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KMID : 1034720200120020073
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Journal of Neurosonology and Neuroimaging
2020 Volume.12 No. 2 p.73 ~ p.75
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Overestimation of Carotid Artery Stenosis by Carotid Duplex Ultrasonography Due to Contralateral Occlusion
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Han Hee-Jo
Choi Yun-Jung
Jung Yo-Han
Lee Kyung-Yul
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Abstract
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Carotid duplex ultrasonography is a noninvasive and economical method used to diagnose and monitor carotid artery diseases. However, the accuracy of carotid duplex ultrasonography is decreased in the presence of contralateral high-grade stenosis or occlusion. Among the criteria for evaluating the degree of carotid artery stenosis, the Society of Radiologists in Ultrasound consensus criteria are the most widely used owing to their high sensitivity and specificity. Here, we have presented a case in which internal carotid artery (ICA) stenosis was overestimated using the consensus criteria due to the chronic occlusion of the contralateral ICA.
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KEYWORD
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Carotid stenosis, Ultrasonography, Doppler, duplex, Cerebral infarction
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