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In the PAD group,eight scans(14%)had abnormalities other than atrophy;only three(two showing lacunae and one showing infarct)were of possible clinical significance.In the 44 patients not meeting PAD criteria,23 scans (52%)were abnormal,including 15 with infarcts,two with periventricular lucencies,three showing tumors,and one showing hydrocephalus.Conclusions.- These results support the diagnostic value of computed tomographic scanning in atypical dementia and its limited utility in PAD.The data indicate that clinical guidelines can be developed for the application of CT in the diagnosis of dementia. |
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