[18F] FBB cortical uptake is not related to the age of onset of Alzheimer's disease.

Aim: To investigate the relationships between amyloid burden in brain and the age of onset of Alzheimer's disease.

Materials And Methods: We examined 60 patients with clinical diagnosis of Alzheimer's disease. Of them, 22 were early-onset of Alzheimer's disease and 38 were late-onset of Alzheimer's disease.