Results 81 to 90 of about 90,051 (360)
Arquivos Brasileiros de Cardiologia, 2011 FUNDAMENTO: O aumento da pressão de capilar pulmonar (PCP) é um dos mecanismos de intolerância ao exercício. A avaliação da função diastólica pelo ecocardiograma (ECO) é capaz de estimar a PCP.
Maria Estefânia Bosco Otto +3 more
doaj
BMC Cardiovascular Disorders, 2023 Objective The purpose of this study was to investigate the feasibility of visualizing and quantifying the normal pattern of vortex formation in the left ventricle (LV) and right ventricle (RV) of the fetal heart during diastole using vector flow mapping (
Qinglan Shu +6 more
doaj +1 more source
Quantile regression for mixed models with an application to examine blood pressure trends in China [PDF]
Annals of Applied Statistics 2015, Vol. 9, No. 3, 1226-1246, 2015 Cardiometabolic diseases have substantially increased in China in the past 20 years and blood pressure is a primary modifiable risk factor. Using data from the China Health and Nutrition Survey, we examine blood pressure trends in China from 1991 to 2009, with a concentration on age cohorts and urbanicity.
arxiv +1 more source
Light‐Mediated Photomultiplication via Cascade Energy Transfer in Organic Photodiode
Advanced Functional Materials, EarlyView.Light‐mediated photomultiplication via cascade energy transfer in organic photodiode demonstrates external quantum efficiency exceeding 200% and specific detectivity surpassing 5.0 × 1013 Jones. This advancement effectively addresses the limitation of elevated dark current density characteristic of prior photomultiplication organic photodetectors ...
Gae Hwang Lee +8 more
wiley +1 more source
Phase shifts of synchronized oscillators and the systolic/diastolic blood pressure relation [PDF]
, 2004 We study the phase-synchronization properties of systolic and diastolic arterial pressure in healthy subjects. We find that delays in the oscillatory components of the time series depend on the frequency bands that are considered, in particular we find a change of sign in the phase shift going from the Very Low Frequency band to the High Frequency band.
arxiv +1 more source
Echocardiography video synthesis from end diastolic semantic map via diffusion model [PDF]
arXiv, 2023 Denoising Diffusion Probabilistic Models (DDPMs) have demonstrated significant achievements in various image and video generation tasks, including the domain of medical imaging. However, generating echocardiography videos based on semantic anatomical information remains an unexplored area of research.
arxiv
Advanced Healthcare Materials, EarlyView.Nanobubbles functionalized with indocyanine green and ischemic myocardium‐targeting peptide effectively target cardiomyocytes and enable the multimodal (fluorescence, ultrasonic, and photoacoustic) imaging of ischemic myocardium in mice with coronary microvascular dysfunction (CMD).
Bo Yu +8 more
wiley +1 more source
Interactions between cardiac activity and conscious somatosensory perception
, 2019 Fluctuations in the heart's activity can modulate the access of external stimuli to consciousness. The link between perceptual awareness and cardiac signals has been investigated mainly in the visual and auditory domain. Here, we investigated whether the
Al, E. +5 more
core +1 more source
Estimation of elastic and viscous properties of the left ventricle based on annulus plane harmonic behavior [PDF]
, 2006 Assessment of left ventricular (LV) function with an emphasis on contractility has been a challenge in cardiac mechanics during the recent decades. The LV function is usually described by the LV pressurevolume (P-V) diagram. The standard P-V diagrams
Gharib, Morteza +4 more
core +1 more source
A local optimal diastolic inequality on the two-sphere [PDF]
Journal of Topology and Analysis, Vol. 2 (2010), No 1, 109-121, 2008 Using a ramified cover of the two-sphere by the torus, we prove a local optimal inequality between the diastole and the area on the two-sphere near a singular metric. This singular metric, made of two equilateral triangles glued along their boundary, has been conjectured by E.
arxiv