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Early Blood Brain Barrier Changes in Acute Ischemic Stroke: A Sequential MRI Study
Author(s) -
Giraud Marc,
Cho TaeHee,
Nighoghossian Norbert,
MaucortBoulch Delphine,
Deiana Gianluca,
Østergaard Leif,
Baron JeanClaude,
Fiehler Jens,
Pedraza Salvador,
Derex Laurent,
Berthezène Yves
Publication year - 2015
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/jon.12225
Subject(s) - medicine , fluid attenuated inversion recovery , magnetic resonance imaging , stroke (engine) , univariate analysis , logistic regression , blood–brain barrier , cardiology , radiology , multivariate analysis , nuclear medicine , central nervous system , mechanical engineering , engineering
BACKGROUND AND PURPOSE We sought to identify MRI factors associated with BBB changes at the acute stage of ischemic stroke. METHODS We analyzed BBB changes on admission and within 3 hours after the first scan. BBB changes was defined as the presence of leptomeningeal and parenchymal contrast enhancement on T1‐weighted imaging. T max , CBV, and DWI lesion volume were assessed on baseline MRI. Clinical and MRI factors associated with BBB changes were assessed by univariate and multivariate logistic regressions analyses. RESULTS Forty‐four patients were included. BBB changes on baseline MRI was observed in 2 of 44 patients (3%). BBB disruption on H3‐MRI was present in 19 of 44 patients (43%). Hemodynamic status and baseline ischemic core size were not different between patients with or without BBB changes. BBB alteration on H3 MRI was strongly associated with FLAIR MRI sequence positivity, 16/19 patients (83%) P = .001. CONCLUSION BBB changes are exceptional during the first 3 hours after stroke onset. Delayed BBB alteration was associated with FLAIR positivity mainly reflecting vasogenic edema.