Results 61 to 70 of about 685,078 (425)
Frontiers in Physiology, 2022 Collectively known as congenital heart defects (CHDs), cardiac abnormalities at birth are the most common forms of neonatal defects. Being principally responsible for the heart‘s pumping power, ventricles are particularly affected by developmental ...
Maha Alser +5 more
doaj +1 more source
Segmentation of the left ventricle of the heart in 3-D+t MRI data using an optimized nonrigid temporal model [PDF]
, 2008 Modern medical imaging modalities provide large amounts of information in both the spatial and temporal domains and the incorporation of this information in a coherent algorithmic framework is a significant challenge.
Ghita, Ovidiu +2 more
core +1 more source
Continuous addition of progenitors forms the cardiac ventricle in zebrafish
bioRxiv, 2017 The vertebrate heart develops from several progenitor lineages. After early-differentiating first heart field (FHF) progenitors form the linear heart tube, late-differentiating second heart field (SHF) progenitors extend the atrium and ventricle, and ...
Anastasia Felker +7 more
semanticscholar +1 more source
Journal of Cardiovascular Development and Disease, 2018 3′-5′-cyclic adenosine monophosphate (cAMP) is a signaling messenger produced in response to the stimulation of cellular receptors, and has a myriad of functional applications depending on the cell type.
Navneet K. Bhogal +2 more
doaj +1 more source
Transthoracic three-dimensional echocardiography for the assessment of straddling tricuspid or mitral valves [PDF]
, 2008 Background The advent of 3D echocardiography has provided a technique which, potentially, could afford significant additional information over conventional cross-sectional echocardiography in the assessment of patients with straddling atrioventricular ...
Anderson, RH +3 more
core +1 more source
Frontiers in Bioengineering and Biotechnology, 2023 Introduction: Fibroblasts are mesenchymal cells that predominantly produce and maintain the extracellular matrix (ECM) and are critical mediators of injury response.
Martha E. Floy +13 more
doaj +1 more source
Nonaxisymmetric mathematical model of the cardiac left ventricle anatomy [PDF]
, 2013 We describe a mathematical model of the shape and fibre direction field of the cardiac left ventricle. The ventricle is composed of surfaces which model myocardial sheets.
Pravdin, Sergei
core
Building the Right Ventricle [PDF]
Circulation Research, 2007 See related article, pages 1000–1007 Abnormal development of the arterial pole of the heart underlies a significant fraction of congenital heart defects. Critical steps in arterial pole development are formation of the myocardial outflow tract (or conotruncal region) and its subsequent division into separate left and right ventricular outlets ...
openaire +4 more sources
Semi-Supervised Segmentation of Multi-vendor and Multi-center Cardiac MRI using Histogram Matching [PDF]
IEEE Conference on Signal Processing and Communications
applications (SIU 2021), 2023 Automatic segmentation of the heart cavity is an essential task for the diagnosis of cardiac diseases. In this paper, we propose a semi-supervised segmentation setup for leveraging unlabeled data to segment Left-ventricle, Right-ventricle, and Myocardium. We utilize an enhanced version of residual U-Net architecture on a large-scale cardiac MRI dataset.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi +6 more
wiley +1 more source