1983
DOI: 10.1016/0002-9610(83)90370-7
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Carotid plaque histology using real-time ultrasonography

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Cited by 329 publications
(114 citation statements)
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“…14 -16 In our study, carotid plaques were classified as complex or simple, depending on their echogenic features and surface morphology. Histological evidence suggests that homogeneous echogenicity is found in collagenrich, fibrous plaques, and heterogeneous echogenicity is found in lipid-rich or hemorrhagic plaques, 14,15 usually associated with an increased number of macrophages. 19 The value of such classification is supported by its prognostic significance, because echolucent (complex) carotid plaques were found to be associated not only with a 3-fold-higher risk of ipsilateral ischemic stroke but also with a 2-fold-higher risk of cardiac ischemic events than echorich (simple) carotid plaques.…”
Section: Discussionmentioning
confidence: 99%
“…14 -16 In our study, carotid plaques were classified as complex or simple, depending on their echogenic features and surface morphology. Histological evidence suggests that homogeneous echogenicity is found in collagenrich, fibrous plaques, and heterogeneous echogenicity is found in lipid-rich or hemorrhagic plaques, 14,15 usually associated with an increased number of macrophages. 19 The value of such classification is supported by its prognostic significance, because echolucent (complex) carotid plaques were found to be associated not only with a 3-fold-higher risk of ipsilateral ischemic stroke but also with a 2-fold-higher risk of cardiac ischemic events than echorich (simple) carotid plaques.…”
Section: Discussionmentioning
confidence: 99%
“…Some of these associations have been disputed, however, with other investigators failing to demonstrate more frequent symptoms associated with ulcerations 14,21 and plaque hemorrhage. 23,24 The documented ability of B-mode ultrasonographic scanning to detect plaque ulceration, 25 heterogeneity, 26,27 and hemorrhage, 28 though disputed by some, 24,29,30 has led to the demonstration that these ultrasound-defined characteristics are also associated with ipsilateral neurologic symptoms, 31 clinical events, 26 and MRI-defined infarcts. 18,32 The mechanisms by which carotid artery disease may be associated with neurological symptoms and stroke include (1) thrombotic occlusion of large vessels such as the carotid and middle cerebral arteries with hypoperfusion in the vascular distribution supplied by these vessels; (2) cerebral embolism of either atheromatous material from a ruptured or ulcerated carotid plaque or of fibrin-platelet material from a thrombotic plaque to distal vessels; or (3) manifestation or general marker of systemic atherosclerosis occurring at the large and small vessel level.…”
Section: Carotid Disease and The Brainmentioning
confidence: 99%
“…Other less well-substantiated risk factors that might worsen the natural history of asymptomatic stenosis include the presence of an occluded contralateral carotid artery, 39 progressive stenosis, 40 a "soft" or echolucent plaque or evidence of intraplaque hemorrhage on ultrasound. [40][41][42][43] Another logical proposal is that greater benefit will accrue for younger patients (≤55 years) undergoing surgery for asymptomatic stenosis. 44 The situation for moderate, 50%-69% symptomatic stenosis is similar to asymptomatic stenosis.…”
Section: Discussionmentioning
confidence: 99%