Sentences with phrase «positive emission tomography»
Using sophisticated computer - driven imaging techniques like PET (positive emission tomography) and the MRI (magnetic resonance imaging), researchers opened up new details about the operation of the brain.
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The operationalization of mild cognitive impairment (MCI) led to targeting earlier symptomatic cases of the illness and treatment strategies based less on pathology and more on a chance to halt or slow decline than there would be earlier in the disease.1 With the development of amyloid imaging, MCI due to AD diagnosis was refined, 2 and early - stage AD was extended further to include preclinical AD, 3 wherein a positive amyloid positron emission tomography (PET) scan or diagnostic low levels of cerebrospinal fluid β - amyloid (Aβ) indicated the presence of pathology in people who were cognitively normal.