Image of the Month

The advent of the positron emission tomography (PET) radiotracer Pittsburgh Compound B was a tremendous advance for Alzheimer's disease research. It made it possible for neurologists to view amyloid deposition in the brain in living patients. However, one major drawback of the C11-based compound is that an on-site or nearby cyclotron is necessary to produce the tracer. This, unfortunately, limits the amount of amyloid imaging research that can be performed. To learn how the situation is changing, see Image of the Month, page 14.