Results 41 to 50 of about 1,137,633 (259)

Transmural Myocardial Mechanics During Isovolumic Contraction [PDF]

open access: yesJACC: Cardiovascular Imaging, 2009
We sought to resolve the 3-dimensional transmural heterogeneity in myocardial mechanics observed during the isovolumic contraction (IC) phase.Although myocardial deformation during IC is expected to be little, recent tissue Doppler imaging studies suggest dynamic myocardial motions during this phase with biphasic longitudinal tissue velocities in left ...
Jeffrey H. Omens   +3 more
openaire   +2 more sources

Analytical method to measure three-dimensional strain patterns in the left ventricle from single slice displacement data [PDF]

open access: yes, 2010
Background: Displacement encoded Cardiovascular MR (CMR) can provide high spatial resolution measurements of three-dimensional (3D) Lagrangian displacement. Spatial gradients of the Lagrangian displacement field are used to measure regional myocardial
Ennis, Daniel B   +5 more
core   +5 more sources

Polypyrrole-chitosan conductive biomaterial synchronizes cardiomyocyte contraction and improves myocardial electrical impulse propagation

open access: yesTheranostics, 2018
Background: The post-myocardial infarction (MI) scar interrupts electrical impulse propagation and delays regional contraction, which contributes to ventricular dysfunction. We investigated the potential of an injectable conductive biomaterial to restore
Zhi Cui   +8 more
semanticscholar   +1 more source

Eigenhearts for diagnosis of congestive heart failure (CHF) [PDF]

open access: yes, 2006
Common cardiac diseases such as cardio-myopathy, coronary artery diseases, and valve diseases, result in abnormal myocardial movement, which could eventually lead to heart failure, also called congestive heart failure (CHF). CHF is a disease in which the
Ahanathapillai, Vijayalakshmi   +1 more
core   +1 more source

Strain bidimensional na cardiopatia de Takotsubo Two-dimensional strain in Takotsubo cardiomyopathy

open access: yesArquivos Brasileiros de Cardiologia, 2010
Este relato apresenta o seguimento tardio de um caso de cardiomiopatia de Takotsubo com boa evolução clínica e melhora da função sistólica global ventricular esquerda.
Carlos Bellini G. Gomes   +1 more
doaj   +1 more source

The role of Volatile Anesthetics in Cardioprotection: a systematic review. [PDF]

open access: yes, 2012
This review evaluates the mechanism of volatile anesthetics as cardioprotective agents in both clinical and laboratory research and furthermore assesses possible cardiac side effects upon usage.
Applegate, Richard L   +5 more
core   +1 more source

Quantification of left ventricular longitudinal strain, strain rate, velocity and displacement in healthy horses by 2-dimensional speckle tracking [PDF]

open access: yes, 2011
Background: The quantification of equine left ventricular (LV) function is generally limited to short-axis M-mode measurements. However, LV deformation is 3-dimensional (3D) and consists of longitudinal shortening, circumferential shortening, and radial ...
De Clercq, Dominique   +4 more
core   +1 more source

Effects of sugammadex and rocuronium on electro-mechanical activity of cardiac myocytes [PDF]

open access: yesKorean Journal of Anesthesiology
Background Sugammadex reverses the effects of steroidal neuromuscular-blocking agents, such as rocuronium, by encapsulating these agents. Its cardiovascular adverse effects include QTc prolongation, hypotension, bradycardia, atrioventricular block ...
Oguzhan Arun   +6 more
doaj   +1 more source

Changes and classification in myocardial contractile function in the left ventricle following acute myocardial infarction [PDF]

open access: yes, 2017
In this research, we hypothesized that novel biomechanical parameters are discriminative in patients following acute ST-segment elevation myocardial infarction (STEMI).
Aderhold, Andrej   +5 more
core   +1 more source

Short term doxycycline treatment induces sustained improvement in myocardial infarction border zone contractility. [PDF]

open access: yes, 2018
Decreased contractility in the non-ischemic border zone surrounding a MI is in part due to degradation of cardiomyocyte sarcomeric components by intracellular matrix metalloproteinase-2 (MMP-2).
Aguayo, Esteban   +11 more
core   +5 more sources

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