Results 11 to 20 of about 108,018 (123)
Comorbid CAD and Ventricular Hypertrophy Compromise The Perfusion of Myocardial Tissue at Subcritical Stenosis of Epicardial Coronaries [PDF]
, 2018 BACKGROUND: Most studies of CAD revascularization have been based on and reported according to angiographic criteria which don't consider the relation between the resulting effective flow distal to the stenosis and the demand of a hypertrophied myocardial tissue.
arxiv +1 more source
Deep Predictive Learning of Carotid Stenosis Severity [PDF]
arXiv, 2021 Carotid artery stenosis is the narrowing of carotid arteries, which supplies blood to the neck and head. In this work, we train a model to predict the severity of the stenosis blockage based on SRUC criteria variables and other patient information. We implement classic machine learning methods, decision trees and random forests, used in a previous ...
arxiv
Numerical modelling of a peripheral arterial stenosis using dimensionally reduced models and kernel methods [PDF]
, 2018 In this work, we consider two kinds of model reduction techniques to simulate blood flow through the largest systemic arteries, where a stenosis is located in a peripheral artery i.e. in an artery that is located far away from the heart. For our simulations we place the stenosis in one of the tibial arteries belonging to the right lower leg (right post
arxiv +1 more source
Simulation-Based Design of Bicuspidization of the Aortic Valve [PDF]
arXiv, 2023 Objective: Severe congenital aortic valve pathology in the growing patient remains a challenging clinical scenario. Bicuspidization of the diseased aortic valve has proven to be a promising repair technique with acceptable durability. However, most understanding of the procedure is empirical and retrospective.
arxiv
A Federated Learning Framework for Stenosis Detection [PDF]
arXiv, 2023 This study explores the use of Federated Learning (FL) for stenosis detection in coronary angiography images (CA). Two heterogeneous datasets from two institutions were considered: Dataset 1 includes 1219 images from 200 patients, which we acquired at the Ospedale Riuniti of Ancona (Italy); Dataset 2 includes 7492 sequential images from 90 patients ...
arxiv
On 1-D PDE-Based Cardiovascular Flow Bottleneck Modeling and Analysis: A Vehicular Traffic Flow-Inspired Approach [PDF]
arXiv, 2021 We illustrate the potential of PDE-based traffic flow control in cardiovascular flow analysis, monitoring, and control, presenting a PDE-based control-oriented formulation, for 1-D blood flow dynamics in the presence of stenosis. This is achieved adopting an approach for modeling and analysis that relies on the potential correspondence of 1-D blood ...
arxiv
Commissurotomy for Mitral Stenosis [PDF]
Circulation, 1950 The term "mitral commissurotomy" has been suggested to designate a procedure in which the individual anatomic leaflets of the stenotic mitral valve are surgically separated. By incising the angles or commissures of the mitral slit ("fish-mouth") a considerable degree of valve function can be re-established without the production of additional ...
Robert P. Glover +2 more
openaire +7 more sources
CNN-CASS: CNN for Classification of Coronary Artery Stenosis Score in MPR Images [PDF]
25th Computer Vision Winter Workshop, 2020, 2020 To decrease patient waiting time for diagnosis of the Coronary Artery Disease, automatic methods are applied to identify its severity using Coronary Computed Tomography Angiography scans or extracted Multiplanar Reconstruction (MPR) images, giving doctors a second-opinion on the priority of each case.
arxiv