Comparison of grey matter and metabolic reductions in frontotemporal dementia using FDG-PET and voxel-based morphometric MR studies

被引:75
作者
Kanda, Tomonori [1 ]
Ishii, Kazunari [1 ,2 ]
Uemura, Takafumi [1 ]
Miyamoto, Naokazu [1 ]
Yoshikawa, Toshiki [1 ]
Kono, Atsushi K. [1 ]
Mori, Etsuro [3 ,4 ]
机构
[1] Hyogo Brain & Heart Ctr, Dept Radiol & Nucl Med, Himeji, Hyogo 6700981, Japan
[2] Hyogo Inst Aging Brain & Cognit Disorders, Div Neuroimaging Res, Himeji, Hyogo, Japan
[3] Hyogo Inst Aging Brain & Cognit Disorders, Div Clin Neurosci, Himeji, Hyogo, Japan
[4] Tohoku Univ, Grad Sch Med, Sendai, Miyagi 980, Japan
关键词
Frontotemporal dementia; MRI; Voxel-based morphometry; F-18]FDG-PET; Alzheimer's disease; Brain;
D O I
10.1007/s00259-008-0871-5
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Purpose The aim of this study was to investigate the regional differences between the morphologic and functional changes in the same patients with frontotemporal dementia (FTD) using statistical parametric mapping and voxel-based morphometry (VBM). Methods Thirteen FTD patients (mean age, 64.9 years old; mean MMSE score, 17.7), 20 sex-matched Alzheimer's disease (AD) patients (mean age, 65.0 years old; mean MMSE score, 17.5), and 20 normal volunteers (mean age, 65.2 years old; mean MMSE score, 29.0) underwent both [F-18]FDG positron emission tomography and three-dimensional spoiled gradient echo MRI. Statistical parametric mapping was used to conduct a VBM analysis of the morphologic data, which were compared voxel by voxel with the results of a similar analysis of glucose metabolic data. Results FTD patients showed decreased grey matter volume and decreased glucose metabolism in the frontal lobe and anterior temporal lobe. In addition, there was a clear asymmetry in grey matter volume in FTD patients by the VBM analysis while the glucose metabolic data showed little asymmetry. In AD patients, glucose metabolic reduction occurred in the bilateral posterior cingulate gyri and parietal lobules while grey matter density decreased the least in the same patients. Conclusion In FTD, metabolic and morphologic changes occur in the bilateral frontal lobe and temporal lobe with a limited asymmetry whereas there was considerable discordance in the AD group.
引用
收藏
页码:2227 / 2234
页数:8
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