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- D M Greer, P W Schaefer, and L H Schwamm.
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, USA.
- J Neuroimaging. 2001 Jul 1; 11 (3): 317-9.
AbstractIschemia has been proposed as a cause of transient global amnesia (TGA), but proof has been lacking. The authors performed magnetic resonance imaging on a 77-year-old woman with classic TGA at 4 hours and at 6 days after the onset of symptoms. Her initial diffusion-weighted imaging (DWI) and apparent diffusion coefficient imaging suggested an acute infarct in the left mesial temporal lobe. Follow-up T2-weighted imaging at 6 days confirmed the lesion as an ischemic infarct, despite resolution of her symptoms. DWI permits early detection of small ischemic lesions and may identify patients with ischemic TGA who should be evaluated for potential sources of emboli.
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