Baker John G, Williams Amy J, Ionita Catalina C, Lee-Kwen Peterkin, Ching Marilou, Miletich Robert S
Department of Nuclear Medicine, State University of New York at Buffalo, Buffalo, N.Y., USA.
Dement Geriatr Cogn Dis Extra. 2012 Jan;2(1):169-79. doi: 10.1159/000333482. Epub 2012 Apr 18.
Cerebral small vessel disease, a leading cause of cognitive decline, is considered a relatively homogeneous disease process, and it can co-occur with Alzheimer's disease. Clinical reports of magnetic resonance imaging (MRI)/computed tomography and single photon emission computed tomography (SPECT) imaging and neuropsychology testing for a small pilot sample of 14 patients are presented to illustrate disease characteristics through findings from structural and functional imaging and cognitive assessment. Participants showed some decreases in executive functioning, attention, processing speed, and memory retrieval, consistent with previous literature. An older subgroup showed lower age-corrected scores at a single time point compared to younger participants. Performance on a computer-administered cognitive measure showed a slight overall decline over a period of 8-28 months. For a case study with mild neuropsychology findings, the MRI report was normal while the SPECT report identified perfusion abnormalities. Future research can test whether advances in imaging analysis allow for identification of cerebral small vessel disease before changes are detected in cognition.
脑小血管疾病是认知功能下降的主要原因,被认为是一个相对同质的疾病过程,并且它可能与阿尔茨海默病同时发生。本文展示了对14名患者的小样本进行磁共振成像(MRI)/计算机断层扫描、单光子发射计算机断层扫描(SPECT)成像以及神经心理学测试的临床报告,以通过结构和功能成像及认知评估的结果来说明疾病特征。参与者在执行功能、注意力、处理速度和记忆检索方面出现了一些下降,这与先前的文献一致。一个年龄较大的亚组在单个时间点的年龄校正分数低于年轻参与者。在一项计算机辅助认知测量中的表现显示在8 - 28个月的时间内总体略有下降。对于一个有轻度神经心理学发现的病例研究,MRI报告正常,而SPECT报告发现了灌注异常。未来的研究可以测试成像分析的进展是否能够在认知发生变化之前识别出脑小血管疾病。