Overestimation of Carotid Artery Stenosis by Carotid Duplex Ultrasonography Due to Contralateral Occlusion
한희조, 최윤정, 정요한, 이경열,
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한희조 ( Han Hee-Jo )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Neurology
최윤정 ( Choi Yun-Jung )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Neurology
정요한 ( Jung Yo-Han )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Neurology
이경열 ( Lee Kyung-Yul )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Neurology
Abstract
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.
키워드
Carotid stenosis; Ultrasonography, Doppler, duplex; Cerebral infarction
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