Results 41 to 50 of about 859,972 (336)

Automatic extraction of coronary arteries using deep learning in invasive coronary angiograms [PDF]

open access: yes, 2022
Accurate extraction of coronary arteries from invasive coronary angiography (ICA) is important in clinical decision-making for the diagnosis and risk stratification of coronary artery disease (CAD). In this study, we develop a method using deep learning to automatically extract the coronary artery lumen. Methods.
arxiv   +1 more source

Association of insulin resistance, insulin and leptin levels with coronary in-stent restenosis

open access: yesThe Egyptian Heart Journal, 2012
Background: In-stent restenosis remains the major limitation of coronary stent implantation. Leptin is a hormone strongly related to insulin resistance (IR).
Amira Shoukry   +2 more
doaj   +1 more source

Effects of an alpha-4 integrin inhibitor on restenosis in a new porcine model combining endothelial denudation and stent placement. [PDF]

open access: yesPLoS ONE, 2010
Restenosis remains the main complication of balloon angioplasty and/or stent implantation. Preclinical testing of new pharmacologic agents preventing restenosis largely rely on porcine models, where restenosis is assessed after endothelial abrasion of ...
Anne Braun   +7 more
doaj   +1 more source

Use of Nuclear Magnetic Resonance Imaging Angiography to Follow-Up Arterial Remodeling in an Animal Model [PDF]

open access: yes, 1998
Appropriately sized arteries in small animals may be possible models for studying the remodeling process as occurs after arterial balloon injury in humans. Magnetic resonance imaging (MRI) is able to noninvasively image tissue in vivo.
Berthold Höfling   +9 more
core   +1 more source

Periodontitis Is Associated With Risk of Conventional Stent Restenosis: Pilot Case-Control Study

open access: yesFrontiers in Dental Medicine, 2021
Objectives: Percutaneous coronary angioplasty with stent implantation has been established as the main form of treatment of atherosclerosis. However, 16 to 44% of patients may evolve with stent restenosis.
Raphael Osugue   +6 more
doaj   +1 more source

Pathogenetic mechanisms of repeated adverse cardiovascular events development in patients with coronary heart disease: the role of chronic inflammation [PDF]

open access: yesFolia Medica, 2023
Stent restenosis is the most unfavorable complication of interventional treatment for coronary heart disease. We already know from various literature sources that the causes for stent restenosis in patients are both mechanical damage (partial opening ...
Irina Starodubtseva   +2 more
doaj   +3 more sources

A multiphysics modeling approach for in-stent restenosis: Theoretical aspects and finite element implementation [PDF]

open access: yesarXiv, 2022
Development of in silico models are intrinsic in understanding disease progression in soft biological tissues. Within this work, we propose a fully-coupled Lagrangian finite element framework which replicates the process of in-stent restenosis observed post stent implantation in a coronary artery.
arxiv  

Pathogen burden, inflammation, proliferation and apoptosis in human in-stent restenosis - Tissue characteristics compared to primary atherosclerosis [PDF]

open access: yes, 2004
Pathogenic events leading to in-stent restenosis (ISR) are still incompletely understood. Among others, inflammation, immune reactions, deregulated cell death and growth have been suggested. Therefore, atherectomy probes from 21 patients with symptomatic
Abdelmegui AE   +24 more
core   +1 more source

Stent implant follow-up in intravascular optical coherence tomography images [PDF]

open access: yes, 2009
The objectives of this article are (i) to utilize computer methods in detection of stent struts imaged in vivo by optical coherence tomography (OCT) during percutaneous coronary interventions (PCI); (ii) to provide measurements for the assessment ...
Carlier, Stephane Guy   +4 more
core   +2 more sources

Coronary restenosis elimination with a sirolimus eluting stent; First European human experience with 6-month angiographic and intravascular ultrasonic follow-up [PDF]

open access: bronzeEuropean Heart Journal, 2001
AIMS Coronary stenting is limited by a 10%-60% restenosis rate due to neointimal hyperplasia. Sirolimus is a macrocyclic lactone agent that interacts with cell-cycle regulating proteins and inhibits cell division between phases G1 and S1.
Benno J. Rensing
openalex   +2 more sources

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