Results 141 to 150 of about 90,051 (360)
A two phase harmonic model for left ventricular function [PDF]
arXiv, 2006 A minimal model for mechanical motion of the left ventricle is proposed. The model assumes the left ventricle to be a harmonic oscillator with two distinct phases, simulating the systolic and diastolic phases, at which both the amplitude and the elastic constant of the oscillator are different. Taking into account the pressure within the left ventricle,
arxiv
Advanced Science, EarlyView.This study focuses on the early diagnosis of CVDs through pulse waveforms, requiring wearable devices to achieve high‐fidelity monitoring of pulse waves from the body surface. Knitted strain sensors are optimized in terms of mechanical adaptation and adhesion capability.
Zhongda Chen +6 more
wiley +1 more source
Clinical Cardiology, Volume 45, Issue 12, Page 1255-1263, December 2022., 2022 Abstract Background The definitive treatment for chronic thromboembolic pulmonary hypertension (CTEPH) is pulmonary endarterectomy (PEA), which has good long‐term outcomes. However, after surgery, a quarter of the patients still have residual pulmonary hypertension (RPH). In pulmonary hemodynamics, there are no unified criteria for RPH, even though the
Wu Song +4 more
wiley +1 more source
NOVEL UNDERSTANDING OF THE PHASIC STRUCTURE OF SYSTEMIC CIRCULATION
Российский кардиологический журнал, 2014 The article provides novel approach to the phasic structure of systemic circulation for rheovasogramms of upper and lower extremities, based upon neither geometrical description with visual evaluation of rheographic complexes, but upon genesis of their ...
A. A. Garanin, A. E. Ryabov
doaj +1 more source
Electromechanical Dynamics of the Heart: A Study of Cardiac Hysteresis During Physical Stress Test [PDF]
arXivCardiovascular diseases are best diagnosed using multiple modalities that assess both the heart's electrical and mechanical functions. While effective, imaging techniques like echocardiography and nuclear imaging are costly and not widely accessible. More affordable technologies, such as simultaneous electrocardiography (ECG) and phonocardiography (PCG)
arxiv
The Architecture of the Heart in Systole and Diastole [PDF]
, 1967 John Ross +4 more
openalex +1 more source
Advanced Science, EarlyView.The contact barrier difference is dynamically regulated by modulating the surface groups and introducing a dielectric trapping failure layer, contributing to high‐performance noncontact pressure sensors. Furthermore, this study eliminated the interference of object recognition accuracy caused by different approach speeds and distances. This achievement
Yanan Xiao +10 more
wiley +1 more source
Analysis of atherosclerotic plaque distribution in the carotid artery
Clinical Cardiology, Volume 45, Issue 12, Page 1272-1276, December 2022., 2022 Abstract Background The present study was designed to investigate the hypothesis that the outer wall at the carotid bifurcation is the most common area of atherosclerotic plaque deposition due to the low shear stress. Hypothesis We hypothesized that the most common site of arteriosclerosis in carotid arteries is different in the early and late stages ...
Shin‐Seok Yang +2 more
wiley +1 more source
An intelligent system for continuous blood pressure monitoring on remote multi-patients in real time [PDF]
arXiv, 2012 In this paper we present an electronic system to perform a non-invasive measurement of the blood pressure based on the oscillometric method, which does not suffer from the limitations of the well-known auscultatory one. Moreover the proposed system is able to evaluate both the systolic and diastolic blood pressure values and makes use of a ...
arxiv
Relations between pressure in pulmonary artery, left atrium, and left ventricle with special reference to events at end diastole. [PDF]
, 1971 S. Å. Forsberg
openalex +1 more source