Amyloid Tracer Clinically Useful in Cognitive Impairment

December 5, 2012

Using positron emission tomography (PET) scans with a recently approved amyloid tracer to identify brain plaques is helpful in the diagnosis and management of patients with progressive cognitive impairment, new research shows.

Mark Mintun, MD, Avid Radiopharmaceuticals, Philadelphia, Pennsylvania, and colleagues found that PET imaging using florbetapir F18 showed amyloid deposits in 113 out of 229 patients being evaluated for progressive cognitive decline or impairment of uncertain etiology. The information provided by the scan then led physicians to change their diagnosis in approximately 55% of patients.