[Brain imaging of Alzheimer' disease: state of the art and perspectives for clinicians]. / Imagerie cérébrale de la maladie d'Alzheimer: état de l'art et perspectives pour le clinician.

To improve the clinical detection of Alzheimer's disease (AD) new diagnostic criteria have been proposed, based on biomarkers of synaptic dysfunction, AD-related neurodegeneration, and Aß cerebral amyloidosis. Magnetic resonance imaging (MRI) and position emission tomography (PET) neuroimaging can be configured as powerful means for the detection of medial-temporal atrophy, reduced uptake of 18F-FDG PET or and increased retention of Aß amyloid protein by amyloïd-PET. In this review, we will discuss these promising techniques that allow assessing in vivo AD pathology and help clinicians to better diagnose and follow-up patients, particularly in clinical trials using disease-modifying treatments.