BACKGROUND AND PURPOSE: Fluid-attenuated inversion recovery hyperintense vessels
in stroke represent leptomeningeal collateral flow. We presumed that FLAIR hyperintense …

BACKGROUND AND PURPOSE: Hyperintense vessels on baseline FLAIR MR imaging of
patients with ischemic stroke have been linked to leptomeningeal collateralization, yet the …

Background: Hyperintense vessels (HV) on fluid-attenuated inversion recovery imaging are
frequently observed in acute ischemic stroke patients. However, the exact mechanism and …

Background: Hyperintensity of distal vessels on FLAIR-MRI has been associated with a
higher grade of arterial collaterals and a smaller infarct volume in acute stroke patients. No …

ABSTRACT BACKGROUND AND PURPOSE Distal hyperintense vessels (DHV) on MRI
FLAIR sequences in acute brain ischemia are thought to represent leptomeningeal collateral …

BACKGROUND AND PURPOSE: FLAIR vascular hyperintensities are thought to represent
leptomeningeal collaterals in acute ischemic stroke. However, whether all–FLAIR vascular …

Background Fluid-attenuated inversion recovery (FLAIR) hyperintense vessels (FHVs) have
been used to assess leptomeningeal collateral flow in acute ischemic stroke. However, prior …

Background and Purpose—Hyperintense vessels (HVs) have been observed in fluid-
attenuated inversion recovery imaging of patients with acute ischemic stroke and been …

Objective: To describe hyperintense vessels sign (HVS) in patients with acute stroke on fluid-
attenuated inversion recovery (FLAIR) MRI and determine its clinical significance and utility …

Purpose: Hyperintense vessels (HVs) on fluid-attenuated inversion recovery (FLAIR)
imaging are associated with the leptomeningeal collateral circulation in cases of arterial …