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  • Title: [Correlations between brain SPECT and neuropsychology assessments in mild and moderate stages of Alzheimer's disease].
    Author: Arbizu J, Larumbe R, Gámez C, Martí J, Martínez-Lage J, Richter J.
    Journal: Rev Esp Med Nucl; 1999 Aug; 18(4):252-60. PubMed ID: 10481106.
    Abstract:
    UNLABELLED: Thirty-four patients with a probable Alzheimer's Disease (AD) (mild AD = 16; moderate AD = 18) and 12 matched controls were evaluated using semiquantitative SPECT-99mTc-HMPAO and neuropsychological tests (CERAD). RESULTS: Both temporal hypoperfusion (p < 0.01) and memory tests (p < 0.001) made it possible to differentiate the controls from mild AD patients. In these patients, significant correlations (p < 0.05) were also found between: 1) delayed recall test/temporal hypoperfusion, 2) learning memory test/temporoparietal and frontal hypoperfusion and 3) visual constructive praxis/posterior temporal hypoperfusion. In contrast to mild AD, moderate AD patients showed higher temporal (p < 0.01) parietal and frontal (p < 0.05) hypoperfusion along with worsening of praxis (p < 0.001) and memory tests (p < 0.05). CONCLUSIONS: SPECT imaging and neuropsychology evaluation can distinguish controls from AD patients with mild an moderate grades of dementia, showing a strong correlation from the early stages of AD.
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