{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wang LX"],"funding":["National Natural Science Foundation of China"],"pagination":["694-700"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8040985"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["42(4)"],"pubmed_abstract":["<h4>Background and purpose</h4>The ability of the ivy sign on contrast-enhanced T1-weighted MR imaging (CEMR) to reflect cerebral perfusion and postoperative revascularization in Moyamoya disease remains largely unknown. We aimed to compare the capabilities of CEMR and FLAIR.<h4>Materials and methods</h4>CEMR, FLAIR, arterial spin-labeling, and DSA were performed in 44 patients with Moyamoya disease. The ivy sign was scored separately on CEMR and FLAIR using the Alberta Stroke Program Early CT Score. The status of leptomeningeal collaterals was scored on DSA. The postoperative Matsushima grade was evaluated at least 3 months after surgical revascularization.<h4>Results</h4>Scoring of the ivy sign on CEMR showed excellent interrater reliability, and FLAIR vascular hyperintensity showed mode"],"journal":["AJNR. American journal of neuroradiology"],"pubmed_title":["Ivy Sign in Moyamoya Disease: A Comparative Study of the FLAIR Vascular Hyperintensity Sign Against Contrast-Enhanced MRI."],"pmcid":["PMC8040985"],"funding_grant_id":["81825012","81730048"],"pubmed_authors":["Hao FB","Duan L","Ma L","Lan YN","Bian XB","Wang LX","Lou X","Wang H","Zhang DK","Lv JH","Wang XR","Wei MT","Zhang SH","Han DS"],"additional_accession":[]},"is_claimable":false,"name":"Ivy Sign in Moyamoya Disease: A Comparative Study of the FLAIR Vascular Hyperintensity Sign Against Contrast-Enhanced MRI.","description":"<h4>Background and purpose</h4>The ability of the ivy sign on contrast-enhanced T1-weighted MR imaging (CEMR) to reflect cerebral perfusion and postoperative revascularization in Moyamoya disease remains largely unknown. We aimed to compare the capabilities of CEMR and FLAIR.<h4>Materials and methods</h4>CEMR, FLAIR, arterial spin-labeling, and DSA were performed in 44 patients with Moyamoya disease. The ivy sign was scored separately on CEMR and FLAIR using the Alberta Stroke Program Early CT Score. The status of leptomeningeal collaterals was scored on DSA. The postoperative Matsushima grade was evaluated at least 3 months after surgical revascularization.<h4>Results</h4>Scoring of the ivy sign on CEMR showed excellent interrater reliability, and FLAIR vascular hyperintensity showed mode","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Apr","modification":"2025-04-04T23:03:10.577Z","creation":"2025-04-04T23:03:10.577Z"},"accession":"S-EPMC8040985","cross_references":{"pubmed":["33664105"],"doi":["10.3174/ajnr.A7010","10.3174/ajnr.a7010"]}}