Results 21 to 30 of about 1,764 (166)

A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: Phonocardiogram (PCG) signal provides valuable information for diagnosing heart diseases. However, its applications in quantitative analyses of heart function are limited because the interpretation of this signal is difficult.
Mohammad Mehdi Movahedi, Mohamadreza Shakerpour, Shahrokh Mousavi, Ahmad Nori, Seyyed Hesam Mousavian Dehkordi, Hossein Parsaei   +5 more
doaj   +1 more source

Deep Learning Algorithm for Heart Valve Diseases Assisted Diagnosis

Applied Sciences, 2022
Heart sounds are mainly the expressions of the opening and closing of the heart valves. Some sounds are produced by the interruption of laminar blood flow as it turns into turbulent flow, which is explained by abnormal functioning of the valves.
Santiago Isaac Flores-Alonso, Blanca Tovar-Corona, René Luna-García   +2 more
doaj   +1 more source

Novel Approach to Assess Cardiac Function Using Systolic Performance and Myocardial Performance Indices From Simultaneous Electrocardiography and Phonocardiography Recordings in Dogs With Various Stages of Myxomatous Mitral Valve Disease

Frontiers in Veterinary Science, 2021
Background and Objective: Myxomatous mitral valve disease (MMVD) progression entails changes in the structural and functional properties of the heart affecting cardiac timings and intervals within the cardiac cycle.
Karlo Romano B. Gicana, Karlo Romano B. Gicana, Tuchakorn Lertwanakarn, Kittipong Tachampa   +3 more
doaj   +1 more source

PRACTICAL IMPLEMENTATION OF IMPEDANCE REOGRAPHY IN CARDIOLOGY – NEW APPROACHES

Alʹmanah Kliničeskoj Mediciny, 2016
Background: The impedance rheocardiography is a  simple, inexpensive, noninvasive method of assessment of central hemodynamics that can be used for detection of cardiovascular remodeling and thus promote an improvement of cardiovascular mortality. Modern
A. A. Dumler, S. Yu. Podtaev, R. A. Stepanov, P. G. Frick   +3 more
doaj   +1 more source

Phonocardiopulmography: the future of perioperative auscultation [PDF]

Anesthesia and Pain Medicine
Traditionally, anesthesiologists have recommended performing auscultation of breath and heart sounds with a precordial or esophageal stethoscope during anesthesia.
Sung-Hoon Kim
doaj   +1 more source

Phonocardiography and Photoplethysmography With Simple Arduino Setups to Support Interdisciplinary STEM Education

IEEE Access, 2019
Small computer board platforms, such as Arduino, Raspberry Pi, and micro: bit are very common, cheap, and useful tools to teach modern technology, coding, and experimenting in different disciplines at various levels. Due to the huge available information
Zoltan Gingl, Gergely Makan, Janos Mellar, Gergely Vadai, Robert Mingesz   +4 more
doaj   +1 more source

A Novel Method for Measuring the Timing of Heart Sound Components through Digital Phonocardiography

Sensors, 2019
The auscultation of heart sounds has been for decades a fundamental diagnostic tool in clinical practice. Higher effectiveness can be achieved by recording the corresponding biomedical signal, namely the phonocardiographic signal, and processing it by ...
Noemi Giordano, Marco Knaflitz
doaj   +1 more source

Importance of fourth heart sound and preserved left atrial function in wild-type transthyretin amyloidosis. [PDF]

ESC Heart Fail
Abstract Aims A fourth heart sound (S4) was reported to be almost never present in patients with amyloid light‐chain cardiomyopathy. There have been no reports on S4 in patients with wild‐type transthyretin amyloid cardiomyopathy (ATTRwt‐CM). This study aimed to clarify the clinical implications of S4 in patients with ATTRwt‐CM.
Ochi Y, Yamasaki N, Kubo T, Baba Y, Miyagawa K, Noguchi T, Hirota T, Hamada T, Kitaoka H.   +8 more
europepmc   +2 more sources

Study of innocent murmurs in children by intracardiac phonocardiography

The Turkish Journal of Pediatrics, 1962
Innocent murmurs in children occur sufficiently frequently to make their accurate diagnosis of prime importance to the pediatrician, general practitioner and cardiologist.
Ali Ertuğrul
doaj   +1 more source

Evaluation of the effectiveness of fetal heart rate analysis using phonocardiography with novel mathematical methods of audiogram processing

Фундаментальная и клиническая медицина
Aim. To evaluate the sensitivity and specificity of a phonocardiography-based method for diagnosing fetal hypoxia using the FetaCare software and hardware complex. Materials and Methods.
E. S. Repina, S. Yu. Yuriev, Ya. V. Kosteley, N. D. Zimina   +3 more
doaj   +1 more source