Professor Ellmore will serve as co-investigator on this study "A randomized, double-blind, placebo-controlled trial of allogeneic bone marrow-derived Mesenchymal Stem Cells as a disease-modifying therapy for idiopathic Parkinson’s disease". In this role, he will apply his skills in human neuroimaging and be in charge of exploring the MSC mechanism of action by planning optimal study design, curating, processing and evaluating neuroimaging data including perfusion, structural, functional and neuromelanin MRI. Additionally, he will contribute to data interpretation and manuscript writing.