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J Neurocrit Care 2013;6(1): 47-49.
뒤대뇌동맥 액체감쇠역전회복 고신호혈관징후 2예
연세대학교 의과대학 신경과학교실, 세브란스 혈관대사연구소
Two Cases of Fluid-Attenuated Inversion Recovery Hyperintense Vessels in Posterior Cerebral Artery
Hye Ihn Kim, MD, Kwon Duk Seo, MD and Kyung-Yul Lee, MD, PhD
Department of Neurology, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
Background: Hyperintense vessel sign (HVS) is frequently observed on fluid-attenuated inversion recovery (FLAIR) imaging in stroke patients. Stationary blood flow and slow retrograde circulation due to blood vessel occlusion is suggested as the mechanism. It is occasionally detected in the anterior circulation and relatively rarely in posterior cerebral artery (PCA).
Case Report: We report two cases of PCA FLAIR HVS. FLAIR HVS was observed along the course of PCA distal to the occlusion site.
Conclusions: FLAIR HVS can be observed in patients with PCA territory infarction and it can be used as an imaging marker of arterial occlusion.
Key Words: Fluid-attenuated inversion recovery imaging · Hyperintense vessel sign · Posterior cerebral artery
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