Language-activated single-photon emission tomography imaging in the evaluation of language lateralization--evidence from a case of crossed aphasia: case report.
case_report · Level V
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Abstract
We report a right-handed patient who developed a nonfluent aphasia after surgery for a right parietal arteriovenous malformation. Resting brain single-photon emission tomography displayed decreased regional cerebral blood flow only in the right hemisphere, with spared regional cerebral blood flow in the left hemisphere. Single-photon emission tomography performed after a language activation task (Boston Naming Task) showed a consistent area of increased regional cerebral blood flow in the right inferior and posterior frontal lobe, supporting a right hemisphere dominance for language. These results suggest a potential role for this noninvasive study in the evaluation of language lateralization.
Medical subject headings
- Anomia
- Aphasia, Broca
- Dominance, Cerebral
- Intracranial Arteriovenous Malformations
- Postoperative Complications
- Tomography, Emission-Computed, Single-Photon