Oral Session - Parkinson’s Disease
Neuro 713A/B
Thursday, 08 June 2023 16:00 - 18:00
Enzyme Delivery to the Putamen in Parkinson’s Disease Patients by MR-Guided Focused Ultrasound
Yuexi Huang1, Ying Meng2,3, Christopher B. Pople3, Allison Bethune3, Ryan M. Jones1, Agessandro Abrahao3,4, Clement Hamani2,3, Suneil K. Kalia5,6, Lorraine V. Kalia5,7, Nir Lipsman2,3, and Kullervo Hynynen1,8,9
1Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada, 2Division of Neurosurgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada, 3Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, ON, Canada, 4Department of Medicine, University of Toronto, Toronto, ON, Canada, 5Krembil Research Institute, University Health Network, Toronto, ON, Canada, 6Division of Neurosurgery, Toronto Western Hospital, Toronto, ON, Canada, 7Division of Neurology, Toronto Western Hospital, Toronto, ON, Canada, 8Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada, 9Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
The phase I clinical trial demonstrated the successful application of microbubble-assisted MR-guided Focused Ultrasound for blood-brain barrier (BBB) opening in the putamen to facilitate biweekly therapeutic drug delivery in patients with Parkinson's disease. 
Fig.1 Gd-enhanced T1-weighted MRI showing BBB opening within the right putamen (arrows) immediately post-treatment in axial, coronal, and sagittal views.
Fig.2 FDG-PET imaging at 1-month post treatment shows a reduction of metabolism in the treated putamen (black dotted lines).