Diastolic shape of the right ventricle of the heart [PDF]
Knowledge of right ventricular (RV) shape is important to the understanding of RV mechanical function and for the improvement of clinically important RV volume estimation techniques. Refinements to the simplest conceptions of RV shape are presented statistically here, based on a quantitative analysis of three-dimensional magnetic resonance (MR) images ...
Peter J. Yim+6 more
openalex +4 more sources
The anterior nucleus of the thalamus plays a role in the epileptic network
Abstract Objectives We investigated both the metabolic differences and interictal/ictal discharges of the anterior nucleus of the thalamus (ANT) in patients with epilepsy to clarify the relationship between the ANT and the epileptic network. Methods Nineteen patients with drug‐resistant epilepsy who underwent stereoelectroencephalography were studied ...
Hao Yan+9 more
wiley +1 more source
Development of the heart: (2) Septation of the atriums and ventricles [PDF]
In the first part of our review of cardiac development,1 we discussed the initial changes involved in transformation of the heart forming regions of the embryo into the great veins, the atrial and ventricular chambers, and the arterial trunks. We showed that this first part of cardiac development could be divided into phases of formation of the primary
Robert H. Anderson
openalex +6 more sources
Persistent ventricle partitioning in the adult zebrafish heart [PDF]
AbstractThe vertebrate heart integrates cells from the early-differentiating first heart field (FHF) and the later-differentiating second heart field (SHF) emerging from the lateral plate mesoderm. In mammals, this process forms the basis for the development of the left and right ventricle chambers and subsequent chamber septation. The single ventricle-
Catherine Pfefferli+4 more
openaire +6 more sources
21 Tesla MRI Microimaging of Rat Heart by Superparamagnetic Antimyoglobin Bound Nanoparticles [PDF]
Superparamagnetic iron-oxide bound antimyoglobin (SPIOM) characteristics were analyzed at different pH. After injecting SPIOM in heart, ex vivo magnetic resonance microimaging (MRM) technique was used to visualize microvasculature of rat heart including
Rakesh Sharma
core +2 more sources
COMPUTER MODELING IN THE DEVELOPMENT OF ARTIFICIAL VENTRICLES OF HEART
In article modern researches of processes of development of artificial ventricles of heart are described. Advanta- ges of application computer (CAD/CAE) technologies are shown by development of artificial ventricles of heart.
L. V. Belyaev, A. V. Zhdanov
doaj +1 more source
α1-adrenergic stimulation increases ventricular action potential duration in the intact mouse heart
The role of α1-adrenergic receptors (α-ARs) in the regulation of myocardial function is less well-understood than that of β-ARs. Previous reports in the mouse heart have described that α1-adrenergic stimulation shortens action potential duration in ...
William Joyce+4 more
doaj +1 more source
Scenarios for Increasing, Decreasing and Stability of Tpe/QT Ratio (Simulation Study) [PDF]
The objective of this simulation was to study the physiological meaning of the novel index for arrhythmic risk stratification – Tpe/QT ratio (the interval from the peak to the end of the T-wave (Tpe) on electrocardiogram divided by QT interval). Methods
Natalia V. Arteyeva, Jan E. Azarov
doaj +1 more source
Effects of early afterdepolarizations on excitation patterns in an accurate model of the human ventricles [PDF]
Early Afterdepolarizations, EADs, are defined as the reversal of the action potential before completion of the repolarization phase, which can result in ectopic beats.
Panfilov, Alexander+3 more
core +3 more sources
Sex‐specific activation of SK current by isoproterenol facilitates action potential triangulation and arrhythmogenesis in rabbit ventricles [PDF]
Sex has a large influence on cardiac electrophysiological properties. Whether sex differences exist in apamin‐sensitive small conductance Ca2+‐activated K+ (SK) current (IKAS) remains unknown.
Chen, Mu+10 more
core +1 more source