BACKGROUND AND PURPOSE: An ivy sign is considered to represent diffuse
leptomeningeal collaterals found on fluid-attenuated inversion recovery (FLAIR) images of …

BACKGROUND AND PURPOSE: Moyamoya disease is an idiopathic occlusive
cerebrovascular disorder with abnormal microvascular proliferation. We investigated the …

Background: The ivy sign is sometimes seen on fluid-attenuated inversion recovery (FLAIR)
images in moyamoya disease (MMD). In recent studies using single-photon emission …

Purpose Leptomeningeal collateral, in moyamoya disease (MMD), appears as an ivy sign
on fluid-attenuated inversion-recovery (FLAIR) images. There has been little investigation …

BACKGROUND AND PURPOSE: The “ivy” sign that is identified on FLAIR images in
patients with Moyamoya disease is considered to be leptomeningeal collaterals. The aim of …

BACKGROUND AND PURPOSE: The ability of the ivy sign on contrast-enhanced T1-
weighted MR imaging (CEMR) to reflect cerebral perfusion and postoperative …

Background The prevalence of ivy sign on fluid-attenuated inversion recovery (FLAIR)
imaging in patients with asymptomatic moyamoya disease is unclear. The aim of this study …

Background Leptomeningeal high signal intensity (ivy sign) on fluid-attenuated inversion-
recovery (FLAIR) MR imaging is one of the features of Moyamoya disease. However, the …

Background and Purpose—The ivy sign on fluid-attenuated inversion recovery MRI is a
specific finding in moyamoya disease (MMD). This sign indicates decreased cerebral …

PURPOSE:: There are a few reports on leptomeningeal high signal intensity (LMHI: ivy sign)
on fluid-attenuated inversion-recovery (FLAIR) images in moyamoya disease, but the feature …