Results 31 to 40 of about 5,008 (218)

Classification of Heart Sounds Using Chaogram Transform and Deep Convolutional Neural Network Transfer Learning

open access: yesSensors, 2022
Heart sounds convey important information regarding potential heart diseases. Currently, heart sound classification attracts many researchers from the fields of telemedicine, digital signal processing, and machine learning—among others—mainly to identify
Ali Harimi   +6 more
doaj   +1 more source

Discrimination of Patients with Varying Degrees of Coronary Artery Stenosis by ECG and PCG Signals Based on Entropy

open access: yesEntropy, 2021
Coronary heart disease (CHD) is the leading cause of cardiovascular death. This study aimed to propose an effective method for mining cardiac mechano-electric coupling information and to evaluate its ability to distinguish patients with varying degrees ...
Huan Zhang   +8 more
doaj   +1 more source

Cross-Domain Transfer Learning for PCG Diagnosis Algorithm

open access: yesBiosensors, 2021
Cardiechema is a way to reflect cardiovascular disease where the doctor uses a stethoscope to help determine the heart condition with a sound map.
Kuo-Kun Tseng   +5 more
doaj   +1 more source

Assessing Hemorrhagic Shock Severity Using the Second Heart Sound Determined from Phonocardiogram: A Novel Approach

open access: yesMicromachines, 2022
Introduction: Hemorrhagic shock (HS) is a severe medical emergency. Early diagnosis of HS is important for clinical treatment. In this paper, we report a flexible material-based heart sound monitoring device which can evaluate the degree of HS through a ...
Yan Chen   +9 more
doaj   +1 more source

A GENERATIVE MODEL FOR DEEP FAKE AUGMENTATION OF PHONOCARDIOGRAM AND ELECTROCARDIOGRAM SIGNALS USING LSGAN AND CYCLE GAN

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2023
In order to diagnose a range of cardiac conditions, it is important to conduct an accurate evaluation of either phonocardiogram (PCG) and electrocardiogram (ECG) data.
Swarajya Madhuri Rayavarapu   +4 more
doaj   +1 more source

Soft Smart Biopatch for Continuous Authentication‐Enabled Cardiac Biometric Systems

open access: yesAdvanced Sensor Research, Volume 2, Issue 12, December 2023., 2023
The development of a novel biometric locking system using a continuous cardiac biometric wearable device designed for secure and efficient authentication is studied. The patch enhances data reliability and user comfort by combining microfabricated microphone technology, machine‐learning algorithms, and soft biocompatible materials.
Sung Hoon Lee   +9 more
wiley   +1 more source

A Chest‐Conformable, Wireless Electro‐Mechanical E‐Tattoo for Measuring Multiple Cardiac Time Intervals

open access: yesAdvanced Electronic Materials, Volume 9, Issue 9, September 2023., 2023
Thin, stretchable, conformable, lightweight, and low‐power e‐tattoos offer a comfortable, mobile solution for accurate and ambulatory electro‐mechanical cardiovascular monitoring, enabling enhanced detection of cardiac functions. Abstract Cardiovascular diseases are the leading cause of death globally.
Sarnab Bhattacharya   +12 more
wiley   +1 more source

Systolic third sound associated with systolic anterior motion of the mitral valve in cats with obstructive hypertrophic cardiomyopathy

open access: yesJournal of Veterinary Internal Medicine, Volume 37, Issue 5, Page 1679-1684, September/October 2023., 2023
Abstract Background Third heart sounds in cats frequently are associated with hypertrophic cardiomyopathy (HCM) but their exact characterization and timing within the cardiac cycle remains unknown. Objectives Characterize third heart sounds in cats by phonocardiography and test the ability of 3 observers with different levels of experience and training
Vittorio Saponaro   +7 more
wiley   +1 more source

Menopausal stage differences in endothelial resistance to ischemia‐reperfusion injury

open access: yesPhysiological Reports, Volume 11, Issue 18, September 2023., 2023
Abstract Background In postmenopausal women, reduced ovarian function precedes endothelial dysfunction and attenuated endothelial resistance to ischemia‐reperfusion (IR) injury. We hypothesized that IR injury would lower endothelial function, with premenopausal women demonstrating the greatest protection from injury, followed by early, then late ...
Jocelyn M. Delgado Spicuzza   +3 more
wiley   +1 more source

A Novel Approach to Simultaneous Phonocardiography and Electrocardiography During Auscultation

open access: yesIEEE Access, 2023
The combination of the phonocardiogram (PCG) and the electrocardiogram (ECG) allows the simultaneous evaluation of the heart’s mechanical and electrical conditions and could significantly improve the accuracy of an initial cardiovascular disease ...
Sofia M. Monteiro, Hugo Placido da Silva
doaj   +1 more source

Home - About - Disclaimer - Privacy