Fluid-Attenuated Inversion Recovery Vascular Hyperintensity

Abstract

FLAIR Vascular Hyperintensity (FVH) is a circular or serpentine brightening in brain parenchyma or cortical surface bordering the subarachnoid space. Slow flow and statis cause a high signal on FLAIR in contrast to the normal flow void phenomenon of arteries. Although proximal vessel sign in the MCA territory represent thrombus, distal FVH represent slow blood flow. This article point out the property of FVH and provide information about FVH for utilization of clinical effectiveness.