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Delayed Ischemic Hyperintensity on T1-Weighted MRI in the Caudoputamen and Cerebral Cortex of Humans after Spectacular Shrinking Deficit Stroke 30:1038-1042, Fujioka,M.,et al, 1999 See this aricle in Pubmed Article Abstract Transient ICA-MCA occlusion leading to SSD produces a specific ischemic change with delayed onset in the basal ganglia and cerebral cortex in humans on MRI but not CT scans. We speculate that the lesions represent incomplete ischemic injury , including selective neuronal death, proliferation of glial cells, paramagnetic substance deposition, and/or lipid accumulation. Unlike brief cardiac arrest or hypoglycemia, the localized lesions on MRI of patients after SSD seem to be incomplete and to differ from infarction or hemorrhage.

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