Results 161 to 170 of about 398,963 (376)

Intraventricular dyssynchrony in light chain amyloidosis: a new mechanism of systolic dysfunction assessed by 3-dimensional echocardiography [PDF]

, 2008
Background Light chain amyloidosis (AL) is a rare but often fatal disease due to intractable heart failure. Amyloid deposition leads to diastolic dysfunction and often preserved ejection fraction.
A Dispenzieri, AG Siqueira-Filho, AL Klein, AL Klein, AM Maceira, B Rosner, D Bellavia, DW Sohn, GB Bleeker, GB Bleeker, GH Baker, H Vogelsberg, J Koyama, J Koyama, JG Cleland, JG Cleland, JM Bland, JM Bland, JN Kirkpatrick, JS Gottdiener, Leanne Harmann, M Skinner, Megan Bright, MP Sampat, MR Bristow, NB Schiller, Parameswaran Hari, RA Kyle, RA Kyle, RA Kyle, Raymond Q Migrino, RB Devereux, RH Falk, RH Falk, RL Comenzo, RM Lang, S Arques, S Ghio, S Kapetanakis, Seth Truran, SF Nagueh, SR Ommen, SW Dubrey, Timothy Woods, V Sanchorawala, X Zeng   +45 more
core   +3 more sources

Assessment of left ventricular ejection fraction in artificial intelligence based on left ventricular opacification

DIGITAL HEALTH
Background Left ventricular opacification (LVO) improves the accuracy of left ventricular ejection fraction (LVEF) by enhancing the visualization of the endocardium. Manual delineation of the endocardium by sonographers has observer variability.
Ye Zhu, Zisang Zhang, Junqiang Ma, Yiwei Zhang, Shuangshuang Zhu, Manwei Liu, Ziming Zhang, Chun Wu, Chunyan Xu, Anjun Wu, Chenchen Sun, Xin Yang, Yonghuai Wang, Chunyan Ma, Jun Cheng, Dong Ni, Jing Wang, Mingxing Xie, Wufeng Xue, Li Zhang   +19 more
openaire   +3 more sources

Cardiac MR Image Segmentation Techniques: an overview [PDF]

arXiv, 2015
Broadly speaking, the objective in cardiac image segmentation is to delineate the outer and inner walls of the heart to segment out either the entire or parts of the organ boundaries. This paper will focus on MR images as they are the most widely used in cardiac segmentation -- as a result of the accurate morphological information and better soft ...
arxiv  

A Combined Deep-Learning and Deformable-Model Approach to Fully Automatic Segmentation of the Left Ventricle in Cardiac MRI [PDF]

arXiv, 2015
Segmentation of the left ventricle (LV) from cardiac magnetic resonance imaging (MRI) datasets is an essential step for calculation of clinical indices such as ventricular volume and ejection fraction. In this work, we employ deep learning algorithms combined with deformable models to develop and evaluate a fully automatic segmentation tool for the LV ...
arxiv  

Left ventricular ejection fraction: clinical, pathophysiological, and technical limitations

Frontiers in Cardiovascular Medicine
Risk stratification of cardiovascular death and treatment strategies in patients with heart failure (HF), the optimal timing for valve replacement, and the selection of patients for implantable cardioverter defibrillators are based on an echocardiographic calculation of left ventricular ejection fraction (LVEF) in most guidelines.
Vancheri, Federico, Longo, Giovanni, Henein, Michael Y.   +2 more
openaire   +4 more sources

A Computer Vision Pipeline for Automated Determination of Cardiac Structure and Function and Detection of Disease by Two-Dimensional Echocardiography [PDF]

arXiv, 2017
Automated cardiac image interpretation has the potential to transform clinical practice in multiple ways including enabling low-cost serial assessment of cardiac function in the primary care and rural setting. We hypothesized that advances in computer vision could enable building a fully automated, scalable analysis pipeline for echocardiogram (echo ...
arxiv  

Prognostic significance of left ventricular ejection fraction after acute myocardial infarction. A bedside radionuclide study. [PDF]

, 1985
Michael Kelly, Peter L. Thompson, Marina Quinlan   +2 more
openalex   +1 more source

Single-chamber Versus Dual-chamber Implantable Cardioverter Defibrillators: Do We Need Physiologic Pacing in The Course? [PDF]

, 2006
Background: Many patients with ICD receive different antiarrhythmic drugs (e.g. sotalol, amiodarone, β-blockers) because of ventricular or atrial tachycardias.
Buck, Thomas, Budeus, Marco, Erbel, Raimund, Sack, Stefan, Wieneke, Heinrich   +4 more
core   +2 more sources

Prenatal Brain Abnormalities in Sodium‐Dependent Multivitamin Transporter Deficiency

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT In treatable neurometabolic disorders, early diagnosis and prompt initiation of treatment are key to improved survival and outcomes. Biallelic variants in SLC5A6 cause sodium‐dependent multivitamin transporter deficiency (OMIM # 618973), which is treatable with high‐dose pantothenic acid, biotin, and alpha lipoic acid.
Eri Ogawa, Kenjiro Kosaki, Toshiki Takenouchi   +2 more
wiley   +1 more source

$ν$-net: Deep Learning for Generalized Biventricular Cardiac Mass and Function Parameters [PDF]

arXiv, 2017
Background: Cardiac MRI derived biventricular mass and function parameters, such as end-systolic volume (ESV), end-diastolic volume (EDV), ejection fraction (EF), stroke volume (SV), and ventricular mass (VM) are clinically well established. Image segmentation can be challenging and time-consuming, due to the complex anatomy of the human heart ...
arxiv