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CTU-CHB Intrapartum Cardiotocography Database

CTU-CHB Intrapartum Cardiotocography Database

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This database, from the Czech Technical University (CTU) in Prague and the University Hospital in Brno (UHB), contains 5......

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    README.md

    This database, from the Czech Technical University (CTU) in Prague and the University Hospital in Brno (UHB), contains 552 cardiotocography (CTG) recordings, which were carefully selected from 9164 recordings collected between 2010 and 2012 at UHB.

    Data Description

    The CTG recordings start no more than 90 minutes before actual delivery, and each is at most 90 minutes long. Each CTG contains a fetal heart rate (FHR) time series and a uterine contraction (UC) signal, each sampled at 4 Hz.

    The priority was to create as homogeneous a set as possible; thus only recordings fulfilling the following criteria were included:

    • Singleton pregnancy
    • Gestational age >36 weeks
    • No a priori known developmental defects
    • Duration of stage 2 of labor ≤ 30 minutes
    • FHR signal quality (i.e. percentage of the recording during which FHR data were available) > 50% in each 30 minute window
    • Available analysis of biochemical parameters of umbilical arterial blood sample (i.e. pH)
    • Majority of vaginal deliveries (only 46 cesarean section (CS) deliveries included)

    Additional parameters were collected for all recordings, and are available in the (text) .hea files of the records:

    • Maternal data: age; parity; gravidity;
    • Delivery data: type of delivery (vaginal; operative vaginal; CS); duration of delivery; meconium stained fluid; type of measurement (i.e. ultrasound or direct scalp electrode);
    • Fetal data: sex; birth weight;
    • Fetal outcome data: analysis of umbilical artery blood sample (i.e. pH; pCO2; pO2; base excess and computed BDecf); Apgar score; neonatology evaluation (i.e. need for O2; seizures; admission to NICU)
    • Expert evaluation of the CTG data "Gold Standard" evaluation based on annotation of the signals by 9 expert obstetricians (following FIGO guidelines used in the Czech Republic) including variability/confidence for each signal (Note: these data are not yet available!)

    Acknowledgements

    Physionet thanks Václav Chudáček, Jiří Spilka, Miroslav Burša, Michal Huptych, and Lenka Lhotská at CTU, and Petr Janků and Lukáš Hruban at UHB, who created this data set, for making it freely available to the worldwide research community via PhysioBank. Special thanks to Václav Chudáček for coordinating the contribution and data transfer, and for his careful attention to ensure the quality of these records.

    The creators of this database would like to thank Philips Healthcare for providing software for extraction and transformation of the CTG data from the OB TraceVue system to an open format.



    When using this resource, please cite the original publication:

    Václav Chudáček, Jiří Spilka, Miroslav Burša, Petr Janků, Lukáš Hruban, Michal Huptych, Lenka Lhotská. Open access intrapartum CTG database. BMC Pregnancy and Childbirth 2014 14:16.

    Please include the standard citation for PhysioNet: (show more options)
    Goldberger, A., Amaral, L., Glass, L., Hausdorff, J., Ivanov, P. C., Mark, R., ... & Stanley, H. E. (2000). PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.


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