In the latest issue of the "Grapevine", a newsletter from a PD group in Fairbor n, OHio, there is mention of a diagnostic test for PD, "DOPASCAN". It is a radio-pharmaceutical administered by injection, which "allows physicians to obtain pictures of dopamine neurons with conventional brain scanning". This can measure the deterioration of the neurons, and help diagnose PD. It will "probably be many years before Guilford Pharmaceuticals will successfully develop DOPASCAN into a safe and effective FDA_cleared drug so it cam be used as a diagnostic test, however. They "hope to begin Phase III trials after consultation with FDA. Has anyone any additional info about this??? In view of the large number of errors in dxing PD, this cold be a real breakthrough. Camilla Flintermann, CG for Peter, 79/8, Oxford,Ohio [log in to unmask] * * * * * * * * * * * * * * "Ask me about the CARE list for PD caregivers!" * * * * * * * * * * * * * *