PMC4896010_01
88-year-old woman with severe dementia. Increase in mean transit time (MTT), cerebral blood flow (CBF), and blood volume (CBV) within the periphery of the cerebellum. The absence of abnormal signal change in CMRO2 image suggests normal brain oxygen metabolism.
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Conventional GE-T2* images also showed several superficial areas of hypointensity (Fig. 1a). SWI images revealed significantly more numerous microhemorrhages involving both cerebral hemispheres, notably in the occipital lobes, as well as cerebellum (Fig. 1b).