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99mTc-HMPAO SPECT was found to be most useful in distinguishing Alzheimer' s disease from vascular dementia and fronto temporal dementia,and least useful in differentiating between Alzheimer's disease and Lewy body disease,and between vascular dementia,frontotemporal dementia,and progressive aphasia.It is suggested that CBF SPECT should be used selectively and as an adjunct to clinical evaluation and CT. |
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