Annotation dataset of the cardiotocographic recordings constituting the “CTU-CHB intra-partum CTG database”

. 2020 May 19;31:105690. doi: 10.1016/j.dib.2020.105690

Subject	Biomedical Engineering
Specific subject area	Biomedical signal processing, specifically digital cardiotocographic (CTG) recordings
Type of data	MATLAB® data file (.mat)
How data were acquired	Visual inspection by an expert gynecologist, supported by a dedicated software application. Instruments: CTG Analyzer, dedicated software application for the automatic analysis of digital CTG recordings (https://dx.doi.org/10.1109/EMBC.2017.8037391).
Data format	Raw and derived
Parameters for data collection	Annotations refer to a total of 552 CTG recordings, each composed by two simultaneously acquired signals: the fetal heart rate and the maternal tocogram (uterine activity). Annotations are based on the analysis of both signals and indicate starting and ending points of specific events such as bradycardia, tachycardia, accelerations, decelerations and uterine contractions.
Description of data collection	This dataset contains the annotations of the digital CTG recordings constituting the “CTU-CHB intra-partum CTG database” available at Physionet (http://physionet.org). Annotations were visually identified by an expert gynecologist supported by CTG Analyzer, a dedicated software application (https://dx.doi.org/10.1109/EMBC.2017.8037391).
Data source location	Raw CTG data (digital CTG recordings) were obtained from Physionet (https://physionet.org/content/ctu-uhb-ctgdb/1.0.0/). Derived CTG annotation data were obtained and are stored at the Cardiovascular Bioengineering Lab, Department of Information Engineering, Università Politecnica delle Marche, Ancona, Italy.
Data accessibility	Raw CTG data are publicly available at the following Physionet link: https://physionet.org/content/ctu-uhb-ctgdb/1.0.0/. Derived CTG annotations are available with the article as supplementary material.
Related research article	S. Romagnoli, A. Sbrollini, L. Burattini, I. Marcantoni, M. Morettini, L. Burattini, Digital cardiotocography: What is the optimal sampling frequency?, Biomed. Signal Process. Control. 51 (2019) 210–215. https://doi.org/10.1016/j.bspc.2019.02.016 [1]