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Abstract #4763

Evaluation of Atherosclerotic plaques in Acute Ischemic Stroke of Middle Cerebral Artery Territory Using High-Resolution intracranial vessel wall imaging

Hong Sik Byun 1 , Jihoon Cha 1 , Oh Young Bang 2 , Suk Jae Kim 2 , Sookyung Ryoo 2 , Hyung-Jin Kim 1 , Byung-joon Kim 1 , Yi Kyung Kim 1 , Ji Young Lee 1 , Pyoung Jeon 1 , and Keon Ha Kim 1

1 Departments of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, 2 Departments of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Recently, high-resolution (HR) intracranial vessel wall imaging is used to demonstrate intracranial arterial wall abnormality. The aim of this study was to evaluate atherosclerotic plaque with contrast enhancement on the middle cerebral arteries (MCA) in patients with unilateral noncardiogenic acute ischemic stroke. Twenty-eight patients were included in this study. MRI was performed at 3.0 T. The patterns of enhancing wall thickening of the ipsilateral and contralateral MCA were compared. All of ipsilateral MCA and most of contralateral MCA showed enhancing wall thickening, however, the burden and involved site was different between ipsilateral and contralateral MCA.

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