FIR band pass filter (BPF) is designed which is a com- posite filter consisting of a high pass filter (HPF) followed by a low pass filter (LPF) in that order. The cut off frequencies of these com- posite filters are the fiduciary edges of the fetal electrocardiography spectrum. A FQRS detector to obtain fetal heart rate variability (FHRV) processes the FQRS signal filtered through these composite FIR filters. It is observed that channel 4 from records r01 and r08 obtained 100% results for sensitivity, positive predictive value and accuracy while, the overall accuracy was 92.21%. This design can also be extended to compute maternal heart rate.  

scholarly journals Extraction of Fetal Heart Rate from Maternal ECG—Non Invasive Approach for Continuous Monitoring during Labor

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1009 ◽  
Author(s):  
Tashreque Mohammed Haq ◽  
Safkat Arefin ◽  
Shamiur Rahman ◽  
Tanzilur Rahman
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Continuous Monitoring ◽  
Good Accuracy ◽  
Fetal Heart ◽  
Signal Separation ◽  
Invasive Approach ◽  
Non Invasive ◽  
Proposed Model ◽  
Fetal Scalp

Here, we propose a signal processing based approach for the extraction of the fetal heart rate (FHR) from Maternal Abdominal ECG (MAECG) in a non-invasive way. Datasets from a Physionet database has been used in this study for evaluating the performance of the proposed model that performs three major tasks; preprocessing of the MAECG signal, separation of Fetal QRS complexes from that of maternal and estimation of Fetal R peak positions. The MAECG signal is first preprocessed with improved multistep filtering techniques to detect the Maternal QRS (MQRS) complexes, which are dominant in the MAECG. A reference template is then reconstructed based on MQRS locations and removed from the preprocessed signal resulting in the raw FECG. This extracted FECG is further corrected and enhanced before obtaining the Fetal R peaks. The detection of FQRS and calculation of FHR has been compared against the reference Fetal Scalp ECG. Results indicate that the approach achieved good accuracy.

scholarly journals Intrapartum fetal scalp lactate sampling for fetal assessment in the presence of a non-reassuring fetal heart rate trace

2010 ◽  
Author(s):  
Christine E East ◽  
Leo R Leader ◽  
Penelope Sheehan ◽  
Naomi E Henshall ◽  
Paul B Colditz
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Scalp

Do spectral bands of fetal heart rate variability associate with concomitant fetal scalp pH?

2013 ◽  
Vol 89 (9) ◽  
pp. 739-742 ◽  
Author(s):  
Saila M. Siira ◽  
Tiina H. Ojala ◽  
Tero J. Vahlberg ◽  
Karl G. Rosén ◽  
Eeva M. Ekholm
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Spectral Bands ◽  
Fetal Scalp ◽  
Fetal Heart Rate Variability

Studies in fetal well-being: Variations in fetal heart rate

1958 ◽  
Vol 76 (5) ◽  
pp. 998-1012 ◽  
Author(s):  
Louis M. Hellman ◽  
Morton A. Schiffer ◽  
Schuyler G. Kohl ◽  
Walter E. Tolles
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Well Being

scholarly journals Effects of Classical Music, Natural and Murottal Music on Fetal Well-Being

2020 ◽  
Vol 4 (7) ◽  
pp. 222-225
Author(s):  
Rahayu ` Sumaningsih ◽  
Teta Puji Rahayu ◽  
Budi Joko Santosa
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Classical Music ◽  
Fetal Heart ◽  
Well Being ◽  
Mean Values ◽  
Sense Of Security ◽  
Before And After ◽  
Independent Variable ◽  
Fetal Wellbeing

Music affects to human psychology, provides a sense of security, comfort and fun. Classical, natural and murottal music has a tone, rhythm, speed, gentle meter capable of stimulating alpha waves, calmness, and relaxation, beneficial to the well-being of the fetus. The purpose of this study is to describe classical, natural and murotal music on fetal well-being. This Quasi-Experiment Research with pretest-posttest design. A sample of 40 individuals was divided into 4 groups of mothers. The independent variable is classical music, natural, murotal and without music. The dependent variable is fetal well-being. The mean values before and after the intervention naturally were calculated. The results of fetal well-being based on the fetal heart rate of the classical music group before treatment there were 10% of fetuses experiencing mild aspysia after treatment of the fetus experiencing 0% aspysia. Natural and Murottal Music Group before and after treatment 100% normal fetal heart rate, group without music, before and after treatment 50% of fetuses experience Mild Aspysia. Fetal wellbeing results are based on Apgar Score, the Classical Music group after listening to classical music 10% experienced mild Aspysia. Natural Music Group and Murottal after listening to natural music and murottal 100% of babies under normal circumstances. The group without music after birth 50% of babies experience mild Aspysia. Conclusion, classical music overcomes mild asphyxia based on fetal heart rate, natural and murrotal music effectively maintains fetal well-being until birth. Keywords: classical music; natural music; murottal; fetal well-being

Application of a fetal scalp electrode for continuous fetal heart rate monitoring during an ex utero intrapartum treatment

2011 ◽  
Vol 46 (2) ◽  
pp. e37-e40 ◽  
Author(s):  
Masatoki Kaneko ◽  
Shunichi Tokunaga ◽  
Motoi Mukai ◽  
Seirou Machigashira ◽  
Youhei Maki ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Heart Rate Monitoring ◽  
Fetal Heart Rate Monitoring ◽  
Scalp Electrode ◽  
Ex Utero Intrapartum Treatment ◽  
Fetal Scalp
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