UNASSIGNED:本研究探讨皮质下缺血性血管病(SIVD)-血管性认知障碍无痴呆(VCIND)患者的结构影像学改变及灰质体积改变与认知障碍领域的相关性,为早期诊断和治疗提供新的靶点。
UNASSIGNED:我们的研究包括15例SIVD-正常认知障碍(SIVD-NCI)患者,63与SIVD-VCIND,26患有SIVD-血管性痴呆(SIVD-VD),和14个正常控制(NC)。收集所有参与者的T1加权图像,采用DPABI和SPM12软件对4组的灰质进行体素处理。费希尔的精确检验,采用单因素方差分析和Kruskal-WallisH检验评估所有临床和人口统计学数据,并比较各组中脑灰质萎缩的特征.最后,提取SIVD-VCIND的感兴趣区域(ROI),并对ROI与神经心理学量表结果进行Pearson相关性分析。
UNASSIGNED:与NC相比,在双侧眶额回中观察到灰质萎缩的变化,右颞中回,颞上回,和SIVD-VCIND中的precuneus。左侧小脑6区、小脑1区、双侧丘脑灰质萎缩,右前叶,和SIVD-VD中的calcarine。与SIVD-VCIND相比,在SIVD-VD中观察到双侧丘脑的灰质萎缩变化(p<0.05,按家庭误差校正)。在SIVD-VCIND中,灰质总体积,双侧眶内侧额上回,右颞上回,颞中回,与波士顿命名测试得分呈正相关,而灰质总体积,右颞上回,颞中回与总体认知呈正相关。
UNASSIGNED:结构磁共振成像可检测SIVD-VCIND和SIVD-VD患者灰质中广泛而细微的结构变化,为解释皮质下血管性认知障碍的发病机制提供有价值的证据,有助于SIVD-VCIND的早期诊断和SIVD-VD的早期预警。
UNASSIGNED: This
study explored the structural imaging changes in patients with subcortical ischemic vascular disease (SIVD)-vascular cognitive impairment no dementia (VCIND) and the correlation between the changes in gray matter volume and the field of cognitive impairment to provide new targets for early diagnosis and treatment.
UNASSIGNED: Our
study included 15 patients with SIVD-normal cognitive impairment (SIVD-NCI), 63 with SIVD-VCIND, 26 with SIVD-vascular dementia (SIVD-VD), and 14 normal controls (NC). T1-weighted images of all participants were collected, and DPABI and SPM12 software were used to process the gray matter of the four groups based on voxels. Fisher\'s exact test, one-way ANOVA and Kruskal-Wallis H test were used to evaluate all clinical and demographic data and compare the characteristics of diencephalic gray matter atrophy in each group. Finally, the region of interest (ROI) of the SIVD-VCIND was extracted, and Pearson correlation analysis was performed between the ROI and the results of the neuropsychological scale.
UNASSIGNED: Compared to the NC, changes in gray matter atrophy were observed in the bilateral orbitofrontal gyrus, right middle temporal gyrus, superior temporal gyrus, and precuneus in the SIVD-VCIND. Gray matter atrophy was observed in the left cerebellar region 6, cerebellar crural region 1, bilateral thalamus, right precuneus, and calcarine in the SIVD-VD. Compared with the SIVD-VCIND, gray matter atrophy changes were observed in the bilateral thalamus in the SIVD-VD (p < 0.05, family-wise error corrected). In the SIVD-VCIND, the total gray matter volume, bilateral medial orbital superior frontal gyrus, right superior temporal gyrus, middle temporal gyrus, and precuneus were positively correlated with Boston Naming Test score, whereas the total gray matter volume, right superior temporal gyrus, and middle temporal gyrus were positively correlated with overall cognition.
UNASSIGNED: Structural magnetic resonance imaging can detect extensive and subtle structural changes in the gray matter of patients with SIVD-VCIND and SIVD-VD, providing valuable evidences to explain the pathogenesis of subcortical vascular cognitive impairment and contributing to the early diagnosis of SIVD-VCIND and early warning of SIVD-VD.