Abstract:Alzheimer disease is the most common neurodegenerative disease in the elderly population, characterized by amyloid deposition and neurofibrillary tangles. In recent years, molecular PET imaging technology has made great progress, which provides effective methods to study the pathological process of Alzheimer disease. Although many imaging techniques are still in the early stages of research, some have been widely used in clinical practice. In this paper, the progress of the commonly used molecular PET imaging techniques in Alzheimer disease is reviewed.