Time course of trace of diffusion tensor [Trace(D)] and histology in brain edema.

摘要: We examined the correlation between changes in trace of diffusion tensor [Trace(D)], regional water content and tissue ultrastructure relating to cellular (cytotoxic) vasogenic brain edema. Cellular edema was induced by left middle cerebral artery occlusion cats (Kuroiwa T et al, 1998). Vasogenic white matter a cold lesion 1999). In edema, increase correlated linearly with Trace(D) decrease both gray matter. However, slopes intercepts lines were significantly different. Hydropic astrocytic swelling seen structures, matter, oligodendrocytic myelinated axonal observed. showed significant linear content. Histologically, nerve fibers dissociated extracellular space markedly enlarged protein-rich fluid. These result that different — for subtype which reflect ultrastructural localization water, should be taken into account when evaluating using mapping.