The “Dot CT Sign” Indicates MCA Branch Occlusion
نویسندگان
چکیده
منابع مشابه
A CT Marker of Acute Ischemia
Background and Purpose—The hyperdense appearance of the main middle cerebral artery (HMCA) is now a familiar early warning of large cerebral infarction, brain edema, and poor prognosis. This article describes the hyperdensity associated with embolic occlusion of branches of the middle cerebral artery in the sylvian fissure (MCA “dot” sign). We define it and determine its incidence, diagnostic v...
متن کاملValidation of computed tomographic middle cerebral artery "dot"sign: an angiographic correlation study.
BACKGROUND AND PURPOSE The middle cerebral artery (MCA) "dot" sign consists of hyperdensity of an arterial structure, seen as a dot in the sylvian fissure. The MCA dot sign has been proposed to indicate thrombosis of M2 or M3 MCA branches, analogous to the hyperdense middle cerebral artery (HMCA) sign indicating M1 thrombosis. The MCA dot sign has not been validated previously against the gold ...
متن کاملEffect of STA-MCA anastomosis on the course of experimental acute MCA embolic occlusion.
The experiments in this report were designed to evaluate the effect of superficial temporal-middle cerebral artery (STA-MCA) anastomosis on the course of middle cerebral artery (MCA) occlusion by emboli while avoiding a vessel clipping technique as well as the use of long-acting barbiturate anesthesia. Dogs were divided into 3 general groups: A) embolus placement 1 h following anastomosis; B) e...
متن کاملThe napkin-ring sign indicates advanced atherosclerotic lesions in coronary CT angiography.
OBJECTIVES This study sought to determine the accuracy of plaque pattern assessment by coronary computed tomography angiography (CCTA) to differentiate between early and advanced atherosclerotic lesions as defined by histology. BACKGROUND A ringlike attenuation pattern of coronary atherosclerotic plaques termed as napkin-ring sign (NRS) was described in CCTA of patients who had acute coronary...
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Coronary computed tomography angiography (CCTA) is used extensively nowa‐ days as a non-invasive imaging method for the evaluation of patients suspected of coronary artery disease, providing data on calcium burden, the presence of coro‐ nary artery stenoses, but also, more recently, on coronary atherosclerotic plaque morphology and composition. Plaque morphology analysis by CCTA aims to accu‐ r...
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ژورنال
عنوان ژورنال: Stroke
سال: 2003
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.0000080944.04893.48