نتایج جستجو برای: scad
تعداد نتایج: 633 فیلتر نتایج به سال:
Spontaneous coronary artery dissection SCAD is a rare condition which may result in sudden coronary occlusion, acute myocardial infarction and sudden cardiac death. The prognosis of spontaneous coronary artery dissection is uncertain and optimal treatment is unknown. We describe a case of SCAD in a 29-year-old male with acute inferior wall myocardial infarction MI and post-MI angina that was tr...
Estimating the images using decimated wavelet transform is very popular technique in different applications. In this paper a new thresholding function with combination of Smoothly Clipped Absolute Deviation (SCAD), Hard thresholding and soft thresholding functions are introduced for wavelet based denoising of images. The proposed technique is applied for denoising of noisy images contaminated w...
This paper extends the adaptive LASSO (ALASSO) for simultaneous parameter estimation and variable selection to a varying-coefficient partially linear model where some of the covariates are subject to measurement errors of an additive form. We draw comparisons with the SCAD, and prove that both the ALASSO and SCAD attain the oracle property under this setup. We further develop an algorithm in th...
Spontaneous coronary artery dissection (SCAD) is a very rare disease, associated with high mortality rate, whose etiology and pathogenesis are poorly understood. Its sporadic nature and the varied angiographic extent make firm recommendations regarding revascularization impossible. The case described is that of a young, otherwise healthy woman, without a known underlying condition which may lea...
BACKGROUND AND PURPOSE The pathogenesis of spontaneous cervical artery dissections (sCAD) and its best medical treatment are debated. This may be due to a lack of clear classification of sCAD. We propose the new Borgess classification of sCAD, based on the presence or absence of intimal tear as depicted on imaging studies and effect on blood flow. MATERIALS AND METHODS This is a single-center...
BACKGROUND The role of vaspin in the pathogenesis of stable coronary artery disease (SCAD) have been repeatedly addressed in clinical studies. However, from the point of view of clinical practice, the results of earlier studies are still inconclusive. METHODS The data of 106 SCAD patients who received coronary angiography and 85 coronary artery disease-free controls were collected and analyse...
Background: Effective management of stable coronary artery disease (SCAD) relies on early detection of coronary atherosclerosis. The objective was to evaluate diagnostic accuracy and risk stratification of SCAD patients by high sensitivity C reactive protein (hs CRP), Myeloperoxidase (MPO) and Pregnancy Associated Plasma Protein-A (PAPP-A). Methods: Validation study was conducted at Pathology D...
Abstract Background Spontaneous coronary artery dissection (SCAD) is a non-atherosclerotic cause of myocardial infarction unclear aethiology. Histopathological analyses have identified increased inflammation in patients with SCAD [1]. Recently the peri-coronary adipose tissue attenuation (PCAT) derived from standard computed tomography angiography (CTA) has been established as reproducible meth...
BACKGROUND Coronary artery disease is mainly caused by atherosclerosis and its complications. Platelets and their activity have an important role in initiation of atherosclerotic lesions and coronary thrombus formation. Larger platelets are enzymatically and metabolically more active and have a higher potential thrombotic ability as compared with smaller platelets. AIMS To study the changes i...
Background: Artificial coronary artery dissection is observed occasionally during percutaneous coronary intervention. However, “spontaneous” coronary artery dissection (SCAD) is not common and we tried to clarify its characteristics. Methods and Results: We reviewed the serial diagnostic coronary angiograms of 21,500 patients retrospectively. Sixty-two patients showed linear, longitudinal defec...
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