L’imagerie TEP-traceurs des plaques amyloïdes : le point de vue du clinicien |
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Authors: | J Delrieu B Vellas |
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Institution: | a Alzheimer''s disease clinical research centre, gérontopôle, Toulouse university hospital, 31059 Toulouse, France b Inserm U1027, 31000 Toulouse, France |
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Abstract: | The purpose of this article is to summarize the main elements of clinician point of view concerning the contribution of amyloid neuroimaging in the diagnostic approach of the Alzheimer's disease. The main pathological characteristics of the Alzheimer's disease are established by two types of protein aggregates: the extracellular plaques (containing Aβ aggregates) and neurofibrillary tangles (composed of aggregates of tau-protein). At present, the use of biomarkers is more and more included in the diagnostic approach of Alzheimer's disease. The possibility to highlight in vivo cortical amyloid deposits through the amyloid neuroimaging can allow the realization of an earlier diagnosis. However, the amyloid imaging is a “physiopathological” biomarker and is not correlated with the clinical evaluation. It is still difficult to differentiate the Alzheimer's disease of the other neurodegenerative diseases. |
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Keywords: | Biomarqueur Maladie d&rsquo Alzheimer Dé pô ts amyloï des Imagerie amyloï de |
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