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Moyamoya disease "brush sign"
Moyamoya disease "brush sign"
The conspicuity of multiple deep medullary veins on susceptibility-weighted imaging sequence (oval) from reduced oxygen supply relative to tissue demand resulting in an increase in the concentration of deoxyhemoglobin in venous blood.
Republished with permission of the American Society of Neuroradiology, from: Horie N, Morikawa M, Nozaki A, et al. "Brush sign" on susceptibility-weighted MR imaging indicates the severity of moyamoya disease. Am J Neurorad 2011; 32:1697; permission conveyed through Copyright Clearance Center, Inc. Copyright © 2011.
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