Fetal PCGs

The new PhysioNet website is available at https://physionet.org.

This project is a continuation of the Simulated Fetal PCGs project.

That data set, and the software used to generate it, are described in

1. Cesarelli M, Ruffo M, Romano M, Bifulco P. Simulation of foetal phonocardiographic recordings for testing of FHR extraction algorithms. Comput Methods Programs Biomed 2012 Sep;107(3):513-23.

and

2. Ruffo M, Cesarelli M, Romano M, Bifulco P, Fratini A. An algorithm for FHR estimation from foetal phonocardiographic signals. Biomedical Signal Processing and Control 2010 Jan; 5:131-141.

When referencing this material, please include at least one of the citations above, and also include the standard citation for PhysioNet:

Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation 101(23):e215-e220 [Circulation Electronic Pages; http://circ.ahajournals.org/cgi/content/full/101/23/e215]; 2000 (June 13).

The project collects a series of 26 fetal phonocardiographic (PCG) signals from different pregnant women during the last months of their singleton physiological pregnancies (gestational week between 31 and 40). All women were healthy and aged between 25 and 35 years old. The files were recorded in a private clinical practice in 2010 by means of a portable phonocardiographic device (Fetaphon Monitoring System by Pentavox) during sessions lasting 20 minutes on average. The data was digitized with a sampling frequency of 333 Hz at 8-bits ADC; for each file, gestational week (GW) and patient id (P) are reported in the file name.

The data were used to design software for fetal PCG signal simulation, and to develop and test algorithms for fetal heart rate extraction. All the details are described in the sources.

In the recordings, it is possible to recognize the couple of the first and second heart sounds (S1 and S2 wavelets) where the signal is less corrupted by noise. The noise sources can be various, such as vibrations created by maternal heart sounds, maternal body organ sounds (due to maternal digestion, respiratory muscular movements, and placental blood turbulence), fetal movements, and the surrounding environment.

Project collaborators: Mariano Ruffo, Mario Cesarelli, Maria Romano, and Paolo Bifulco, all from the University of Naples, Department of Electrical Engineering and Information Technology, Napoli, Italy.

Recording information:

Gestational week (GW) and patient ID (P)are included in the file name
Sampling rate: 333 Hz
Resolution: 8 bits (Format 80)
The unit of measure is arbitrary since the phonocardiograph device supplies a normalized output
Gain is set to 0.005 for the WAVE display scale to be consistent with the previous simulated PCG data.

 Name                    Last modified      Size  Description
 Parent Directory                             -   
 fetal_PCG_p26_GW_36.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p26_GW_36.dat 2015-07-01 11:33  783K  digitized signal(s)
 fetal_PCG_p25_GW_37.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p25_GW_37.dat 2015-07-01 11:32  783K  digitized signal(s)
 fetal_PCG_p24_GW_36.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p24_GW_36.dat 2015-07-01 11:32  801K  digitized signal(s)
 fetal_PCG_p23_GW_38.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p23_GW_38.dat 2015-07-01 11:32  783K  digitized signal(s)
 fetal_PCG_p22_GW_38.hea 2015-11-12 13:56   91   header file
 fetal_PCG_p22_GW_38.dat 2015-07-01 11:31  781K  digitized signal(s)
 fetal_PCG_p21_GW_39.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p21_GW_39.dat 2015-07-01 11:31  781K  digitized signal(s)
 fetal_PCG_p20_GW_40.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p20_GW_40.dat 2015-07-01 11:31  781K  digitized signal(s)
 fetal_PCG_p19_GW_38.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p19_GW_38.dat 2015-07-01 11:31  781K  digitized signal(s)
 fetal_PCG_p18_GW_40.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p18_GW_40.dat 2015-07-01 11:30  783K  digitized signal(s)
 fetal_PCG_p17_GW_35.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p17_GW_35.dat 2015-07-01 11:30  783K  digitized signal(s)
 fetal_PCG_p16_GW_39.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p16_GW_39.dat 2015-07-01 11:30  781K  digitized signal(s)
 fetal_PCG_p15_GW_36.hea 2015-11-12 13:56   91   header file
 fetal_PCG_p15_GW_36.dat 2015-07-01 11:29  783K  digitized signal(s)
 fetal_PCG_p14_GW_36.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p14_GW_36.dat 2015-07-01 11:29  783K  digitized signal(s)
 fetal_PCG_p13_GW_36.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p13_GW_36.dat 2015-07-01 11:28  783K  digitized signal(s)
 fetal_PCG_p12_GW_39.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p12_GW_39.dat 2015-07-01 11:28  781K  digitized signal(s)
 fetal_PCG_p11_GW_37.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p11_GW_37.dat 2015-07-01 11:28  781K  digitized signal(s)
 fetal_PCG_p10_GW_36.hea 2015-11-12 13:56   91   header file
 fetal_PCG_p10_GW_36.dat 2015-07-01 11:28  785K  digitized signal(s)
 fetal_PCG_p09_GW_40.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p09_GW_40.dat 2015-07-01 11:27  781K  digitized signal(s)
 fetal_PCG_p08_GW_37.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p08_GW_37.dat 2015-07-01 11:27  781K  digitized signal(s)
 fetal_PCG_p07_GW_38.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p07_GW_38.dat 2015-07-01 11:26  781K  digitized signal(s)
 fetal_PCG_p06_GW_36.hea 2015-11-12 13:56   91   header file
 fetal_PCG_p06_GW_36.dat 2015-07-01 10:03  781K  digitized signal(s)
 fetal_PCG_p05_GW_34.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p05_GW_34.dat 2015-07-01 10:03  783K  digitized signal(s)
 fetal_PCG_p04_GW_38.hea 2015-11-12 13:56   91   header file
 fetal_PCG_p04_GW_38.dat 2015-07-01 10:02  779K  digitized signal(s)
 fetal_PCG_p03_GW_37.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p03_GW_37.dat 2015-07-01 10:02  781K  digitized signal(s)
 fetal_PCG_p02_GW_31.hea 2015-11-12 13:56   90   header file
 fetal_PCG_p02_GW_31.dat 2015-07-01 10:02  785K  digitized signal(s)
 fetal_PCG_p01_GW_36.hea 2015-11-12 13:56   89   header file
 fetal_PCG_p01_GW_36.dat 2015-07-01 10:01  781K  digitized signal(s)
 SHA256SUMS              2015-12-16 17:19  4.8K  
 SHA1SUMS                2015-12-16 17:19  3.5K  
 RECORDS                 2015-12-16 17:18  520   list of record names
 MD5SUMS                 2015-12-16 17:19  3.1K  
 DOI                     2019-02-06 16:24   19

Apache/2.4.62 (Debian) mod_auth_pgsql/2.0.3 OpenSSL/3.0.15 Server at archive.physionet.org Port 443