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Published in: European Journal of Nuclear Medicine and Molecular Imaging 9/2018

01-07-2018 | Guidelines

Clinical utility of FDG-PET for the differential diagnosis among the main forms of dementia

Authors: Peter J. Nestor, Daniele Altomare, Cristina Festari, Alexander Drzezga, Jasmine Rivolta, Zuzana Walker, Femke Bouwman, Stefania Orini, Ian Law, Federica Agosta, Javier Arbizu, Marina Boccardi, Flavio Nobili, Giovanni Battista Frisoni, for the EANM-EAN Task Force for the Prescription of FDG-PET for Dementing Neurodegenerative Disorders

Published in: European Journal of Nuclear Medicine and Molecular Imaging | Issue 9/2018

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Abstract

Aim

To assess the clinical utility of FDG-PET as a diagnostic aid for differentiating Alzheimer’s disease (AD; both typical and atypical forms), dementia with Lewy bodies (DLB), frontotemporal lobar degeneration (FTLD), vascular dementia (VaD) and non-degenerative pseudodementia.

Methods

A comprehensive literature search was conducted using the PICO model to extract evidence from relevant studies. An expert panel then voted on six different diagnostic scenarios using the Delphi method.

Results

The level of empirical study evidence for the use of FDG-PET was considered good for the discrimination of DLB and AD; fair for discriminating FTLD from AD; poor for atypical AD; and lacking for discriminating DLB from FTLD, AD from VaD, and for pseudodementia. Delphi voting led to consensus in all scenarios within two iterations. Panellists supported the use of FDG-PET for all PICOs—including those where study evidence was poor or lacking—based on its negative predictive value and on the assistance it provides when typical patterns of hypometabolism for a given diagnosis are observed.

Conclusion

Although there is an overall lack of evidence on which to base strong recommendations, it was generally concluded that FDG-PET has a diagnostic role in all scenarios. Prospective studies targeting diagnostically uncertain patients for assessing the added value of FDG-PET would be highly desirable.
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Metadata
Title
Clinical utility of FDG-PET for the differential diagnosis among the main forms of dementia
Authors
Peter J. Nestor
Daniele Altomare
Cristina Festari
Alexander Drzezga
Jasmine Rivolta
Zuzana Walker
Femke Bouwman
Stefania Orini
Ian Law
Federica Agosta
Javier Arbizu
Marina Boccardi
Flavio Nobili
Giovanni Battista Frisoni
for the EANM-EAN Task Force for the Prescription of FDG-PET for Dementing Neurodegenerative Disorders
Publication date
01-07-2018
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Nuclear Medicine and Molecular Imaging / Issue 9/2018
Print ISSN: 1619-7070
Electronic ISSN: 1619-7089
DOI
https://doi.org/10.1007/s00259-018-4035-y

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