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AJNR - American Journal of Neuroradiology

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Combinations of the Presence or Absence of Cerebral Microbleeds and Advanced White Matter Hyperintensity as Predictors of Subsequent Stroke Types

H. Naka^a, E. Nomura^c, T. Takahashi^a, S. Wakabayashi^b, Y. Mimori^a, H. Kajikawa^b, T. Kohriyama^c and M. Matsumoto^c

^a Department of Neurology, Suiseikai Kajikawa Hospital
^b Department of Neurosurgery, Suiseikai Kajikawa Hospital
^c Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Graduate School of Biomedical Sciences

View larger version (88K): [in a new window]   Fig 1. MR and CT images obtained from a patient (70-year-old man) with intracerebral hemorrhage in the cerebellum, who had been treated with aspirin after the occurrence of lacunar infarction. A and B, Initial T2*-weighted gradient-echo images (TR/TE, 800/26; flip angle, 20°) show multiple microbleeds in the brain stem, cerebellum, basal ganglia, and cerebral hemispheres. C and D, T2-weighted spin-echo images (TR/TE, 4500/112) do not show advanced white matter hyperintensity. E and F, CT image (E) and T2*-weighted gradient-echo image (F) obtained 9 months after the lacunar infarction show occurrence of cerebellar hemorrhage.

View larger version (60K): [in a new window]   Fig 2. MR images obtained from a patient (85-year-old woman) with lacunar infarction in the right internal capsule after the occurrence of lacunar infarction in the right corona radiata. A and B, Initial T2*-weighted gradient-echo images (TR/TE, 800/26; flip angle, 20°) show no microbleeds. C, T2-weighted spin-echo image (TR/TE, 4500/112) shows advanced white matter hyperintensity. D, Diffusion-weighted image (single-shot echo-planar spin-echo sequence; TR/TE, 5300/135; b = 1000 mm2/s) obtained 23 months after the lacunar infarction shows a hyperintense lesion in the right internal capsule, consistent with acute infarction.