Fetal heart rate estimation by non-invasive single abdominal electrocardiography in real clinical conditions
نویسندگان
چکیده
Fetal heart rate (FHR) is the main feature for monitoring fetal well-being as recommended by International Federation of Gynecology and Obstetrics (FIGO). The ultrasound based cardiotocography (CTG) nowadays world-wide non-invasive clinical reference technique intrapartum FHR monitoring, stated FIGO. However, some limitations CTG have justified interest alternative solutions, on abdominal electrocardiography (ECG). Their aim to extract a ECG signal (fECG), from which R peaks are detected deduce FHR. Nevertheless, most published methods require large number sensors, not suitable an expected use in real clinics. A novel methodology using single derivation then investigated estimation conditions. After maternal attenuation, source-filter model considered characterize resulting signal. Based non-negative matrix factorization its spectrogram, fundamental frequency source part estimated, corresponding Validation proposed carried out database. Compared selection other methodologies, our proposition presents best performance terms reliability similarity CTG. Evaluated 8 subjects, total 167 min recordings, mean ratio outliers lower than 25%. These good results conditions makes promising solution routine practice hospital departments.
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ژورنال
عنوان ژورنال: Biomedical Signal Processing and Control
سال: 2022
ISSN: ['1746-8094', '1746-8108']
DOI: https://doi.org/10.1016/j.bspc.2021.103187