Left hemisphere intracerebral hemorrhages studied by (F‐18)‐fluorodeoxyglucose PET

We used PET to study patients with intracerebral hemorrhages in the left hemisphere. Three anatomic and physiologic patterns were observed. Patients 1 and 2 had midputamen hemorrhages with diffuse left < right hemispheric metabolic asymmetry most prominent in temporal and parietal regions. Patients 3 and 4 had posterior putamen-insula-temporal hemorrhages with left < right metabolic asymmetry in temporoparietal cortex and thalamus. Patients 5, 6, and 7 had smaller posterior hemorrhages. Left cortical metabolism was little affected in these three cases. Persistent aphasia was associated with severe metabolic left < right asymmetry in posterior middle temporal regions.

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