Results 11 to 20 of about 10,474 (75)

Detecting Heart Disease from Multi-View Ultrasound Images via Supervised Attention Multiple Instance Learning [PDF]

open access: yesMLHC 2023, 2023
Aortic stenosis (AS) is a degenerative valve condition that causes substantial morbidity and mortality. This condition is under-diagnosed and under-treated. In clinical practice, AS is diagnosed with expert review of transthoracic echocardiography, which produces dozens of ultrasound images of the heart.
arxiv  

CardioXNet: A Novel Lightweight Deep Learning Framework for Cardiovascular Disease Classification Using Heart Sound Recordings [PDF]

open access: yes, 2020
The alarmingly high mortality rate and increasing global prevalence of cardiovascular diseases signify the crucial need for early detection schemes. Phonocardiogram (PCG) signals have been historically applied in this domain owing to its simplicity and cost-effectiveness.
arxiv   +1 more source

A new technological system to revolutionize the management of valvular heart diseases: transcatheter aortic valve for the treatment of aortic stenosis [PDF]

open access: yesarXiv, 2019
The goal of this study is a technology analysis of a revolution for the management of valvular heart diseases given by new technological system based on transcatheter artificial aortic valve, a delivery catheter and a loading system for the treatment of aortic stenosis (a narrowing of the aortic valve because of calcium build up that restricts blood ...
arxiv  

The Influence of the Aortic Root Geometry on Flow Characteristics of a Bileaflet Mechanical Heart Valve [PDF]

open access: yesarXiv, 2018
Bileaflet mechanical heart valves have one of the most successful valve designs for more than 30 years. These valves are often used for aortic valve replacement, where the geometry of the aortic root sinuses may vary due to valvular disease and affect valve performance. Common geometrical sinus changes may be due to valve stenosis and insufficiency. In
arxiv  

Immersed boundary-finite element model of fluid-structure interaction in the aortic root [PDF]

open access: yes, 2015
It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in vivo imaging data become available.
arxiv   +1 more source

Assimilated LVEF: A Bayesian technique combining human intuition with machine measurement for sharper estimates of left ventricular ejection fraction and stronger association with outcomes [PDF]

open access: yesarXiv, 2018
The cardiologist's main tool for measuring systolic heart failure is left ventricular ejection fraction (LVEF). Trained cardiologist's report both a visual and machine-guided measurement of LVEF, but only use this machine-guided measurement in analysis.
arxiv  

Advancing aortic stenosis assessment: validation of fluid-structure interaction models against 4D flow MRI data [PDF]

open access: yesarXiv
Systematic in vivo validations of computational models of the aortic valve remain scarce, despite successful validation against in vitro data. Utilizing a combination of computed tomography and 4D flow magnetic resonance imaging data, we developed patient-specific fluid-structure interaction models of the aortic valve immersed in the aorta for five ...
arxiv  

Cineradiographic Studies of the Early Systolic Click in Aortic Valve Stenosis [PDF]

open access: bronze, 1965
Ellis J. Epstein   +4 more
openalex   +1 more source

Development of a patient-specific finite element model of the Transcatheter Aortic Valve Implantation (TAVI) procedure [PDF]

open access: yesarXiv, 2019
This work reports on a study to develop a patient-specific finite element model of the Transcatheter Aortic Valve Implantation procedure, using a model of a balloon-expandable percutaneous prosthetic aortic valve as a framework for the prediction of its performance.
arxiv  

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