Arbizu J, Larumbe R, Gámez C, Martí J, Martínez-Lage J, Richter J
Servicio de Medicina Nuclear, Clínica Universitaria de Navarra, Pamplona, Navarra, 31008, España.
Rev Esp Med Nucl. 1999 Aug;18(4):252-60.
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).
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).
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.
使用半定量单光子发射计算机断层扫描(SPECT)-99m锝-六甲基丙二胺肟(HMPAO)和神经心理学测试(CERAD)对34例可能患有阿尔茨海默病(AD)的患者(轻度AD = 16例;中度AD = 18例)和12例匹配的对照者进行评估。
颞叶灌注不足(p < 0.01)和记忆测试(p < 0.001)均能够区分对照者与轻度AD患者。在这些患者中,还发现以下各项之间存在显著相关性(p < 0.05):1)延迟回忆测试/颞叶灌注不足;2)学习记忆测试/颞顶叶和额叶灌注不足;3)视觉构建操作/颞叶后部灌注不足。与轻度AD不同,中度AD患者表现出更高程度的颞叶(p < 0.01)、顶叶(p < 0.05)和额叶(p < 0.05)灌注不足,同时操作能力(p < 0.001)和记忆测试(p < 0.05)恶化。
SPECT成像和神经心理学评估能够区分对照者与轻度和中度痴呆程度的AD患者,显示出从AD早期阶段就存在很强的相关性。