Raw Fetal PCG Contaminated With Mother’s PCG
Description
Eight patients consented in the participation of the recording for the fetus PCG. Most of the patients were 36+ weeks pregnant except one patient with a pregnancy of 32+ weeks. The hardware used to record fetal PCG is non-invasive with the infrastructure of a stethoscope attached to the microphone. Doppler and pulse oximeter along with the hardware were used simultaneously to record fetal and mother PCG. The sampling rate of the PCG is 44100 Hz. The doppler and pulse oximeter are the standard device used to record the fetus heart rate and mother’s heart rate in beats per minute (bpm). In contrast, the PCG signals acquired acoustic fetal heart sound traces. Each patient was in laying position while the experiment was carried out. The recordings were taken in three and two sessions per patient in two batches. The first batch consists of 3 patients with 2 sessions per minute. And the second batch includes 5 patients with 3 sessions per minute. The naming of the files is done accordingly such that B1_P1_S1 represents Batch 1’s patient 1 during session 1. And B2_P2_S2 indicates Batch 2’s patient 2 during session 2. Each session lasted for 1 minute with a gap of 10 seconds per session for both batches. The hardware was assembled under the Biomedical Instrumentation and Signal Processing Laboratory (BISPL) at Independent University, Bangladesh. The fetal and maternal PCG data were recorded in Urban Maternity Center, Dhaka North City Corporation, Bangladesh.