Results 21 to 30 of about 4,365 (229)

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

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

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

A Wearable Multi-Sensor Array Enables the Recording of Heart Sounds in Homecare

Sensors, 2023
The home monitoring of patients affected by chronic heart failure (CHF) is of key importance in preventing acute episodes. Nevertheless, no wearable technological solution exists to date. A possibility could be offered by Cardiac Time Intervals extracted
Noemi Giordano, Samanta Rosati, Gabriella Balestra, Marco Knaflitz   +3 more
doaj   +1 more source

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

Infective Endocarditis Complicated by Ventricular Septal Defect and Coarctation of the Aorta, Suspected on Auscultation and Phonocardiography. [PDF]

Intern Med
Yagi I, Yagi S, Saijo Y, Yamada H, Sugano M, Zheng R, Kadota M, Ise T, Yamaguchi K, Soeki T, Wakatsuki T, Hata H, Sata M.   +12 more
europepmc   +3 more sources

A Semi-automatic Heart Sounds Identification Model and Its Implementation in Internet of Things Devices

Advances in Electrical and Computer Engineering, 2021
Identification of heart sound signals in the form of a phonocardiogram (PCG) has recently attracted the attention of many researchers along with the development of small devices and global Internet connection in a way to offer automatic illness ...
JUSAK, J., PUSPASARI, I., KUSUMAWATI, W. I.   +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

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

Health Monitoring via Heart, Breath, and Korotkoff Sounds by Wearable Piezoelectret Patches

Advanced Science, Volume 10, Issue 28, October 6, 2023., 2023
Flexible piezoelectret patches are developed to examine audio physiological signals from cardiovascular and respiratory systems, including heart, Korotkoff, and breath sounds. A customized electromagnetic shielding structure is designed for precision and high‐fidelity measurements and several unique physiological sound patterns have been collected and ...
Liuyang Han, Weijin Liang, Qisen Xie, JingJing Zhao, Ying Dong, Xiaohao Wang, Liwei Lin   +6 more
wiley   +1 more source