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

Han Soo Yoo, Seok Jong Chung, Soo Jong Kim, Jung Su Oh, Jae Seung Kim, Byoung Seok Ye, Young Ho Sohn, philhyu Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1585-1595
Number of pages11
JournalEuropean Journal of Nuclear Medicine and Molecular Imaging
Volume45
Issue number9
DOIs
Publication statusPublished - 2018 Jul 1

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Progressive Supranuclear Palsy
Frontotemporal Dementia
Dopamine Plasma Membrane Transport Proteins
Corpus Striatum
Parkinsonian Disorders
ROC Curve
Nortropanes
Language
2-carbomethoxy-8-(3-fluoropropyl)-3-(4-iodophenyl)tropane
Carbon

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

Yoo, Han Soo ; Chung, Seok Jong ; Kim, Soo Jong ; Oh, Jung Su ; Kim, Jae Seung ; Ye, Byoung Seok ; Sohn, Young Ho ; Lee, philhyu. / The role of 18F-FP-CIT PET in differentiation of progressive supranuclear palsy and frontotemporal dementia in the early stage. In: European Journal of Nuclear Medicine and Molecular Imaging. 2018 ; Vol. 45, No. 9. pp. 1585-1595.
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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.",
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The role of 18F-FP-CIT PET in differentiation of progressive supranuclear palsy and frontotemporal dementia in the early stage. / Yoo, Han Soo; Chung, Seok Jong; Kim, Soo Jong; Oh, Jung Su; Kim, Jae Seung; Ye, Byoung Seok; Sohn, Young Ho; Lee, philhyu.

In: European Journal of Nuclear Medicine and Molecular Imaging, Vol. 45, No. 9, 01.07.2018, p. 1585-1595.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The role of 18F-FP-CIT PET in differentiation of progressive supranuclear palsy and frontotemporal dementia in the early stage

AU - Yoo, Han Soo

AU - Chung, Seok Jong

AU - Kim, Soo Jong

AU - Oh, Jung Su

AU - Kim, Jae Seung

AU - Ye, Byoung Seok

AU - Sohn, Young Ho

AU - Lee, philhyu

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