Brain Imaging Techniques Sharpen Focus on Alzheimer's

"Imaging techniques such as PET and MRI are near to becoming useful in diagnosing Alzheimer's disease earlier : and distinguishing it from other types of dementia...For example, one study at the conference reports the latest data on a new PET technology that allows researchers to see � for the first time � accumulations of the abnormal protein tau in the brains of people with a rare form of dementia. "