期刊
AMYOTROPHIC LATERAL SCLEROSIS AND FRONTOTEMPORAL DEGENERATION
卷 17, 期 7-8, 页码 571-579出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/21678421.2016.1211151
关键词
Voxel-based morphometry (VBM); tract-based spatial statistics (TBSS); probabilistic diffusion tractography; amyotrophic lateral sclerosis (ALS); frontotemporal dementia (FTD)
资金
- Ministry of Health, Labour, and Welfare
- Ministry of Education, Culture, Sports, Science, and Technology of Japan
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- MEXT
- Grants-in-Aid for Scientific Research [26117002, 25293263, 15K19485, 15K15338, 26117001, 16K09700] Funding Source: KAKEN
We investigated common structural and network changes across the sporadic amyotrophic lateral sclerosis (ALS)-frontotemporal dementia (FTD) continuum. Based on cluster analysis using the frontotemporal assessment battery, 51 patients with sporadic ALS were subdivided into three groups: 25 patients with ALS with cognitive deficiency (ALS-CD); seven patients who satisfied FTD criteria (ALS-FTD), and 19 patients with ALS with normal cognitive function (ALS-NC). Compared with the controls, gray matter images from patients with ALS-FTD showed atrophic changes in the following order of severity: caudate head, medial frontal gyrus, thalamus, amygdala, putamen, and cingulate gyrus (peak level, uncorrected p <0.001). The caudate head was significant at the cluster level using FWE correction (p < 0.05). Diffusion tensor imaging with tract-based spatial statistics revealed white matter changes in the areas surrounding the caudate head, the internal capsule, and the anterior horn of the lateral ventricle in the ALS-CD and ALS-FTD. Probabilistic diffusion tractography showed a significant decrease in structural connectivity between the caudate head and the dorsomedial frontal cortex and the lateral orbitofrontal cortex, even in the ALS-NC. Our results indicated that the caudate head and its networks were the most vulnerable to lesion in sporadic ALS-FTD-spectrum patients associated with cognitive decline with FTD features.
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