Study Overview: This research focuses on understanding a group of diseases called alpha-synucleinopathies. These diseases, like Parkinson's Disease (PD), Multiple System Atrophy (MSA), and Dementia with Lewy Bodies (DLB), are linked to nerve problems due to a protein build-up in the brain. The study uses a special imaging technique called [18F]F-DOPA PET, which helps doctors see changes in dopamine, a brain chemical, to predict disease changes in patients with Pure Autonomic Failure (PAF).
- Length and Visits: Participants need to attend multiple visits for imaging. The duration of each visit varies.
- Eligibility: Open to adults 18 and older with PAF, possible PD, MSA, or DLB, and healthy adults. Certain medical conditions or devices may exclude you.
- Risks: Pregnant women and those with certain implants are excluded due to potential risks.