Movable Thrombi Diagnosed Using Ultrasonography in Non-Significant Carotid Stenosis
윤지환, 허성혁, 장대일, 김범준,
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윤지환 ( Yun Gyi-Hyaon )
Kyung Hee University Hospital Department of Neurology
허성혁 ( Heo Sung-Hyuk )
Kyung Hee University Hospital Department of Neurology
장대일 ( Chang Dai-Il )
Kyung Hee University Hospital Department of Neurology
김범준 ( Kim Bum-Joon )
Kyung Hee University Hospital Department of Neurology
Abstract
Stenosis of an artery of more than 50% is usually regarded as significant stenosis, which may cause ischemic stroke. However, the nature of plaque may be important, even though the stenosis does not reach a significant degree. A 75-year old man with right arm weakness showed multiple scattered small infarct lesions at the left middle cerebral artery territory with mild stenosis of the left carotid artery. No embolic source was detected from cardiac assessments. Carotid duplex sonography showed a mobile plaque at the carotid artery, which was not detected by conventional angiography. Our case report suggests that direct vessel wall imaging can be useful in patients who have ischemic stroke with an embolic pattern without significant arterial stenosis.
키워드
Carotid artery ulcerating plaque; Ultrasonography, Doppler, Duplex; Carotid artery thromboses
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