Identification of Sulcal Hyperintense Vessel (Vessel Wall MR Ivy Sign) in Adult Moyamoya Disease with High-Resolution Vessel Wall Imaging : A Pilot Study.

ABSTRACT:

Objective

The leptomeningeal ivy sign is a distinctive finding of Moyamoya disease (MMD), characterized by a linear high signal intensity along the cortical sulci on contrast-enhanced T1 magnetic resonance imaging (MRI) and fluid-attenuated inversion-recovery (FLAIR) MRI. We recently identified a similar linear enhancement along the cortical sulci using gadolinium-enhanced vessel wall MRI (VWMR) in patients with MMD. The aim of this study was to introduce the concept of the "VWMR ivy sign (VIS)".

Methods

Eighteen MMD patients underwent gadolinium-enhanced VWMR. We identified the VIS in gadolinium-enhanced VWMR, represented by a linear high intensity along the cortical sulci. The VIS was assessed by comparing pre and postcontrast T1 black blood sequences on VWMR and was inves

SUBMITTER: Park JI 

PROVIDER: S-EPMC12415493 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature