Results 21 to 30 of about 24,411 (170)
Repeat coronary angioplasty as treatment for restenosis
Journal of the American College of Cardiology, 1992 Repeat coronary angioplasty has become the standard approach to a first restenosis. However, the long-term outcome of such a strategy is not well defined. In the present study, 465 patients (mean age 58 years [range 27 to 79], 53% with multivessel disease) underwent a second angioplasty procedure at the same site.
Irving Franco +7 more
openaire +3 more sources
Non-intrusive and semi-intrusive uncertainty quantification of a multiscale in-stent restenosis model [PDF]
, 2020 Uncertainty estimations are presented of the response of a multiscale in-stent restenosis model, as obtained by both non-intrusive and semi-intrusive uncertainty quantification. The in-stent restenosis model is a fully coupled multiscale simulation of post-stenting tissue growth, in which the most costly submodel is the blood flow simulation. Surrogate
arxiv +1 more source
Restenosis and progression of coronary atherosclerosis after coronary angioplasty
Journal of the American College of Cardiology, 1988 The relation between restenosis and progression of atherosclerosis in other coronary segments after angioplasty was studied in 98 consecutive patients with 110 coronary stenoses successfully treated with angioplasty. At early angiographic restudy (5 +/- 2 months after angioplasty) 37 patients (38%) had restenosis (defined as a stenosis greater than or ...
Angel Cequier +7 more
openaire +3 more sources
Network-Based Approach for Modeling and Analyzing Coronary Angiography [PDF]
, 2019 Significant intra-observer and inter-observer variability in the interpretation of coronary angiograms are reported. This variability is in part due to the common practices that rely on performing visual inspections by specialists (e.g., the thickness of coronaries). Quantitative Coronary Angiography (QCA) approaches are emerging to minimize observer's
arxiv +1 more source
Cytomegalovirus Infection and Coronary Restenosis [PDF]
Circulation, 1999 Current techniques of percutaneous transluminal coronary revascularization remain limited by the phenomenon of restenosis. The response of the vessel wall to the iatrogenic injury associated with coronary interventions is a complex and multifactorial process. Experimental and clinical studies suggest that a combination of different mechanisms, such as (
Michel E. Bertrand, Christophe Bauters
openaire +2 more sources
A Recurrent CNN for Automatic Detection and Classification of Coronary Artery Plaque and Stenosis in Coronary CT Angiography [PDF]
, 2018 Various types of atherosclerotic plaque and varying grades of stenosis could lead to different management of patients with coronary artery disease. Therefore, it is crucial to detect and classify the type of coronary artery plaque, as well as to detect and determine the degree of coronary artery stenosis.
arxiv +1 more source
Hyper Association Graph Matching with Uncertainty Quantification for Coronary Artery Semantic Labeling [PDF]
arXiv, 2023 Coronary artery disease (CAD) is one of the primary causes leading to death worldwide. Accurate extraction of individual arterial branches on invasive coronary angiograms (ICA) is important for stenosis detection and CAD diagnosis. However, deep learning-based models face challenges in generating semantic segmentation for coronary arteries due to the ...
arxiv
Beta-radiation for coronary in-stent restenosis [PDF]
Catheterization and Cardiovascular Interventions, 2000 To determine the feasibility and safety of an intracoronary beta-radiation device in preventing the recurrence of in-stent restenosis (ISR) after successful angioplasty, we studied 37 patients treated with beta-radiation (30-mm strontium-90 source) after angioplasty.
Philippe Coucke +6 more
openaire +3 more sources
In-silico Analysis of Hemodynamic Indicators in Idealized Stented Coronary Arteries for Varying Stent Indentation [PDF]
In this work, we investigate the effects of stent indentation on hemodynamic indicators in stented coronary arteries. Our aim is to assess in-silico risk factors for in-stent restenosis (ISR) and thrombosis after stent implantation. The proposed model is applied to an idealized artery with Xience V stent for four indentation percentages and three mesh ...
arxiv +1 more source
Construction of Nano-Assembled Microcapsules Embedded with Gold Nanoparticles for use in Novel Drug Delivery Systems [PDF]
arXiv, 2016 Coronary stents have changed the way in which coronary artery diseases are managed. Although bare-metal stents can be traced back to 1994, long term efficacy of these stents has been shattered by ISR (In-Stent restenosis) and late stent thrombosis. Research on finding a solution to these issues has led to the development of DESs (Drug eluting stents ...
arxiv