Results 21 to 30 of about 167,722 (208)

Measurement of pressure and assessment of cavitation for a 22.5-kHz intra-arterial angioplasty device [PDF]

open access: yes, 1996
This study was performed to understand better the mechanisms of action of an (22.5 kHz) ultrasonic wire catheter device used to remove atheromatous plaque in diseased blood vessels (ultrasonic angioplasty).
Everbach, E. Carr, Makin, I. R. S.
core   +2 more sources

Acute myocardial infarction in progressively elderly patients. A comparative analysis of immediate results in patients who underwent primary percutaneous coronary intervention

open access: yesArquivos Brasileiros de Cardiologia, 2001
OBJECTIVE: Analysis of the in-hospital results, in progressively elderly patients who undergo primary percutaneous coronary intervention (PCI) in the first 24 hours of AMI. METHODS: The patients were divided into three different age groups (60/69, 70/79,
Luiz Alberto Mattos   +13 more
doaj   +1 more source

Usage of excimer laser in coronary and peripheral artery stenosis – analysis of its safety aspect

open access: yesJournal of Pre-Clinical and Clinical Research, 2020
Introduction The technology of laser atherectomy has been known for about 20 years. Initial studies were not encouraging due to similar or lower efficacy compared to conventional angioplasty and greater complication rate.
Piotr Artur Machowiec   +2 more
doaj   +1 more source

Robust Landmark-based Stent Tracking in X-ray Fluoroscopy [PDF]

open access: yesarXiv, 2022
In clinical procedures of angioplasty (i.e., open clogged coronary arteries), devices such as balloons and stents need to be placed and expanded in arteries under the guidance of X-ray fluoroscopy. Due to the limitation of X-ray dose, the resulting images are often noisy.
arxiv  

Efficient isogeometric thin shell formulations for soft biological materials [PDF]

open access: yesBiomech Model Mechanobiol (2017) 16:1569, 2016
This paper presents three different constitutive approaches to model thin rotation-free shells based on the Kirchhoff-Love hypothesis. One approach is based on numerical integration through the shell thickness while the other two approaches do not need any numerical integration and so they are computationally more efficient. The formulation is designed
arxiv   +1 more source

Stent insertion and balloon angioplasty for portal vein stenosis after liver transplantation: long-term follow-up results

open access: yesDiagnostic and Interventional Radiology, 2019
PURPOSEIt is not easy to determine whether balloon angioplasty or stenting should be performed in patients with portal vein stenosis after liver transplantation.
Kyeong Sik Kim   +5 more
doaj   +1 more source

A Synopsis of Stent Graft Technology Development [PDF]

open access: yesarXiv, 2023
Coronary artery disease (CAD) is a leading cause of death worldwide. Treatments have evolved, with stenting becoming the primary approach over bypass surgery. This article reviews the evolution of coronary stent technology, starting from the first angioplasty in 1977. Pioneers like Forssmann, Dotter, and Gruentzig established the foundation.
arxiv  

Gradient-enhanced continuum models of healing in damaged soft tissues [PDF]

open access: yesBiomechanics and Modeling in Mechanobiology, Springer Verlag, 2019, 18 (5), pp.1443-1460, 2019
Healing of soft biological tissue is the process of self-recovering or self-repairing the injured or damaged extracellular matrix (ECM). Healing is assumed to be stress-driven, with the objective of returning to a homeostatic stress metrics in the tissue after replacing the damaged ECM with new undamaged one.
arxiv   +1 more source

Five year prognosis in patients with angina identified in primary care : incident cohort study [PDF]

open access: yes, 2009
Peer reviewedPublisher ...
Buckley, Brian S   +4 more
core   +2 more sources

Rounded notch method of femoral endarterectomy offers mechanical advantages in finite element models [PDF]

open access: yesarXiv, 2023
Objective: Use of a vascular punch to produce circular heel and toe arteriotomies for femoral endarterectomy with patch angioplasty is a novel technique. This study investigated the plausibility of this approach and the mechanical advantages of the technique using finite element models.
arxiv  

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