Results 11 to 20 of about 1,623 (161)

A Novel Method for ECG-Free Heart Sound Segmentation in Patients with Severe Aortic Valve Disease [PDF]

Sensors
Severe aortic valve diseases (AVD) cause changes in heart sounds, making phonocardiogram (PCG) analyses challenging. This study presents a novel method for segmenting heart sounds without relying on an electrocardiogram (ECG), specifically targeting ...
Elza Abdessater, Paniz Balali, Jimmy Pawlowski, Jérémy Rabineau, Cyril Tordeur, Vitalie Faoro, Philippe van de Borne, Amin Hossein   +7 more
doaj   +2 more sources

Cardiovascular Disease Screening in Primary School Children [PDF]

Children
Background: Screening for cardiovascular disease (CVD) and its associated risk factors in childhood facilitates early detection and timely preventive interventions.
Alena Bagkaki, Fragiskos Parthenakis, Gregory Chlouverakis, Emmanouil Galanakis, Ioannis Germanakis   +4 more
doaj   +2 more sources

Imaging of the heart with phonocardiography

Bio-Algorithms and Med-Systems, 2013
Abstract This paper focuses on techniques of phonocardiographic image registration. Simultaneous measurements of sound wave amplitudes from above the chest of a healthy person were performed by means of piezoelectric microphones. The location of the source of sound waves can be determined by implementing the size of the amplitudes. Sound
Konrad Kopański, Roman Płaneta, Dorota Sobczyk   +2 more
exaly   +3 more sources

Effects of precise cardio sounds on the success rate of phonocardiography. [PDF]

PLoS ONE
This work investigates whether inclusion of the low-frequency components of heart sounds can increase the accuracy, sensitivity and specificity of diagnosis of cardiovascular disorders. We standardized the measurement method to minimize changes in signal
Youngsin Kim, Mihyung Moon, Seokwhwan Moon, Wonkyu Moon   +3 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

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

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   +1 more source

Use of proposed systolic and myocardial performance indices derived from simultaneous ECG and PCG recordings to assess cardiac function in healthy Beagles [PDF]

Veterinary World, 2022
Background and Aim: Cardiac time intervals (CTIs) can provide important information on the electrical and mechanical properties of the heart. We hypothesized that cardiac function can be described using the combined power of electrocardiography (ECG) and
Karlo Romano B. Gicana, Chirutchaya Pinidmontree, Kitchanan Kosalathip, Siraphop Sirirut, Siripen Komolvanich, Sariya Asawakarn, Walasinee Sakcamduang, Phornphop Naiyanetr, Kittipong Tachampa   +8 more
doaj   +1 more source

Automated Assessment of the Quality of Phonocardographic Recordings through Signal-to-Noise Ratio for Home Monitoring Applications

Sensors, 2021
The signal quality limits the applicability of phonocardiography at the patients’ domicile. This work proposes the signal-to-noise ratio of the recorded signal as its main quality metrics.
Noemi Giordano, Samanta Rosati, Marco Knaflitz   +2 more
doaj   +1 more source

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   +1 more source