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中华脑血管病杂志(电子版) ›› 2021, Vol. 15 ›› Issue (05) : 302 -307. doi: 10.11817/j.issn.1673-9248.2021.05.006

论著

基于动脉自旋磁共振技术探讨阿尔茨海默病脑血流特点与认知功能的关系
周英奕1, 时晶2, 魏明清2, 倪敬年2, 李婷2, 张立苹3, 谭中建4, 田金洲2,()   
  1. 1. 100700 北京中医药大学东直门医院脑病三科;100029 北京中医药大学针灸推拿学院
    2. 100700 北京中医药大学东直门医院脑病三科
    3. 100700 北京中医药大学东直门医院放射科
    4. 100029 北京中医药大学针灸推拿学院
  • 收稿日期:2021-09-09 出版日期:2021-10-09
  • 通信作者: 田金洲

Relationship between cerebral blood flow characteristics and cognitive function in Alzheimer's disease by using arterial spin labeling magnetic resonance imaging

Yingyi Zhou1, Jing Shi2, Mingqing Wei2, Jingnian Ni2, Ting Li2, Liping Zhang3, Zhongjian Tan4, Jinzhou Tian2,()   

  1. 1. 3rd Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China; College of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
    2. 3rd Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
    3. College of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
    4. Department of Radiology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
  • Received:2021-09-09 Published:2021-10-09
  • Corresponding author: Jinzhou Tian
引用本文:

周英奕, 时晶, 魏明清, 倪敬年, 李婷, 张立苹, 谭中建, 田金洲. 基于动脉自旋磁共振技术探讨阿尔茨海默病脑血流特点与认知功能的关系[J]. 中华脑血管病杂志(电子版), 2021, 15(05): 302-307.

Yingyi Zhou, Jing Shi, Mingqing Wei, Jingnian Ni, Ting Li, Liping Zhang, Zhongjian Tan, Jinzhou Tian. Relationship between cerebral blood flow characteristics and cognitive function in Alzheimer's disease by using arterial spin labeling magnetic resonance imaging[J]. Chinese Journal of Cerebrovascular Diseases(Electronic Edition), 2021, 15(05): 302-307.

目的

应用脑动脉自旋标记磁共振技术(ASL-MRI),探讨阿尔茨海默病(AD)患者脑血流变化特点及其与认知功能的关系。

方法

选择2020年9月至2021年3月就诊于北京中医药大学东直门医院门诊、病房的AD患者13例为AD组,13例年龄、性别匹配的认知功能正常受试者为正常对照组。对2组受试对象采用ASL-MRI进行皮质脑血流定量测量,采用神经心理学量表进行认知功能综合评价。采用t检验比较2组受试者不同脑区脑血流的差异,以受试者操作特征曲线下面积(AUC)评价各脑区脑血流值对AD的诊断效能,并应用Pearson相关分析各脑区脑血流与认知功能的关系。

结果

与正常对照组相比,AD组脑血流普遍减慢,其中中央前回、额中回、后扣带回及左侧颞中叶的脑血流下降[(30.44±8.02)ml/(100 g·min)vs(42.63±12.89)ml/(100 g·min);(29.73±15.70)ml/(100 g·min)vs(47.44±14.30)ml/(100 g·min);(39.69±13.31)ml/(100 g·min)vs(58.84±15.98)ml/(100 g·min);(40.87±14.62)ml/(100 g·min)vs(56.92±16.47)ml/(100 g·min)],差异具有统计学意义(t=2.410、2.500、2.762、2.186,P=0.028、0.024、0.014、0.044),这些区域对诊断AD具有一定价值(AUC=0.78、0.80、0.83、0.78)。额中回及左侧后扣带回的脑血流与简易精神状态检查量表定向力评分呈正相关关系(r=0.489、0.511,P=0.040、0.030)。

结论

AD患者脑血流普遍下降,其中额中回和后扣带回区域下降明显,且与认知功能评分相关。

Objective

To investigate the characteristics of cerebral blood flow (CBF) in Alzheimer's disease (AD) and its relationship with cognitive function by arterial spin labeling magnetic resonance imaging (ASL-MRI).

Methods

Thirteen AD patients admitted to Dongzhimen Hospital, Beijing University of Chinese Medicine from September 2020 to March 2021 were included as the AD group; and other 13 cognitively normal subjects with age and gender matched were included as the normal control group. The cortical CBF was measured by ASL-MRI, and their cognitive function was evaluated by neuropsychological scales. The receriver operating characteristic curve was used to evaluate the diagnostic efficacy of CBF value in each brain region for AD, and correlation analysis was used to study the relationship between CBF in different brain regions and cognitive function.

Results

The cerebral blood flow in AD group generally showed decreased compared with the normal control group, especially the cerebral blood flow in the anterior central gyrus, middle frontal gyrus, posterior cingulate gyrus, and left middle temporal lobe [(30.44±8.02) ml/(100 g·min) vs (42.63±12.89) ml/(100 g·min), (29.73±15.70) ml/(100 g·min) vs (47.44±14.30) ml/(100 g·min), (39.69±13.31) ml/(100 g·min) vs (58.84±15.98) ml/(100 g·min), (40.87±14.62) ml/(100 g·min) vs (56.92±16.47) ml/(100 g·min)]. These differences were statistically significant (t=2.410, 2.500, 2.762, 2.186; P=0.028, 0.024, 0.014, 0.044). These areas may be of value in the diagnosis of AD (area under curve = 0.78, 0.80, 0.83, 0.78). CBF of middle frontal gyrus and left posterior cingulate gyrus were positively correlated with MMSE orientation score(r=0.489, 0.511; P=0.040, 0.030).

Conclusion

CBF in AD patients generally decreased, especially in the middle frontal gyrus and posterior cingulate gyrus, which was related to the score of cognitive function.

表1 2组受试者人口学特征、神经心理学资料比较
图1 阿尔茨海默病组(图a)和正常对照组(图b)大脑皮层血流速度图
表2 AD组、正常对照组不同脑区脑血流值比较[ml/(100 g·min),
xˉ
±s]
图2 各脑区脑血流鉴别阿尔茨海默病与正常对照的受试者操作特征曲线
表3 各脑区脑血流值鉴别阿尔茨海默病和正常对照的受试者操作特征曲线结果
表4 AD组、正常对照组简易精神状态检查量表总分及单项评分比较(分)
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