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The role of 18F-FP-CIT PET in differentiation of progressive supranuclear palsy and frontotemporal dementia in the early stage

Authors
 Han Soo Yoo  ;  Seok Jong Chung  ;  Soo-Jong Kim  ;  Jung Su Oh  ;  Jae Seung Kim  ;  Byoung Seok Ye  ;  Young Ho Sohn  ;  Phil Hyu Lee 
Citation
 European Journal of Nuclear Medicine and Molecular Imaging, Vol.45(9) : 1585-1595, 2018 
Journal Title
 European Journal of Nuclear Medicine and Molecular Imaging 
ISSN
 1619-7070 
Issue Date
2018
MeSH
Aged ; Female ; Frontotemporal Dementia/diagnostic imaging* ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Supranuclear Palsy, Progressive/diagnostic imaging* ; Tomography, Emission-Computed, Single-Photon* ; Tropanes
Keywords
18F-FP-CIT PET ; Cognition ; Frontotemporal dementia ; Parkinsonism ; Progressive supranuclear palsy
Abstract
PURPOSE: The purpose of this study was to evaluate whether the pattern of striatal dopamine transporter (DAT) availability could differentiate between progressive supranuclear palsy (PSP) and frontotemporal dementia (FTD) in the first few years of the disease. METHODS: We enrolled patients who had Parkinsonism and frontal dysfunction and/or language deficit, visited the clinic within 2 years of the onset of symptoms, and had been followed-up for longer than 5 years; thus resulting in 26 patients with PSP and 24 patients with FTD. By quantitatively analyzing N-(3-[18F]fluoropropyl)-2β-carbon ethoxy-3β-(4-iodophenyl) nortropane PET, we compared the pattern of DAT availability at the time of the baseline evaluation between the two groups. The discriminatory power of variables including DAT activity and clinical parameters was investigated by receiver operating characteristics (ROC) analyses. Additionally, we analyzed the correlation between striatal subregional DAT availability and cognitive profiles. RESULTS: Patients with PSP and FTD had significantly lower DAT availability than normal controls in the whole striatum and in each striatal subregion. When comparing the two groups, DAT availability was significantly lower in patients with PSP than those with FTD in all striatal subregions. The PSP and FTD groups had generally similar subregional patterns of DAT activity in terms of the anteroposterior and ventrodorsal gradients and asymmetry, except for a different preferential involvement in the caudate. The ROC analysis showed that the DAT activity of the whole striatum had an excellent discriminatory power relative to Parkinsonism or neurocognitive profiles. Correlation analysis showed that verbal memory was significantly correlated with DAT availability in the whole striatum and the putaminal subregion only in patients with PSP. CONCLUSIONS: DAT scans have prognostic value in determining whether patients with Parkinsonism and behavioral and/or language dysfunction will develop features of PSP or FTD later in the disease course.
Full Text
https://link.springer.com/article/10.1007%2Fs00259-018-4019-y
DOI
10.1007/s00259-018-4019-y
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
손영호(Sohn, Young Ho) ORCID logo https://orcid.org/0000-0001-6533-2610
예병석(Ye, Byoung Seok) ORCID logo https://orcid.org/0000-0003-0187-8440
유한수(Yoo, Han Soo) ORCID logo https://orcid.org/0000-0001-7846-6271
이필휴(Lee, Phil Hyu) ORCID logo https://orcid.org/0000-0001-9931-8462
정석종(Chung, Seok Jong) ORCID logo https://orcid.org/0000-0001-6086-3199
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/166832
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