Texture-based classification of atherosclerotic carotid plaques
نویسندگان
چکیده
منابع مشابه
ABCA1 expression in carotid atherosclerotic plaques.
BACKGROUND AND PURPOSE The ATP-binding cassette transporter A1 (ABCA1) facilitates cholesterol efflux from cells, a key process in reverse cholesterol transport. Whereas previous investigations focused on mutations causing impaired ABCA1 function, we assessed the role of ABCA1 in human carotid atherosclerotic disease. METHODS We compared the mRNA and protein levels of ABCA1, and one of its ke...
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The extraction of features characterizing the structure of atherosclerotic carotid plaques, obtained by high-resolution ultrasound imaging is important for the correct plaque classification and the estimation of the risk of stroke. In this study morphological features were extracted and compared with the well-known texture features spatial gray level dependence matrices (SGLDM), gray level diff...
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Stroke is a leading cause of mortality and long-term morbidity. As a means for stroke prevention, an estimated 99,000 carotid endarterectomy procedures were performed in the USA in 2006. Traditionally, the degree of luminal stenosis has been used as a marker of the stage of atherosclerosis and as an indication for surgical intervention. However, prospective clinical trials have shown that the m...
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The aim of this study was to investigate the usefiilness of gray scale morphological analysis in the assessment of atherosclerotic carotid plagues. Ultrasound images were recorded from 137 asymptomatic and 137 symptomatic plaques (Stroke, Transient Ischaemic Attack -TIA, Amaurosis Fugax-AF). The morphological pattern spectra of gray scale images were computed and two different classifiers named...
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Background Clinical studies that have measured plaque T2 times were mostly performed ex-vivo using a small number of plaques excised from different arterial locations and imaged at different field strength using a limited number of TEs. The Table shows that T2 measured in the lipidrich necrotic core (LRNC) was consistently shorter than T2 in fibrous tissue or in normal media, which showed simil...
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ژورنال
عنوان ژورنال: IEEE Transactions on Medical Imaging
سال: 2003
ISSN: 0278-0062
DOI: 10.1109/tmi.2003.815066