A Simple and Effective Approach for Digitization of the CTG Signals from CTG Traces

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dc.authoridAkbulut, Yaman/0000-0002-4760-4843
dc.authoridKocamaz, Adnan Fatih/0000-0002-7729-8322
dc.authoridSengur, Abdulkadir/0000-0003-1614-2639
dc.authoridComert, Zafer/0000-0001-5256-7648
dc.authorwosidAkbulut, Yaman/V-5571-2018
dc.authorwosidGungor, Sila/AAN-1962-2021
dc.authorwosidKocamaz, Adnan Fatih/C-2820-2014
dc.authorwosidSengur, Abdulkadir/Q-8023-2019
dc.authorwosidComert, Zafer/F-1940-2016
dc.contributor.authorComert, Z.
dc.contributor.authorSengur, A.
dc.contributor.authorAkbulut, Y.
dc.contributor.authorBudak, U.
dc.contributor.authorKocamaz, A. F.
dc.contributor.authorGungor, S.
dc.date.accessioned2024-08-04T20:46:47Z
dc.date.available2024-08-04T20:46:47Z
dc.date.issued2019
dc.departmentİnönü Üniversitesien_US
dc.description.abstractObjectives: Cardiotocography (CTG) is a useful tool for monitoring of the fetal heart rate (FHR) and uterine contractions (UC) during the intrauterine life. Generally, CTG is provided on a printed paper which is hard to save for future evaluations. So, digitization of CTG signals is in demand for future evaluations. A straightforward approach for digitization of the CTG signals is to apply image processing on the scanned CTG printed papers. Material and methods: In this paper, an automatic procedure is proposed for digitization of the CTG signals. The proposed approach consists of four main stages such as pre-processing, image segmentation, signal extraction and signal calibration. The pre-processing stage covers median filtering and contrasts limited adaptive histogram equalization (CLAHE) for noise removal and contrast enhancement. Image segmentation is used to binarize the CTG images for signal determination using the Otsu's thresholding algorithm. The signal extraction is carried out by a two-stepped algorithm. The acquired CTG signals are then calibrated for obtaining the final CTG signals. We use the correlation coefficient to measure the similarity between the automatically digitized CTG signals and original signals. Results: In experimental works, an open-access database, which contains 552 CTG recordings, is employed. The results are quite impressive. According to the obtained results, the average correlation coefficients for FHR and UC signals are 0.9715 +/- 0.0168 and 0.9717 +/- 0.0465, respectively. Conclusions: The obtained results show that the proposed method is quite efficient in digitization of the CTG signals. In future works, this tool will be used to digitize the recordings belonging to the antepartum period collected from the obstetrics clinics in Medical Park Hospital in Elazig, Turkey. (C) 2019 AGBM. Published by Elsevier Masson SAS. All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK-TEYDEB) [2180103]en_US
dc.description.sponsorshipThanks to Scientific and Technological Research Council of Turkey (TUBITAK-TEYDEB) that supported this study as 1512 -Stage Entrepreneurial Assistance Program project titled Development of a Computerized Fetal Heart Rate Analysis System based on Cardiotocography Machine and numbered 2180103.en_US
dc.identifier.doi10.1016/j.irbm.2019.05.003
dc.identifier.endpage296en_US
dc.identifier.issn1959-0318
dc.identifier.issn1876-0988
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85072298827en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage286en_US
dc.identifier.urihttps://doi.org/10.1016/j.irbm.2019.05.003
dc.identifier.urihttps://hdl.handle.net/11616/98958
dc.identifier.volume40en_US
dc.identifier.wosWOS:000492090000005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofIrbmen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBiomedical signal processingen_US
dc.subjectDigitization of the CTG signalsen_US
dc.subjectImage processingen_US
dc.subjectFHR and UC signalsen_US
dc.subjectCorrelation coefficienten_US
dc.titleA Simple and Effective Approach for Digitization of the CTG Signals from CTG Tracesen_US
dc.typeArticleen_US

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