Results 11 to 20 of about 4,365 (229)

Absent fourth heart sound as a marker of adverse events in hypertrophic cardiomyopathy with sinus rhythm

Annals of Noninvasive Electrocardiology, 2022
Background Patients with hypertrophic cardiomyopathy (HCM) in sinus rhythm commonly show the fourth heart sound (S4). The lack of S4 may be a marker of impaired atrial function in HCM patients with sinus rhythm.
Chieko Sakai, Tatsuya Kawasaki, Hirofumi Kawamata, Kuniyasu Harimoto, Hirokazu Shiraishi, Satoaki Matoba   +5 more
doaj   +2 more sources

Monitoring of the intrauterine state of the fetus. Question history. New possibilities of phonocardiography

Бюллетень сибирской медицины, 2023
The problem of decreasing perinatal mortality is one of the pressing problems in modern obstetrics. Unfortunately, current methods of monitoring the intrauterine state of the fetus that are at the disposal of an obstetrician – gynecologist ...
E. S. Repina, Y. V. Kosteley, A. Sh. Bureev, S. Yu. Yuriev, I. A. Petrov, O. A. Tikhonovskaya, G. A. Mikheenko   +6 more
doaj   +3 more sources

A comparative study of single-channel signal processing methods in fetal phonocardiography.

PLoS ONE, 2022
Fetal phonocardiography is a non-invasive, completely passive and low-cost method based on sensing acoustic signals from the maternal abdomen. However, different types of interference are sensed along with the desired fetal phonocardiography.
Katerina Barnova, Radana Kahankova, Rene Jaros, Martina Litschmannova, Radek Martinek   +4 more
doaj   +3 more sources

Passive Fetal Monitoring by Advanced Signal Processing Methods in Fetal Phonocardiography [PDF]

IEEE Access, 2020
Fetal phonocardiography (fPCG) is a non-invasive technique for detection of fetal heart sounds (fHSs), murmurs and vibrations. This acoustic recording is passive and provides an alternative low-cost method to ultrasonographic cardiotocography (CTG ...
Radek Martinek, Katerina Barnova, Rene Jaros, Radana Kahankova, Tomasz Kupka, Michal Jezewski, Robert Czabanski, Adam Matonia, Janusz Jezewski, Krzysztof Horoba   +9 more
doaj   +2 more sources

Phonocardiography [PDF]

BMJ, 1954
B. W. Wells
  +6 more sources

Wavelet filtering of fetal phonocardiography: A comparative analysis

Mathematical Biosciences and Engineering, 2019
Fetal heart rate (FHR) monitoring can serve as a benchmark to identify high-risk fetuses. Fetal phonocardiogram (FPCG) is the recording of the fetal heart sounds (FHS) by means of a small acoustic sensor placed on maternal abdomen.
Selene Tomassini , Annachiara Strazza, Agnese Sbrollini , Ilaria Marcantoni, Micaela Morettini, Sandro Fioretti , Laura Burattini   +6 more
doaj   +3 more sources

Evaluating a Preprocessing Pipeline for Fetal Phonocardiography Using FIR Filtering

Jurnal Elkomika
This study evaluates the effectiveness of a preprocessing pipeline consisting of resampling, normalization, and Finite Impulse Response (FIR) filtering to improve signal consistency for further signal analyses such as feature extraction and ...
SAHI RAFAEL DAMARDHI, IRMALIA SURYANI FARADISA, SOTYOHADI SOTYOHADI   +2 more
doaj   +2 more sources

Dynamic Changes in Fourth Heart Sound in Type 2 Diabetes: Insights From Visualized Phonocardiography and SGLT2 Inhibitor Adjustment. [PDF]

Case Rep Med
The fourth heart sound (S4) is an auscultatory marker of left ventricular diastolic dysfunction (LVDD). Additionally, S4 correlates with atrial function, which is typically impaired in patients with Type 2 diabetes (T2D) but can improve with sodium–glucose co‐transporter‐2 inhibitor (SGLT2i) therapy.
Yagi K, Chujo D, Ogawa S, Saito S, Iwazawa M, Tsuchiya T, Mizuta S, Yamasaki N, Muro T.   +8 more
europepmc   +2 more sources

Association between phonocardiography and echocardiography in heart failure patients with preserved ejection fraction. [PDF]

Eur Heart J Digit Health, 2023
Luo H, Weerts J, Bekkers A, Achten A, Lievens S, Smeets K, van Empel V, Delhaas T, Prinzen FW.   +8 more
europepmc   +3 more sources

FPGA-Based High-Performance Phonocardiography System for Extraction of Cardiac Sound Components Using Inverse Delayed Neuron Model

Frontiers in Medical Technology, 2021
The study focuses on the extraction of cardiac sound components using a multi-channel micro-electromechanical system (MEMS) microphone-based phonocardiography system.
Madhubabu Anumukonda, Prasadraju Lakkamraju, Shubhajit Roy Chowdhury   +2 more
doaj   +1 more source