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- W2009731034 abstract "We sought to identify magnetic resonance imaging (MRI) parameters that can identify as well as predict disruption of the blood–brain barrier (BBB) after embolic stroke in the rat. Rats subjected to embolic stroke with ( n=13) and without ( n=13) rt-PA treatment were followed with MRI using quantitative permeability-related parameters, consisting of: transfer constant ( K i ) of Gd- DTPA, the distribution volume ( V p ) of the mobile protons, and the inverse of the apparent forward transfer rate for magnetization transfer ( k inv ), as well as the apparent diffusion coefficient of water ( ADC w ), T 2 , and cerebral cerebral blood flow (CBF). Tissue progressing to fibrin leakage resulting from BBB disruption and adjacent tissue were then analyzed to identify MRI markers that characterize BBB disruption. Animals were killed after final MRI measurements at 24 h after induction of embolic stroke and cerebral tissues were perfused and stained to detect fibrin leakage. K i , V p , and k inv were the most sensitive early (2 to 3 h) indices of the cerebral tissue that progresses to fibrin leakage. Cerebral blood flow was not significantly different between ischemic tissue with a compromised and an intact BBB. Our data indicate that compromise of the BBB can be sensitively predicted using a select set of MR parameters." @default.
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- W2009731034 date "2005-02-16" @default.
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- W2009731034 title "Quantitative Evaluation of BBB Permeability after Embolic Stroke in Rat Using MRI" @default.
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- W2009731034 doi "https://doi.org/10.1038/sj.jcbfm.9600053" @default.
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