View clinical trials related to Atherosclerosis.
Filter by:: Use of novel radio-pharmaceutical 64CUDOTA-ECL1i to evaluate arterial atherosclrosis
The purpose of this collaboration is to establish a multi-modality image database including coronary angiograms, optical coherence tomography (OCT), computed tomography angiograms (CTA) and cardiac magnetic resonance imaging (CMR) for future studies. The main goal of this collaboration is to create a resource to promote further understanding of the pathobiology of atherosclerosis through image analysis.
This study aims to conduct a randomized, double blind, randomised controlled multicentre trial of sirolimus drug coated balloon versus standard percutaneous transluminal angioplasty for the treatment of below the knee arterial disease.
This study aims to conduct a randomized, double blind, randomised controlled multicentre trial of sirolimus drug coated balloon versus standard percutaneous transluminal angioplasty for the treatment of superficial and popliteal arterial disease.
This study aims to evaluate the effect of 8 weeks of a stress reduction intervention on atherosclerotic plaque inflammation in adults with stable coronary artery disease, as quantified by positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) in individuals with increased psychosocial stress.
The plot study aims to evaluate the effect of 8 weeks of stress reducing intervention on atherosclerotic plaque inflammation in adults, as quantified by positron emission tomography (PET) with fluorine-2-deoxy-D-glucose (FDG) in individuals with increased psychosocial stress.
Objectives of Medical Research: Separation of LDL and HDL from blood samples of patients with high LDL and / or low HDL who have developed atherosclerotic disease with similar patients who have no evidence of atherosclerosis. Lipidomics and proteomics will examine whether there is a difference in lipid and protein composition and lipoprotein composition. If there are any changes in expression level or the composition of proteins or metabolites that make up lipoproteins, the investigator will try to figure out the mechanism responsible for these changes and their role in the metabolic process. the investigator will seek therapeutic measures through which these mechanisms can be inhibited and thus inhibit the development of sclerosis or even retraction.
Stroke is the second leading cause of death in the Western world and the leading cause of major lifelong disability. About 15% of strokes are secondary to thrombosis or embolization of an unstable atheromatous carotid plaque. In these symptomatic patients, the degree of carotid stenosis is correlated with the risk of early recurrence. Patients with stenosis over 70% are therefore offered an endarterectomy, an operation to remove carotid plaque, to prevent future strokes[1]. In asymptomatic patients, the degree of stenosis is a limited predictor, and better risk stratification is required to assess the degree of plaque vulnerability and stroke risk of the patient. The therapeutic decision towards endarterectomy in addition to drug therapy is debated because of a variable and dependent benefit/risk balance for each patient. A number of imaging parameters have been studied: ulceration, heterogeneity, vascularization of the plaque for example, but their place is not well defined [2]. The usual evaluation of carotid stenosis is by conventional Doppler ultrasound with calculation of the degree of stenosis according to the NASCET criteria. For symptomatic stenoses the intervention is recommended when above 70% and is discussed from 50% to 70% of NASCET stenosis degree. For asymptomatic stenoses, the procedure is discussed when above 60% taking into account the patient's life expectancy, the risk of the surgery and the unstable nature of the plaque [2]. Destabilization of the carotid plaque is partially induced by inflammation associated with neo-vascularization. The detection of these new vessels by conventional contrast ultrasound has already shown a distinction between stable and unstable plaques, by the presence or absence of microbubbles in the plaque. However, this assessment is not very precise and only the most vascularized plaques can be detected. Ultrafast ultrasound Imaging is a new ultrasonic Imaging modality that allows detecting low speed flows, a tiny vascular structure within the vessel wall. RESEARCH HYPOTHESIS Plaques neo-vascularization would be more precisely detected and characterized by ultrafast imaging coupled with microbubble injection than conventional ultrasound imaging. A better assessment of plaque instability could improve the selection of patients for carotid endarterectomy and increase the benefit/risk ratio of this preventive surgery.
Develop adverse event prediction and plaque phenotype classification models for patients with known or suspected carotid artery disease.
Continuous Doppler ankle brachial index (ABI) is the gold standard for screening and monitoring of peripheral arterial disease (PAD) but is no longer carried out in clinical practice. The recommended measurement was gradually replaced by colour or pulsed Doppler without validation of these techniques. The objective of our study is to compare these two techniques (color Doppler and pulsed Doppler in echodoppler) with respect to the gold standard (continuous Doppler) for ABI measurement.