Hyperintense Vessels on FLAIR MRI in Patients With Acute Middle
Cerebral Artery Infarction Revealed Pial Collateral on Cerebral
Angiography

J Korean Neurol Assoc > Volume 28(2); 2010 > Article

Journal of the Korean Neurological Association 2010;28(2): 98-100.

뇌혈관조영술에서 연질막 곁순환이 관찰된 급성 중간대뇌동맥경색 환자의 액체감쇠반전회복 뇌자기공명영상에서 보이는 고신호강도 혈관

송태진, 서경임 서상현 a 이경열

연세대학교 의과대학 강남세브란스병원 신경과, 영상의학과 a

Hyperintense Vessels on FLAIR MRI in Patients With Acute Middle Cerebral Artery Infarction Revealed Pial Collateral on Cerebral Angiography

Tae-Jin Song

Department of Neurology and Radiology a , Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Abstract

Hyperintense vessels are frequently observed on fluid-attenuated inversion recovery imaging in acute ischemic stroke patients. Some investigators suggest that a hyperintense vessel sign in patients with middle cerebral arterial occlusion results from collateral blood flow originating in neighboring arterial territories, especially via pial collaterals. We report two cases of acute proximal middle cerebral arterial infarction that exhibited hyperintense vessels signs on fluid-attenuated inversion recovery imaging accompanying pial collaterals as confirmed by cerebral angiography. Key Words: Fluid-attenuated inversion recovery, Cerebral infarction, Collateral circulation