This site shows plenty (almost too many)of F-DOPA and FDG-DOPA scans. Take a look for yourself. Below is a sample of info. "The deficit in dopamine uptake characteristic of Parkinson's disease can be readily seen using radiolabeled L-DOPA and positron emission tomography. In addition FDG-PET studies of glucose metabolism can be used to differentiate the dementia that often accompanies Parkinson's disease from the movement deficits that are associated with pathology of the basal ganglia." http://www.crump.ucla.edu/software/lpp/clinpetneuro/parkinsons.html Dr. Abe gave the above site, but no comment on F-DOPA and FDG-DOPA scans when asked if they diagnosed PD. simply trying to get at the truth with confidence in my Alma Mater, UCLA, Rayilyn ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn