نتایج جستجو برای: calcified plaque
تعداد نتایج: 40537 فیلتر نتایج به سال:
False-negative results of coronary artery calcium score (CACS) are common due to small calcified lesions being missed using a 3-mm slice thickness, a threshold of 130 Hounsfield units (HU) and a minimum area of 1 mm(2) for defining a calcified plaque. In contrast, false-positive results of CACS, as verified by a lack of coronary artery calcifications in computed tomography coronary angiogram (C...
Background—Pathological studies suggest that calcified coronary nodules are a rare cause of thrombotic events. The frequency, distribution, predictors, and outcomes of calcified nodules have never been described. Methods and Results—After successful stenting in 697 patients (167 female; median age, 58.1 years) with acute coronary syndromes, 3-vessel gray-scale and virtual histology intravascula...
BACKGROUND The purpose of this prospective study was to perform a head-to-head comparison of the two methods most frequently used for evaluation of carotid plaque characteristics: Multi-detector Computed Tomography Angiography (MDCTA) and black-blood 3 T-cardiovascular magnetic resonance (bb-CMR) with respect to their ability to identify symptomatic carotid plaques. METHODS 22 stroke unit pat...
OBJECTIVES We evaluated the accuracy of contrast-enhanced multidetector spiral computed tomography (MDCT) for the noninvasive detection and classification of coronary plaques and compared it with intracoronary ultrasound (ICUS). BACKGROUND Noninvasive determination of plaque composition and plaque burden may be important to improve risk stratification and to monitor progression of coronary at...
Background—Intravascular brachytherapy is being applied more and more in patients with coronary artery disease for the prevention of restenosis subsequent to balloon angioplasty, in particular after stent implantation. Several radiation sources ( and -emitters) are available in clinical routine. It was the purpose of this study to compare the radiation doses at the level of the adventitia in di...
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